Ändra sökning
Avgränsa sökresultatet
1 - 48 av 48
RefereraExporteraLänk till träfflistan
Permanent länk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Träffar per sida
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sortering
  • Standard (Relevans)
  • Författare A-Ö
  • Författare Ö-A
  • Titel A-Ö
  • Titel Ö-A
  • Publikationstyp A-Ö
  • Publikationstyp Ö-A
  • Äldst först
  • Nyast först
  • Skapad (Äldst först)
  • Skapad (Nyast först)
  • Senast uppdaterad (Äldst först)
  • Senast uppdaterad (Nyast först)
  • Disputationsdatum (tidigaste först)
  • Disputationsdatum (senaste först)
  • Standard (Relevans)
  • Författare A-Ö
  • Författare Ö-A
  • Titel A-Ö
  • Titel Ö-A
  • Publikationstyp A-Ö
  • Publikationstyp Ö-A
  • Äldst först
  • Nyast först
  • Skapad (Äldst först)
  • Skapad (Nyast först)
  • Senast uppdaterad (Äldst först)
  • Senast uppdaterad (Nyast först)
  • Disputationsdatum (tidigaste först)
  • Disputationsdatum (senaste först)
Markera
Maxantalet träffar du kan exportera från sökgränssnittet är 250. Vid större uttag använd dig av utsökningar.
  • 1. Chen, X.
    et al.
    Lin, R.
    Cui, J.
    Gan, L.
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS).
    Ozolins, O.
    Udalcovs, A.
    Jiang, T.
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Tang, M.
    Fu, S.
    Liu, D.
    TDHQ Enabling Fine-Granularity Adaptive Loading for SSB-DMT Systems2018Ingår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 30, nr 19, s. 1687-1690, artikel-id 8443443Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In this letter, we introduce time domain hybrid quadrature amplitude modulation (TDHQ) for the single sideband discrete multi-tone systems. The experimental results reveal that with a single precoding set and the proposed adaptive loading algorithm, the TDHQ scheme can achieve finer granularity and therefore smoother continuous growth of data rate than that with the conventional quadrature amplitude modulation. Besides, thanks to the frame construction and the tailored mapping rule, the scheme with TDHQ has an obviously better peak to an average power ratio. 

  • 2.
    Estaran, Jose Manuel
    et al.
    Nokia Bell Labs, F-91620 Nozay, France..
    Mardoyan, Haik
    Nokia Bell Labs, F-91620 Nozay, France..
    Jorge, Filipe
    Joint Lab Nokia Bell Labs Thales Res & Technol, Lab 3 5, F-91767 Palaiseau, France.;CEA Leti, F-91767 Palaiseau, France..
    Ozolins, Oskars
    RISE Acreo AB, Networking & Transmiss Lab, S-16425 Kista, Sweden..
    Udalcovs, Aleksejs
    RISE Acreo AB, Networking & Transmiss Lab, S-16425 Kista, Sweden..
    Konczykowska, Agnieszka
    Joint Lab Nokia Bell Labs Thales Res & Technol, Lab 3 5, F-91767 Palaiseau, France.;CEA Leti, F-91767 Palaiseau, France..
    Riet, Muriel
    Joint Lab Nokia Bell Labs Thales Res & Technol, Lab 3 5, F-91767 Palaiseau, France.;CEA Leti, F-91767 Palaiseau, France..
    Duval, Bernadette
    Joint Lab Nokia Bell Labs Thales Res & Technol, Lab 3 5, F-91767 Palaiseau, France.;CEA Leti, F-91767 Palaiseau, France..
    Nodjiadjim, Virginie
    Joint Lab Nokia Bell Labs Thales Res & Technol, Lab 3 5, F-91767 Palaiseau, France.;CEA Leti, F-91767 Palaiseau, France..
    Dupuy, Jean-Yves
    Joint Lab Nokia Bell Labs Thales Res & Technol, Lab 3 5, F-91767 Palaiseau, France.;CEA Leti, F-91767 Palaiseau, France..
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Westergren, Urban
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Bigo, Sebastien
    Nokia Bell Labs, F-91620 Nozay, France..
    140/180/204-Gbaud OOK Transceiver for Inter- and Intra-Data Center Connectivity2019Ingår i: Journal of Lightwave Technology, ISSN 0733-8724, E-ISSN 1558-2213, Vol. 37, nr 1, s. 178-187Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We report on an ON OFF keying intensity-modulation and direct-detection C-band optical transceiver capable of addressing all datacenter interconnect environments at well beyond 100 Gbaud. For this, the transmitter makes the use of two key InP technologies: a 2:1 double heterojunction bipolar transistor selector multiplexer and a monolithically integrated distributed feedback laser traveling-wave electro-absorption modulator, both exceeding 100-GHz of 3-dB analog bandwidth. A preamplified 110-Gaz PIN photodiode prior to a 100-CHs analog-to-digital converter complete the ultrahigh bandwidth transceiver module; the device under study. In the experimental work, which discriminates between intra- and inter-data center scenarios (dispersion unmanaged 120, 560, and 960 m; and dispersion-managed 10 and 80 km of standard single-mode fiber), we evaluate the bit-error rate evolution against the received optical power at 140, 180, and 204 Gbaud ON OFF keying for different equalization configurations (adaptive linear filter with and without the help of short-memory sequence estimation) and forward error correction schemes (hard-decision codes with 7% and 20% overhead); drawing conclusions from the observed system-level limitations of the respective environments at this ultrahigh baudrate, as well as from the operation margins and sensitivity metrics. From the demonstration, we highlight three results: successful operation with >6-dB sensitivity margin below the 7% error-correction at 140 Gbaud over the entire 100 m-80 km range with only linear feed-forward equalization. Then, the transmission of a 180-Gbaud ON OFF keying carrier over 80 km considering 20% error-correction overhead. Finally, a 10-km communication at 204 (Maud ON OFF keying with up to 6 dB sensitivity margin, and regular 7% overhead error-correction.

  • 3.
    Hong, Xuezhi
    et al.
    KTH, Skolan för informations- och kommunikationsteknik (ICT). South China Normal Univ, ZJU SCNU Joint Res Ctr Photon, Guangzhou, Guangdong, Peoples R China..
    Zhang, Lu
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab). RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Ozolins, Oskars
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Udalcovs, Aleksejs
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Guo, Changjian
    South China Normal Univ, ZJU SCNU Joint Res Ctr Photon, Guangzhou, Guangdong, Peoples R China..
    Nordwall, Fredrik
    Tektronix AB, Stockholm, Sweden..
    Engenhardt, Klaus M.
    Tektronix GmbH, Stuttgart, Germany..
    Kakkar, Aditya
    KTH, Skolan för elektroteknik och datavetenskap (EECS).
    Rodrigo Navarro, Jaime
    KTH, Skolan för elektroteknik och datavetenskap (EECS).
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Westergren, Urban
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, Gunnar
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Xiao, Shilin
    Shanghai Jiao Tong Univ, State Key Lab Adv Opt Commun Syst & Networks, Shanghai, Peoples R China..
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    200-Gbps DMT Transmission over 1.6-km SSMF with A Single EML/DAC/PD for Optical Interconnects at C-Band2017Ingår i: 43RD EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC 2017), IEEE , 2017Konferensbidrag (Refereegranskat)
    Abstract [en]

    We report on the first experimental demonstration of 200-Gbps (net rate 166.7-Gbps) 1.55-mu m DMT IMDD transmission over 1.6 km fiber using a single monolithically-integrated-EML, DAC and photodiode, achieving an effective electrical spectrum efficiency of 4.93 bit/s/Hz.

  • 4. Hu, H.
    et al.
    Jia, S.
    Lo, M. -C
    Zhang, Lu
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab). School of SE-IEE, Shanghai Jiao Tong University, Shanghai, 200240, China.
    Ozolins, O.
    Udalcovs, A.
    Kong, D.
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Yu, X.
    Xiao, S.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS.
    Carpintero, G.
    Morioka, T.
    Oxenlowe, L.
    TuB4.1-chip based thz emitter for ultra-high speed THz wireless communication (Invited)2019Ingår i: IEEE Photonics Society Summer Topical Meeting Series 2019, SUM 2019, Institute of Electrical and Electronics Engineers (IEEE), 2019, artikel-id 8794888Konferensbidrag (Refereegranskat)
    Abstract [en]

    By using a monolithically integrated dual-distributed feedback (DFB) laser chip attached to a photomixing uni-Travelling carrier photodiode (UTC-PD) with a THz antenna, single-channel THz photonic-wireless transmission system with a net rate of 131 Gbit/s over a wireless distance of 10.7 m has been achieved.

  • 5. Jia, S.
    et al.
    Wang, S.
    Liu, K.
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Zhang, H.
    Jin, X.
    Zheng, S.
    Chi, H.
    Zhang, X.
    Yu, X.
    A unified system with integrated generation of high-speed communication and high-resolution sensing signals based on THz photonics2018Ingår i: Journal of Lightwave Technology, ISSN 0733-8724, E-ISSN 1558-2213, Vol. 36, nr 19, s. 4549-4556, artikel-id 8425966Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Multifunctional convergence is one of the key physical features in future generation networks and Internet of things architectures. In this paper, we propose and experimentally demonstrate a unified terahertz (THz) system operating in the 300 GHz band, with a potential of simultaneously enabling high-speed communication and high-resolution ranging over a common optical infrastructure. Both THz communication and THz sensing signals are generated based on THz photonics and cutting-edge terahertz transceiver technologies. In the experiment, 16-quadrature amplitude modulation modulated THz signal is generated by photo-mixing two free running lasers for the communication, and linear frequency modulated (LFM) THz pulses are generated based on optical interferometer-based frequency-to-time mapping (FTM) for sensing. The experimental results show that up to 56 Gbit/s net rate is successfully transmitted over a 2 m free-space line-of-sight link, and the THz LFM pulses with a time-bandwidth product of up to 207 are successfully generated, which is potentially able to enable a cm-scale range resolution. We also investigate the frequency multiplexing schemes for two signals by changing the channel gap at the transmitter side. To the best of our knowledge, such a system represents the first demonstration of integrated generation system in the THz region above 300 GHz, which has great potential in prospective applications of future converged networks. 

  • 6. Jia, Shi
    et al.
    Pang, Xiaodan
    KTH, Skolan för informations- och kommunikationsteknik (ICT). RISE Acreo AB, NETLAB, SE-16425 Kista, Sweden.
    Ozolins, Oskars
    Yu, Xianbin
    Hu, Hao
    Yu, Jinlong
    Guan, Pengyu
    Da Ros, Francesco
    Popov, Sergei
    KTH, Skolan för informations- och kommunikationsteknik (ICT).
    Jacobsen, Gunnar
    Galili, Michael
    Morioka, Toshio
    Zibar, Darko
    Oxenlowe, Leif K.
    0.4 THz Photonic-Wireless Link With 106 Gb/s Single Channel Bitrate2018Ingår i: Journal of Lightwave Technology, ISSN 0733-8724, E-ISSN 1558-2213, Vol. 36, nr 2, s. 610-616Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    To accommodate the demand of exponentially increased global wireless data traffic, the prospective data rates for wireless communication in the market place will soon reach 100 Gb/s and beyond. In the lab environment, wireless transmission throughput has been elevated to the level of over 100 Gb/s attributed to the development of photonic-assisted millimeter wave and terahertz (THz) technologies. However, most of recent demonstrations with over 100 Gb/s data rates are based on spatial or frequency division multiplexing techniques, resulting in increased system's complexity and energy consumption. Here, we experimentally demonstrate a single channel 0.4 THz photonic-wireless link achieving a net data rate of beyond 100 Gb/s by using a single pair of THz emitter and receiver, without employing any spatial/frequency division multiplexing techniques. The high throughput up to 106 Gb/s within a single THz channel is enabled by combining spectrally efficient modulation format, ultrabroadband THz transceiver and advanced digital signal processing routine. Besides that, our demonstration from system-wide implementation viewpoint also features high transmission stability, and hence shows its great potential to not only decrease the system's complexity, butalsomeet the requirements of prospective data rates for bandwidth-hungryshort-range wireless applications.

  • 7.
    Lin, Rui
    et al.
    KTH.
    Kerrebrouck, J. V.
    Pang, Xiaodan
    KTH.
    Verplaetse, M.
    Ozolins, O.
    Udalcovs, A.
    Zhang, Lu
    KTH.
    Gan, L.
    Tang, M.
    Fu, S.
    Schatz, Richard
    KTH.
    Westergren, Urban
    KTH.
    Popov, Sergei
    KTH.
    Liu, D.
    Tong, W.
    Keulenaer, T. D. E.
    Torfs, G.
    Bauwelinck, J.
    Yin, X.
    Chen, Jiajia
    KTH.
    Real-time 100 Gbps/λ/core NRZ and EDB IM/DD transmission over multicore fiber for intra-datacenter communication networks2018Ingår i: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 26, nr 8, s. 10519-10526Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A BiCMOS chip-based real-time intensity modulation/direct detection spatial division multiplexing system is experimentally demonstrated for both optical interconnects. 100 Gbps/λ/core electrical duobinary (EDB) transmission over 1 km 7-core multicore fiber (MCF) is carried out, achieving KP4 forward error correction (FEC) limit (BER < 2E-4). Using optical dispersion compensation, 7 × 100 Gbps/λ/core transmission of both non-return-to-zero (NRZ) and EDB signals over 10 km MCF transmission is achieved with BER lower than 7% overhead hard-decision FEC limit (BER < 3.8E-3). The integrated low complexity transceiver IC and analog signal processing approach make such a system highly attractive for the high-speed intra-datacenter interconnects.

  • 8.
    Lin, Rui
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Lu, Yang
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Ozolins, Oskars
    RISE Acreo AB, Networking & Transmiss Lab, SE-16425 Kista, Sweden..
    Cheng, Yuxin
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Udalcovs, Aleksejs
    RISE Acreo AB, Networking & Transmiss Lab, SE-16425 Kista, Sweden..
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, Gunnar
    RISE Acreo AB, Networking & Transmiss Lab, SE-16425 Kista, Sweden..
    Tang, Ming
    Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Hubei, Peoples R China..
    Liu, Deming
    Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Hubei, Peoples R China..
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    First Experimental Demonstration of Physical-Layer Network Coding in PAM4 System for Passive Optical Interconnects2017Ingår i: 43RD EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC 2017), IEEE , 2017Konferensbidrag (Refereegranskat)
    Abstract [en]

    We propose to implement physical-layer network coding (PLNC) in coupler-based passive optical interconnects. The PLNC over PAM4 system is for the first time experimentally validated, where simultaneous mutual communications can be kept within the same wavelength channel, doubling spectrum efficiency.

  • 9.
    Lin, Rui
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Van Kerrebrouck, J.
    Belgium.
    Verplaetse, M.
    Belgium.
    Ozolins, O.
    Udalcovs, A.
    Zhang, Lu
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Gan, L.
    China.
    Tang, M.
    China.
    Fu, S.
    China.
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Westergren, Urban
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Liu, D.
    China.
    Tong, W.
    China.
    De Keulenaer, T.
    Belgium.
    Torfs, G.
    Belgium.
    Bauwelinck, J.
    Belgium.
    Yin, X.
    Belgium.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Real-time 100 Gbps/λ/core NRZ and EDB IM/DD transmission over 10 km multicore fiber2018Ingår i: Optics InfoBase Conference Papers, Optical Society of America, 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    A BiCMOS chip-based real-time IM/DD spatial division multiplexing system is experimentally demonstrated for short-reach communications. 100 Gbps/λ/core NRZ and EDB transmission is achieved below 7%-overhead HD-FEC limit after 10km 7-core fiber with optical dispersion compensation.

  • 10.
    Lin, Rui
    et al.
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China.;KTH Royal Inst Technol, Electrum 229, Kista, Sweden..
    Pang, Xiaodan
    KTH.
    Van Kerrebrouck, Joris
    Univ Ghent, IMEC, Dept Informat Technol INTEC, IDLab, Ghent, Belgium..
    Verplaetse, Michiel
    Univ Ghent, IMEC, Dept Informat Technol INTEC, IDLab, Ghent, Belgium..
    Ozolins, Oskars
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Udalcovs, Aleksejs
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Zhang, Lu
    KTH.
    Gan, Lin
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Tang, Ming
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Fu, Songnian
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Schatz, Richard
    KTH.
    Westergren, Urban
    KTH.
    Popov, Sergei
    KTH.
    Liu, Deming
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Tong, Weijun
    Yangtze Opt Fiber & Cable Joint Stock Ltd Co YOFC, Wuhan, Hubei, Peoples R China..
    De Keulenaer, Timothy
    Univ Ghent, IMEC, Spin Off IDLab, BiFAST, Ghent, Belgium..
    Torfs, Guy
    Univ Ghent, IMEC, Dept Informat Technol INTEC, IDLab, Ghent, Belgium..
    Bauwelinck, Johan
    Univ Ghent, IMEC, Dept Informat Technol INTEC, IDLab, Ghent, Belgium..
    Yin, Xin
    Univ Ghent, IMEC, Dept Informat Technol INTEC, IDLab, Ghent, Belgium..
    Chen, Jiajia
    KTH.
    Real-time 100 Gbps/lambda/core NRZ and EDB IM/DD Transmission over 10 km Multicore Fiber2018Ingår i: 2018 Optical Fiber Communications Conference and Exposition, OFC 2018 - Proceedings, Institute of Electrical and Electronics Engineers (IEEE), 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    A BiCMOS chip-based real-time IM/DD spatial division multiplexing system is experimentally demonstrated for short-reach communications. 100 Gbps/./core NRZ and EDB transmission is achieved below 7%-overhead HD-FEC limit after 10km 7-core fiber with optical dispersion compensation.

  • 11.
    Lin, Rui
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Udalcovs, A.
    Ozolins, O.
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Gan, L.
    Shen, L.
    Tang, M.
    Fu, S.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Yang, C.
    Tong, W.
    Liu, D.
    Da Silva, T. F.
    Xavier, G. B.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Telecom Compatibility Validation of Quantum Key Distribution Co-Existing with 112 Gbps/λ/core Data Transmission in Non-Trench and Trench-Assistant Multicore Fibers2018Ingår i: European Conference on Optical Communication, ECOC, Institute of Electrical and Electronics Engineers Inc. , 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    We experimentally characterize photon leakage from 112Gb/s data channels in both non-trench and trench-assistant 7-core fibers, demonstrating telecom compatibility for QKD co-existing with high-speed data transmission when a proper core/wavelength allocation is carried out.

  • 12.
    Lin, Rui
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS).
    Udalcovs, Aleksejs
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Ozolins, Oskars
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS).
    Gan, Lin
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Shen, Li
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Tang, Ming
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Fu, Songnian
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Yang, Chen
    Yangtze Opt Fiber & Cable Joint Stock Ltd Co YOFC, Wuhan, Hubei, Peoples R China..
    Tong, Weijun
    Yangtze Opt Fiber & Cable Joint Stock Ltd Co YOFC, Wuhan, Hubei, Peoples R China..
    Liu, Deming
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    da Silva, Thiago Ferreira
    Natl Inst Metrol Qual & Technol, Opt Metrol Div, Duque De Caxias, Brazil..
    Xavier, Guilherme. B.
    Linkopings Univ, Inst Syst Tekn, Linkoping, Sweden..
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS).
    Integrating Quantum Key Distribution with the Spatial Division Multiplexing Enabled High Capacity Optical Networks2018Ingår i: 2018 ASIA COMMUNICATIONS AND PHOTONICS CONFERENCE (ACP), IEEE , 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    In this talk, we discuss integrating the quantum key distribution (QKD) th the spatial division multiplexing (SDM) enabled optical mmunication network for the cyber security.

  • 13.
    Lin, Rui
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab). Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Van Kerrebrouck, Joris
    Univ Ghent, Imec, IDLab, Dept Informat Technol, Ghent, Belgium..
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab). RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Verplaetse, Michiel
    Univ Ghent, Imec, IDLab, Dept Informat Technol, Ghent, Belgium..
    Ozolins, Oskars
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Udalcovs, Aleksejs
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Zhang, Lu
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Gan, Lin
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Tang, Ming
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Fu, Songnian
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Westergren, Urban
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Liu, Deming
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Tong, Weijun
    Yangtze Opt Fiber & Cable Joint Stock Ltd Co YOFC, Wuhan, Hubei, Peoples R China..
    De Keulenaer, Timothy
    Univ Ghent, Imec, Spin Off IDLab, BiFAST, Ghent, Belgium..
    Torfs, Guy
    Univ Ghent, Imec, IDLab, Dept Informat Technol, Ghent, Belgium..
    Bauwelinck, Johan
    Univ Ghent, Imec, IDLab, Dept Informat Technol, Ghent, Belgium..
    Yin, Xin
    Univ Ghent, Imec, IDLab, Dept Informat Technol, Ghent, Belgium..
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Spatial Division Multiplexing for Optical Data Center Networks2018Ingår i: 22ND INTERNATIONAL CONFERENCE ON OPTICAL NETWORK DESIGN AND MODELING (ONDM 2018) / [ed] Ruffini, M Tzanakaki, A Casellas, R Autenrieth, A MarquezBarja, JM, IEEE , 2018, s. 239-241Konferensbidrag (Refereegranskat)
    Abstract [en]

    Emerging mobile and cloud applications drive everincreasing capacity demands, particularly for short-reach optical communications, where low-cost and low-power solutions are highly required. Spatial division multiplexing (SDM) techniques provide a promising way to scale up the lane count per fiber, while reducing the number of fiber connections and patch cords, and hence simplifying cabling complexity. This talk will address challenges on both system and network levels, and report our recent development on SDM techniques for optical data center networks.

  • 14.
    Liu, Kexin
    et al.
    Zhejiang Univ, Coll Informat Sci & Elect Engn, Hangzhou 310027, Zhejiang, Peoples R China..
    Jia, Shi
    Zhejiang Univ, Coll Informat Sci & Elect Engn, Hangzhou 310027, Zhejiang, Peoples R China..
    Wang, Shiwei
    Zhejiang Univ, Coll Informat Sci & Elect Engn, Hangzhou 310027, Zhejiang, Peoples R China..
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Li, Wei
    Zhejiang Univ, Coll Informat Sci & Elect Engn, Hangzhou 310027, Zhejiang, Peoples R China..
    Zheng, Shilie
    Zhejiang Univ, Coll Informat Sci & Elect Engn, Hangzhou 310027, Zhejiang, Peoples R China..
    Chi, Hao
    Zhejiang Univ, Coll Informat Sci & Elect Engn, Hangzhou 310027, Zhejiang, Peoples R China..
    Jin, Xiaofeng
    Zhejiang Univ, Coll Informat Sci & Elect Engn, Hangzhou 310027, Zhejiang, Peoples R China..
    Zhang, Xianmin
    Zhejiang Univ, Coll Informat Sci & Elect Engn, Hangzhou 310027, Zhejiang, Peoples R China..
    Yu, Xianbin
    Zhejiang Univ, Coll Informat Sci & Elect Engn, Hangzhou 310027, Zhejiang, Peoples R China..
    100 Gbit/s THz Photonic Wireless Transmission in the 350-GHz Band With Extended Reach2018Ingår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 30, nr 11, s. 1064-1067Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In this letter, we experimentally demonstrate terahertz (THz) photonic wireless transmission of high-speed quadrature-phase-shift-keying (QPSK) and 16 quadrature amplitude modulation (16-QAM) signals in the 350-GHz band, with an effort to extend the wireless reach of ultrafast 100 Gbit/s. In the experiment, a narrowband unitraveling-carrier photodiode (UTC-PD) is used for heterodyne generation of THz communication signals, which is transparent to optical modulation formats. Experimental results show that 30 GBd/s QPSK (60 Gbit/s) and 25 GBd/s 16-QAM signals (100 Gbit/s) are successfully transmitted over a 350-GHz wireless link with an extended distance of 2 m. This enhancement is enabled by combining the techniques of employing cutting-edge narrowband UTC-PD as the photomixing THz emitter, spectrally efficient modulation format and advanced digital signal processing algorithms. The achievement makes 100 Gbit/s THz wireless communication systems promising for future smart wireless services.

  • 15.
    Lu, Yang
    et al.
    KTH.
    Agrell, Erik
    Chalmers Univ Technol, Dept Elect Engn, Gothenburg, Sweden..
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Ozolins, Oskars
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Hong, Xuezhi
    KTH.
    Lin, Rui
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Cheng, Yuxin
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Udalcovs, Aleksejs
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, Gunnar
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Matrix Receiving Scheme Supporting Arbitrary Multiple-Wavelength Reception for Optical Interconnects2017Ingår i: 43RD EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC 2017), IEEE , 2017Konferensbidrag (Refereegranskat)
    Abstract [en]

    An arbitrary multiple-wavelength reception scheme using only a few fixed-wavelength filters is proposed for optical interconnects. Filter matrices design based on error-control coding theory is devised. The feasibility of the proposed scheme is demonstrated in a four-wavelength reception experiment.

  • 16.
    Lu, Yang
    et al.
    Hangzhou Dianzi Univ, Coll Commun Engn, Hangzhou, Zhejiang, Peoples R China..
    Agrell, Erik
    Chalmers Univ Technol, Dept Elect Engn, Gothenburg, Sweden..
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab). RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Ozolins, Oskars
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Hong, Xuezhi
    South China Normal Univ, ZJU SCNU Joint Res Ctr Photon, Guangzhou 510006, Guangdong, Peoples R China..
    Lin, Rui
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Cheng, Yuxin
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Udalcovs, Aleksejs
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, Gunnar
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Multi-channel collision-free reception for optical interconnects2018Ingår i: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 26, nr 10, s. 13214-13222Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A multi channel reception scheme that allows each node to receive an arbitrary set of wavelengths simultaneously (i.e., collision-free) is proposed for optical interconnects. The proposed scheme only needs to use a few receivers and fixed-wavelength filters that are designed based on error-control coding theory. Experiments with up to four channel collision-free reception units are carried out to demonstrate the feasibility of the proposed scheme.

  • 17. Mardoyan, H.
    et al.
    Jorge, F.
    Ozolins, O.
    Estaran, J. M.
    Udalcovs, A.
    Konczykowska, A.
    Riet, M.
    Duval, B.
    Nodjiadjim, V.
    Dupuy, J. -Y
    Pang, Xiaodan
    KTH, Skolan för informations- och kommunikationsteknik (ICT). RISE Acreo AB, Sweden.
    Westergren, Urban
    KTH, Skolan för informations- och kommunikationsteknik (ICT).
    Chen, Jiajia
    KTH, Skolan för informations- och kommunikationsteknik (ICT).
    Popov, Sergei
    KTH, Skolan för informations- och kommunikationsteknik (ICT).
    Bigo, S.
    204-GBaud On-OffKeying transmitter for inter-data center communications2018Ingår i: Optics InfoBase Conference Papers, Optics Info Base, Optical Society of America, 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    We demonstrate an on-offkeyed transmitter with direct detection, at record symbol rates of 204Gbaud and 140Gbaud, over 10km and 80km, respectively, powered by a high-speed InPbased 2:1 selector and travelling-wave electro-absorption laser-modulator.

  • 18. Navarro, J. R.
    et al.
    Udalcovs, A.
    Pang, Xiaodan
    KTH, Skolan för informations- och kommunikationsteknik (ICT).
    Ozolins, O.
    Kakkar, Aditya
    KTH, Skolan för teknikvetenskap (SCI).
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI).
    Nordwall, F.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, G.
    High phase noise tolerant circular-64QAM with efficient phase recovery for coherent optical systems2017Ingår i: Optics InfoBase Conference Papers, OSA - The Optical Society , 2017Konferensbidrag (Refereegranskat)
    Abstract [en]

    We experimentally demonstrate the significant phase noise tolerance increase of 28Gbaud circular-64QAM constellations against its square-64QAM counterpart with a novel, low complexity and high-performance phase recovery scheme employing only 8 test phases.

  • 19. Ozolins, O.
    et al.
    Da Ros, F.
    Cristofori, V.
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Udalcovs, A.
    Schatz, R.
    Oxenløwe, L. K.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, G.
    Peucheret, C.
    Impact of phase-filtering on optical spectral reshaping with microring resonators for directly-modulated 4-PAM signals2018Ingår i: Optics InfoBase Conference Papers, Optical Society of America, 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    We investigate microring resonator (MRRs)-based optical spectral reshaping for directly-modulated 4-PAM signals. The phase-filtering of MRR, and consequent dispersion added to the signal, yields 120% reach increase compared to the 95% of amplitude-only filtering.

  • 20. Ozolins, O.
    et al.
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Udalcovs, A.
    Lin, Rui
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Van Kerrebrouck, J.
    Gan, L.
    Zhang, Lu
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Tang, M.
    Fu, S.
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Westergren, Urban
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, G.
    Liu, D.
    Tong, W.
    Torfs, G.
    Bauwelinck, J.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Yin, X.
    7×149 Gbit/s PAM4 transmission over 1 km multicore fiber for short-reach optical interconnects2018Ingår i: Optics InfoBase Conference Papers, Optics Info Base, Optical Society of America, 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    We transmit 80 Gbaud/λ/core PAM4 signal enabled by 1.55 μm EML over 1 km 7-core fiber. The solution achieves single-wavelength and single-fiber 1.04 Tbit/s post-FEC transmission enhancing bandwidth-density for short-reach optical interconnects.

  • 21.
    Ozolins, O.
    et al.
    RISE Acreo, Kista, Sweden..
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab). RISE Acreo, Kista, Sweden.
    Udalcovs, A.
    RISE Acreo, Kista, Sweden..
    Zhang, Lu
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Westergren, Urban
    Jacobsen, G.
    RISE Acreo, Kista, Sweden..
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Short Reach Optical Interconnects with Single Externally Modulated Laser Operated in C-Band2018Ingår i: 2018 20TH ANNIVERSARY INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS (ICTON) / [ed] Jaworski, M Marciniak, M, Institute of Electrical and Electronics Engineers (IEEE), 2018Konferensbidrag (Refereegranskat)
  • 22. Ozolins, O.
    et al.
    Udalcovs, A.
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Lin, Rui
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Djupsjöbacka, A.
    Mårtensson, J.
    Fröjdh, K.
    Gan, L.
    Tang, M.
    Fu, S.
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Westergren, Urban
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Liu, D.
    Tong, W.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, G.
    112 Gbps/λ PAM4 inter-DCI with continuous-fiber Bragg grating based dispersion compensators2018Ingår i: Optics InfoBase Conference Papers, OSA - The Optical Society , 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    We demonstrate 56 Gbaud/λ PAM4 inter - data center interconnects over 81 km single core single mode fiber and 33.6 km 7-core single mode fiber with continuous-fiber Bragg grating based chromatic dispersion compensators covering C-band.

  • 23.
    Pang, Xiaodan
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Ozolins, O.
    RISE Acreo AB, NETLAB Networking & Transmiss Lab, Isafjordsgatan 22, S-16440 Kista, Sweden..
    Navarro, Julien R. G.
    Udalcovs, A.
    RISE Acreo AB, NETLAB Networking & Transmiss Lab, Isafjordsgatan 22, S-16440 Kista, Sweden..
    Kakkar, Aditya
    KTH, Skolan för elektroteknik och datavetenskap (EECS).
    Lin, Rui
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik. KTH Royal Inst Technol, Isafjordsgatan 22, S-16440 Kista, Sweden..
    Tang, M.
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Fu, S.
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Liu, D.
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Jacobsen, G.
    RISE Acreo AB, NETLAB Networking & Transmiss Lab, Isafjordsgatan 22, S-16440 Kista, Sweden..
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Low-Complexity Digital Signal Processing Techniques to Enable Coherent Optical Systems for Metro and Access networks2018Ingår i: 23RD OPTO-ELECTRONICS AND COMMUNICATIONS CONFERENCE (OECC2018), IEEE , 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    We summarize our recent research works on enabling coherent optical transmission systems for metro and access networks with low-complexity digital signal processing techniques, focusing on reduction of laser linewidth requirement with efficient carrier phase recovery.

  • 24.
    Pang, Xiaodan
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Ozolins, O.
    Zhang, L.
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Udalcovs, A.
    Storck, Joakim
    KTH.
    Maisons, G.
    Carras, M.
    Xiao, S.
    Jacobsen, G.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Lourdudoss, Sebastian
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    4 Gbps PAM-4 and DMT Free Space Transmission using a 4.65-pm Quantum Cascaded Laser at Room Temperature2017Ingår i: European Conference on Optical Communication, ECOC, Institute of Electrical and Electronics Engineers Inc. , 2017, s. 1-3Konferensbidrag (Refereegranskat)
    Abstract [en]

    We experimentally demonstrate 4Gbps PAM-4 and DMT transmissions using a quantum cascaded laser (QCL) emitting at mid-wavelength infrared of 4.65μm and a commercial infrared photovoltaic detector. The QCL is directly modulated and operated at room temperature with Peltier Cooling. 

  • 25.
    Pang, Xiaodan
    et al.
    KTH, Skolan för informations- och kommunikationsteknik (ICT), Kommunikationssystem, CoS.
    Ozolins, Oskars
    El-Taher, Atalla
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik.
    Jacobsen, Gunnar
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik.
    Sergeyev, Sergey
    Popov, Sergei
    KTH, Skolan för informations- och kommunikationsteknik (ICT), Material- och nanofysik, Optik och Fotonik, OFO.
    Experimental Evaluation of Impairments in Unrepeatered DP-16QAM Link with Distributed Raman Amplification2017Ingår i: PHOTONICS, ISSN 2304-6732, Vol. 4, nr 1, artikel-id 16Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The transmission impairments of a Raman amplified link using dual-polarization 16-quadrature amplitude modulation (DP-16QAM) are experimentally characterized. The impact of amplitude and phase noise on the signal due to relative intensity noise (RIN) transfer from the pump are compared for two pumping configurations: first-order backward pumping and bi-directional pumping. Experimental results indicate that with increased Raman backward pump power, though the optical signal-to-noise ratio (OSNR) is increased, so is the pump-induced amplitude and phase noise. The transmission performance is firstly improved by the enhanced OSNR at a low pump power until an optimum point is reached, and then the impairments due to pump-induced noise start to dominate. However, the introduction of a low pump power in the forward direction can further improve the system's performance.

  • 26.
    Pang, Xiaodan
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Ozolins, Oskars
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Zhang, Lu
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Udalcovs, Aleksejs
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Storck, Joakim
    KTH, Skolan för elektroteknik och datavetenskap (EECS).
    Maisons, Gregory
    mirSense, Ctr Integrat Nanolnnov, F-91120 Palaiseau, France..
    Carras, Mathieu
    mirSense, Ctr Integrat Nanolnnov, F-91120 Palaiseau, France..
    Xiao, Shilin
    Shanghai Jiao Tong Univ, State Key Lab Adv Opt Commun Syst & Networks, Shanghai, Peoples R China..
    Jacobsen, Gunnar
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Lourdudoss, Sebastian
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    4 Gbps PAM-4 and DMT Free Space Transmission using A 4.65-mu m Quantum Cascaded Laser at Room Temperature2017Ingår i: 43RD EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC 2017), IEEE , 2017Konferensbidrag (Refereegranskat)
    Abstract [en]

    We experimentally demonstrate 4Gbps PAM-4 and DMT transmissions using a quantum cascaded laser (QCL) emitting at mid-wavelength infrared of 4.65-mu m and a commercial infrared photovoltaic detector. The QCL is directly modulated and operated at room temperature with Peltier Cooling.

  • 27.
    Pang, Xiaodan
    et al.
    KTH, Skolan för informations- och kommunikationsteknik (ICT), Kommunikationssystem, CoS.
    Rodrigo Navarro, Jaime
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Optik och Fotonik, OFO.
    Kakkar, Aditya
    KTH, Skolan för informations- och kommunikationsteknik (ICT), Material- och nanofysik, Optik och Fotonik, OFO.
    Olmedo, Miguel Iglesias
    Ozolins, Oskars
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Optik och Fotonik, OFO.
    Schatz, Richard
    KTH, Skolan för informations- och kommunikationsteknik (ICT), Centra, Kista Photonics Research Center, KPRC. KTH, Skolan för informations- och kommunikationsteknik (ICT), Material- och nanofysik, Optik och Fotonik, OFO.
    Udalcovs, Aleksejs
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Optik och Fotonik, OFO.
    Popov, Sergei
    KTH, Skolan för informations- och kommunikationsteknik (ICT), Material- och nanofysik, Optik och Fotonik, OFO.
    Jacobsen, Gunnar
    KTH, Skolan för informations- och kommunikationsteknik (ICT), Material- och nanofysik.
    Advanced Modulations and DSP Enabling High-speed Coherent Communication Using Large Linewidth Lasers2016Ingår i: 2016 PROGRESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUM (PIERS), IEEE , 2016, s. 4849-4849Konferensbidrag (Refereegranskat)
  • 28.
    Pang, Xiaodan
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab). DLab., INTEC, Ghent University - Imec, Gent, BelgiumDLab., INTEC, Ghent University - Imec, Gent, Belgium.
    Van Kerrebrouck, J.
    Ozolins, O.
    Lin, R.
    Udalcovs, A.
    Zhang, Lu
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Spiga, S.
    Amann, M. C.
    Van Steenberge, G.
    Gan, L.
    Tang, M.
    Fu, S.
    Schatz, R.
    Jacobsen, G.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Liu, D.
    Tong, W.
    Torfs, G.
    Bauwelinck, J.
    Yin, X.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    7×100 Gbps PAM-4 transmission over 1-km and 10-km single mode 7-core fiber using 1.5-μm SM-VCSEL2018Ingår i: 2018 Optical Fiber Communications Conference and Exposition, OFC 2018 - Proceedings, Institute of Electrical and Electronics Engineers (IEEE), 2018, s. 1-3Konferensbidrag (Refereegranskat)
    Abstract [en]

    100 Gbps/λ/core PAM-4 transmission is successfully demonstrated over 1-km and 10-km single mode 7-core fiber links, enabled by directly modulated 1.5-μm single mode VCSEL of 23 GHz modulation bandwidth with pre- and post-digital equalizations. © 2018 OSA.

  • 29.
    Pang, Xiaodan
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Van Kerrebrouck, J.
    Belgium.
    Ozolins, O.
    Lin, Rui
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Udalcovs, A.
    Zhang, Lu
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Spiga, S.
    Germany.
    Amann, M. C.
    Germany.
    Van Steenberge, G.
    Belgium.
    Gan, L.
    China.
    Tang, M.
    China.
    Fu, S.
    China.
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, G.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Liu, D.
    China.
    Tong, W.
    China.
    Torfs, G.
    Belgium.
    Bauwelinck, J.
    Belgium.
    Yin, X.
    Belgium.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    7×100 Gbps PAM-4 transmission over 1-km and 10-km single mode 7-core fiber using 1.5-μm SM-VCSEL2018Ingår i: Optics InfoBase Conference Papers, Optical Society of America, 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    100 Gbps/λ/core PAM-4 transmission is successfully demonstrated over 1-km and 10- km single mode 7-core fiber links, enabled by directly modulated 1.5-μm single mode VCSEL of 23 GHz modulation bandwidth with pre- and post- digital equalizations.

  • 30.
    Pang, Xiaodan
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Van Kerrebrouck, J.
    Belgium.
    Ozolins, O.
    Sweden.
    Lin, Rui
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Udalcovs, A.
    Sweden.
    Zhang, Lu
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Spiga, S.
    Germany.
    Amann, M. C.
    Germany.
    Van Steenberge, G.
    Belgium.
    Gan, L.
    China.
    Tang, M.
    China.
    Fu, S.
    China.
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, G.
    Sweden.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Liu, D.
    China.
    Tong, W.
    China.
    Torfs, G.
    Belgium.
    Bauwelinck, J.
    Belgium.
    Yin, X.
    Belgium.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    High-speed SDM interconnects with directly-modulated 1.5-μm VCSEL enabled by low-complexity signal processing techniques2018Ingår i: Optics InfoBase Conference Papers, OSA - The Optical Society , 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    We report on our recent work in supporting up to 100 Gbps/λ/core transmissions with a directly modulated 1.5-μm single mode VCSEL and multicore fiber, enabled by low-compleixty pre- and post- digital equalizations.

  • 31.
    Pang, Xiaodan
    et al.
    KTH. RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Van Kerrebrouck, Joris
    Univ Ghent, Imec, INTEC, IDLab, Ghent, Belgium..
    Ozolins, Oskars
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Lin, Rui
    KTH. Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Udalcovs, Aleksejs
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Zhang, Lu
    KTH.
    Spiga, Silvia
    Tech Univ Munich, Walter Schottky Inst, Garching, Germany..
    Amann, Markus C.
    Tech Univ Munich, Walter Schottky Inst, Garching, Germany..
    Van Steenberge, Geert
    Univ Ghent, Imec, CMST, Ghent, Belgium..
    Gan, Lin
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Tang, Ming
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Fu, Songnian
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Schatz, Richard
    KTH.
    Jacobsen, Gunnar
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Popov, Sergei
    KTH.
    Liu, Deming
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Tong, Weijun
    Yangtze Opt Fiber & Cable Joint Stock Ltd Co, Wuhan, Hubei, Peoples R China..
    Torfs, Guy
    Univ Ghent, Imec, INTEC, IDLab, Ghent, Belgium..
    Bauwelinck, Johan
    Univ Ghent, Imec, INTEC, IDLab, Ghent, Belgium..
    Yin, Xin
    Univ Ghent, Imec, INTEC, IDLab, Ghent, Belgium..
    Chen, Jiajia
    KTH.
    7x100 Gbps PAM-4 Transmission over 1-km and 10-km Single Mode 7-core Fiber using 1.5-mu m SM-VCSEL2018Ingår i: 2018 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXPOSITION (OFC), Institute of Electrical and Electronics Engineers (IEEE), 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    100 Gbps/lambda/core PAM-4 transmission is successfully demonstrated over 1-km and 10km single mode 7-core fiber links, enabled by directly modulated 1.5-mu m single mode VCSEL of 23 GHz modulation bandwidth with pre-and post-digital equalizations.

  • 32.
    Pang, Xiaodan
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab). Infinera, Fredsborgsgatan 24, Stockholm, SE-117 43, Sweden.
    Zhang, Lu
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Ozolins, Oskars
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Udalcovs, A.
    Lin, Rui
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Schats, Richard
    KTH.
    Xiao, S.
    Hu, W.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, Gunnar
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Chen, Jiajia
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Key technologies to enable terabit-scale digital radio-over-fiber systems2019Ingår i: Broadband Access Communication Technologies XIII, SPIE - International Society for Optical Engineering, 2019, Vol. 10945, artikel-id 109450EKonferensbidrag (Refereegranskat)
    Abstract [en]

    With the approach of the 5G era, stringent requirements are imposed on the data transport solutions, including both of the supported transmission reach and the capacity. Radio-over-fiber technologies are considered to be promising candidates to cope with both aspects, owing to the low-loss and broad-bandwidth nature of the optical fibers. Meanwhile with such optical transport solutions, signals can be collected from the distributed remote radio sites and processed in a centralized manner. In this report, we target on the digital radio-over-fiber systems, and discuss about several key technologies, focusing on the aspects of coding and transmission, which could potentially enable terabit-scale data transport.

  • 33. Rosa, P.
    et al.
    Rizzelli, G.
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Ozolins, O.
    Udalcovs, A.
    Tan, M.
    Sergeyev, S.
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, G.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Ania-Castañón, J. D.
    Unrepeatered 64QAM over SMF-28 using Raman amplification and digital backpropagation2017Ingår i: Optics InfoBase Conference Papers, OSA - The Optical Society , 2017Konferensbidrag (Refereegranskat)
    Abstract [en]

    Unrepeatered transmission over SMF-28 fibre is investigated using Raman based amplification. Experiments and simulations demonstrate a transmission up to 200 km (41 dB) span length using 28Gbaud 64 QAM modulation employing digital back propagation in DSP.

  • 34.
    Udalcovs, A.
    et al.
    Sweden.
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Ozolins, O.
    Sweden.
    Lin, Rui
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Gan, L.
    China.
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Djupsjöbacka, A.
    Sweden.
    Mårtensson, J.
    Sweden.
    Tang, M.
    China.
    Fu, S.
    China.
    Liu, D.
    China.
    Tong, W.
    China.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, G.
    Sweden.
    MCF-enabled self-homodyne 16/64QAM transmission for SDM optical access networks2018Ingår i: Optics InfoBase Conference Papers, OSA - The Optical Society , 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    We experimentally demonstrate a 28-Gbaud circular and square 16/64QAM transmission over a 33.6-km long seven-core fiber with the LO passed through one of the cores for self-homodyne coherent detection employing a low-complexity digital signal processing.

  • 35.
    Udalcovs, Aleksejs
    et al.
    KTH.
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Monti, Paolo
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS.
    Ozolins, Oskars
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Navarro, Julien R. G.
    KTH, Skolan för teknikvetenskap (SCI).
    Kakkar, Aditya
    KTH, Skolan för teknikvetenskap (SCI).
    Louchet, H.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Wosinska, Lena
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Jacobsen, Gunnar
    Quantifying spectral and energy efficiency limitations of WDM networks due to crosstalk in optical nodes2017Ingår i: Optics InfoBase Conference Papers, OSA - The Optical Society , 2017Konferensbidrag (Refereegranskat)
    Abstract [en]

    We demonstrate the significant impact of crosstalk between add and drop ports at optical nodes on energy-efficiency per Hertz in WDM networks employing 32/64 Gbd DP-16QAM transmission, especially when the isolation is reduced to 30dB.

  • 36.
    Van Kerrebrouck, J.
    et al.
    Univ Ghent, Imec, INTEC, IDLab, Ghent, Belgium..
    Zhang, Lijia
    KTH. Shanghai Jiao Tong Univ, SE IEE, Shanghai, Peoples R China..
    Lin, Rui
    KTH.
    Pang, Xiaodan
    KTH. RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Udalcovs, A.
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Ozolins, O.
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Spiga, S.
    Walter Schottky Inst, Coulombwall 4, Garching, Germany..
    Amann, M. C.
    Walter Schottky Inst, Coulombwall 4, Garching, Germany..
    Van Steenberge, G.
    Univ Ghent, Imec, INTEC, CMST, Ghent, Belgium..
    Gan, L.
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Tang, M.
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Fu, S.
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Schatz, Richard
    KTH.
    Popov, Sergei
    KTH.
    Liu, D.
    Huazhong Univ Sci & Technol, Wuhan, Hubei, Peoples R China..
    Tong, W.
    Yangtze Opt Fiber & Cable Joint Stock Ltd Co, Wuhan, Hubei, Peoples R China..
    Xiao, S.
    Shanghai Jiao Tong Univ, SE IEE, Shanghai, Peoples R China..
    Torfs, G.
    Univ Ghent, Imec, INTEC, IDLab, Ghent, Belgium..
    Chen, Jiajia
    KTH.
    Bauwelinck, J.
    Univ Ghent, Imec, INTEC, IDLab, Ghent, Belgium..
    Yin, X.
    Univ Ghent, Imec, INTEC, IDLab, Ghent, Belgium..
    726.7-Gb/s 1.5-mu m Single-Mode VCSEL Discrete Multi-Tone Transmission over 2.5-km Multicore Fiber2018Ingår i: 2018 Optical Fiber Communications Conference and Exposition, OFC 2018 - Proceedings, Institute of Electrical and Electronics Engineers (IEEE), 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    A 107Gb/s net-rate DMT optical signal was generated using a single-mode long-wavelength VCSEL with a modulation bandwidth of 23GHz. We experimentally demonstrated a total net-rate up to 726.7Gb/s at 1.5 mu m over 2.5km 7-core dispersion-uncompensated MCF.

  • 37. Van Kerrebrouck, J.
    et al.
    Zhang, Lu
    KTH, Skolan för informations- och kommunikationsteknik (ICT). Shanghai Jiao Tong University, Shanghai, China.
    Lin, Rui
    KTH, Skolan för informations- och kommunikationsteknik (ICT). uazhong University of Science and Technology, Wuhan, China.
    Pang, Xiaodan
    Networking and Transmission Laboratory, RISE Acreo AB, Kista, Sweden.
    Udalcovs, A.
    Ozolins, O.
    Spiga, S.
    Amann, M. C.
    Van Steenberge, G.
    Gan, L.
    Tang, M.
    Fu, S.
    Schatz, Richard
    KTH, Skolan för informations- och kommunikationsteknik (ICT).
    Popov, Sergei
    KTH, Skolan för informations- och kommunikationsteknik (ICT).
    Liu, D.
    Tong, W.
    Xiao, S.
    Torfs, G.
    Chen, Jia
    KTH, Skolan för informations- och kommunikationsteknik (ICT).
    Bauwelinck, J.
    Yin, X.
    726.7-Gb/s 1.5-μm single-mode VCSEL discrete multi-tone transmission over 2.5-km multicore fiber2018Ingår i: Optics InfoBase Conference Papers, Optics Info Base, Optical Society of America, 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    A 107Gb/s net-rate DMT optical signal was generated using a single-mode longwavelength VCSEL with a modulation bandwidth of 23GHz. We experimentally demonstrated a total net-rate up to 726.7Gb/s at 1.5μm over 2.5km 7-core dispersion-uncompensated MCF.

  • 38.
    Van Kerrebrouck, Joris
    et al.
    Univ Ghent, IMEC, IDLab, Dept Informat Technol, B-9000 Ghent, Belgium..
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Ozolins, Oskars
    RISE Acreo AB, NETLAB, S-16425 Kista, Sweden..
    Lin, Rui
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Udalcovs, Aleksejs
    RISE Acreo AB, NETLAB, S-16425 Kista, Sweden..
    Zhang, Lu
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Li, Haolin
    Univ Ghent, IMEC, IDLab, Dept Informat Technol, B-9000 Ghent, Belgium..
    Spiga, Silvia
    Tech Univ Munich, Walter Schottky Inst, D-85748 Garching, Germany..
    Amann, Markus-Christian
    Tech Univ Munich, Walter Schottky Inst, D-85748 Garching, Germany..
    Gan, Lin
    Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China..
    Tang, Ming
    Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China..
    Fu, Songnian
    Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China..
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, Gunnar
    RISE Acreo AB, NETLAB, S-16425 Kista, Sweden..
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Liu, Deming
    Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China..
    Tong, Weijun
    Yangtze Opt Fibre & Cable Co Ltd, Wuhan 430073, Hubei, Peoples R China..
    Torfs, Guy
    Univ Ghent, IMEC, IDLab, Dept Informat Technol, B-9000 Ghent, Belgium..
    Bauwelinck, Johan
    Univ Ghent, IMEC, IDLab, Dept Informat Technol, B-9000 Ghent, Belgium..
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Yin, Xin
    Univ Ghent, IMEC, IDLab, Dept Informat Technol, B-9000 Ghent, Belgium..
    High-Speed PAM4-Based Optical SDM Interconnects With Directly Modulated Long-Wavelength VCSEL2019Ingår i: Journal of Lightwave Technology, ISSN 0733-8724, E-ISSN 1558-2213, Vol. 37, nr 2, s. 356-362Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This paper reports the demonstration of high-speed PAM-4 transmission using a 1.5-mu m single-mode vertical cavity surface emitting laser (SM-VCSEL) over multicore fiber with 7 cores over different distances. We have successfully generated up to 70 Gbaud 4-level pulse amplitude modulation (PAM-4) signals with a VCSEL in optical back-to-back, and transmitted 50 Gbaud PAM-4 signals over both 1-km dispersion-uncompensated and 10-km dispersion-compensated in each core, enabling a total data throughput of 700 Gbps over the 7-core fiber. Moreover, 56 Gbaud PAM-4 over 1-km have also been shown, whereby unfortunately not all cores provide the required 3.8 x 10(-3) bit error rate (BER) for the 7% overhead-hard decision forward error correction (7% OH-HDFEC). The limited bandwidth of the VCSEL and the adverse chromatic dispersion of the fiber are suppressed with preequalization based on accurate end-to-end channel characterizations. With a digital postequalization, BER performance below the 7% OH-HDFEC limit is achieved over all cores. The demonstrated results show a great potential to realize high-capacity and compact short-reach optical interconnects for data centers.

  • 39.
    Zhang, Lu
    et al.
    KTH, Skolan för informations- och kommunikationsteknik (ICT). State Key Laboratory of Advanced Optical Communication System and Networks, Shanghai Jiao Tong University, Shanghai 200240, China.
    Hong, Xuezhi
    KTH, Skolan för informations- och kommunikationsteknik (ICT). MOE International Laboratory for Optical Information Technologies, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China.
    Pang, Xiaodan
    KTH, Skolan för informations- och kommunikationsteknik (ICT). Networking and Transmission Laboratory, RISE Acreo AB, Kista 16425, Sweden.
    Ozolins, Oskars
    Udalcovs, Aleksejs
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Optik och Fotonik, OFO.
    Guo, Changjian
    Zhang, Junwei
    Nordwall, Fredrik
    Engenhardt, Klaus M.
    Westergren, Urban
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Optik och Fotonik, OFO.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Optik och Fotonik, OFO.
    Jacobsen, Gunnar
    Xiao, Shilin
    Hu, Weisheng
    Chen, Jiajia
    KTH, Skolan för informations- och kommunikationsteknik (ICT), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab). MOE International Laboratory for Optical Information Technologies, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China.
    Nonlinearity-aware 200 Gbit/s DMT transmission for C-band short-reach optical interconnects with a single packaged electro-absorption modulated laser2018Ingår i: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 43, nr 2, s. 182-185Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We experimentally demonstrate the transmission of a 200 Gbit/s discrete multitone (DMT) at the soft forward error correction limit in an intensity-modulation directdetection system with a single C-band packaged distributed feedback laser and traveling-wave electro absorption modulator (DFB-TWEAM), digital-to-analog converter and photodiode. The bit-power loaded DMT signal is transmitted over 1.6 km standard single-mode fiber with a net rate of 166.7 Gbit/s, achieving an effective electrical spectrum efficiency of 4.93 bit/s/Hz. Meanwhile, net rates of 174.2 Gbit/s and 179.5 Gbit/s are also demonstrated over 0.8 km SSMF and in an optical back-to-back case, respectively. The feature of the packaged DFB-TWEAM is presented. The nonlinearity-aware digital signal processing algorithm for channel equalization is mathematically described, which improves the signal-to-noise ratio up to 3.5 dB. 

  • 40.
    Zhang, Lu
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Ozolins, O.
    Lin, Rui
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Udalcovs, Aleksejs
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Gan, L.
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Djupsjobacka, A.
    Martensson, J.
    Westergren, Urban
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Tang, M.
    Fu, S.
    Liu, D.
    Tong, W.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, G.
    Hu, W.
    Xiao, S.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Kernel Adaptive Filtering for Nonlinearity-Tolerant Optical Direct Detection Systems2018Ingår i: European Conference on Optical Communication, ECOC, Institute of Electrical and Electronics Engineers Inc. , 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    Kernel adaptive filtering (KAF) is proposed for nonlinearity-tolerant optical direct detection. for 7× 128 Gbit/s PAM4 transmission over 33.6km 7-core-fiber, KAF only needs 10 equalizer taps to reach KP4-FEC limit (BER@2.2e-4), whereas decision-feedback-equalizer needs 43 equalizer taps to reach HD-FEC limit (BER@3.8e-3).

  • 41.
    Zhang, Lu
    et al.
    KTH. Shanghai Jiao Tong University, China.
    Pang, Xiaodan
    KTH. RISE Acreo AB, Sweden.
    Ozolins, O.
    Udalcovs, A.
    Popov, Sergei
    KTH.
    Xiao, S.
    Chen, Jiajia
    KTH.
    K-means clustering based multi-dimensional quantization scheme for digital mobile fronthaul2018Ingår i: Optics InfoBase Conference Papers, Optics Info Base, Optical Society of America, 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    We propose to group highly-correlated neighboring samples into multi-dimensional vectors and adopt k-means clustering for quantization in mobile fronthaul. 30-Gbit/s transmissions have been experimentally demonstrated for up to 40 100MHz LTE channels over 20km fiber.

  • 42.
    Zhang, Lu
    et al.
    KTH, Skolan för informations- och kommunikationsteknik (ICT). Shanghai Jiao Tong University, Shanghai, China.
    Pang, Xiaodan
    KTH, Skolan för informations- och kommunikationsteknik (ICT). RISE Acreo AB, Kista, Sweden.
    Ozolins, O.
    Udalcovs, A.
    Schatz, Richard
    KTH, Skolan för informations- och kommunikationsteknik (ICT).
    Westergren, Urban
    KTH, Skolan för informations- och kommunikationsteknik (ICT).
    Jacobsen, G.
    Popov, Sergei
    KTH, Skolan för informations- och kommunikationsteknik (ICT).
    Xiao, S.
    Chen, Jiajia
    KTH, Skolan för informations- och kommunikationsteknik (ICT).
    15-Gbaud PAM4 Digital Mobile Fronthaul with Enhanced Differential Pulse Coding Modulation Supporting 122 LTE-A Channels with up to 4096QAM2018Ingår i: 2017 European Conference on Optical Communication (ECOC), Institute of Electrical and Electronics Engineers (IEEE), 2018, s. 1-3Konferensbidrag (Refereegranskat)
    Abstract [en]

    By employing enhanced DPCM, 15-Gbaud PAM4 digital mobile fronthaul is experimentally demonstrated to support 122 LTE-A channels with up to 4096QAM. Compared to PCM based CPRI, the supported number of channels increases 5 times and EVM is obviously improved.

  • 43.
    Zhang, Lu
    et al.
    KTH. Shanghai Jiao Tong Univ, State Key Lab Adv Opt Commun Syst & Networks, Shanghai, Peoples R China..
    Pang, Xiaodan
    KTH. RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Ozolins, Oskars
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Udalcovs, Aleksejs
    RISE Acreo AB, Networking & Transmiss Lab, Kista, Sweden..
    Popov, Sergei
    KTH.
    Xiao, Shilin
    Shanghai Jiao Tong Univ, State Key Lab Adv Opt Commun Syst & Networks, Shanghai, Peoples R China..
    Chen, Jiajia
    KTH.
    K-means Clustering based Multi-Dimensional Quantization Scheme for Digital Mobile Fronthaul2018Ingår i: 2018 Optical Fiber Communications Conference and Exposition, OFC 2018 - Proceedings, Institute of Electrical and Electronics Engineers (IEEE), 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    We propose to group highly-correlated neighboring samples into multi-dimensional vectors and adopt k-means clustering for quantization in mobile fronthaul. 30-Gbit/s transmissions have been experimentally demonstrated for up to 40 100MHz LTE channels over 20km fiber.

  • 44.
    Zhang, Lu
    et al.
    KTH. Shanghai Jiao Tong University, Shanghai, China.
    Pang, Xiaodan
    KTH. RISE Acreo AB, Networking & Transmiss Lab, S-16425 Kista, Sweden.
    Ozolins, Oskars
    Udalcovs, Aleksejs
    Popov, Sergei
    Xiao, Shilin
    Hu, Weisheng
    Chen, Jiajia
    KTH. South China Normal Univ, South China Acad Adv Optoelect, MOE Int Lab Opt Informat Technol, Guangzhou 510006, Guangdong, Peoples R China.
    Spectrally efficient digitized radio-over-fiber system with k-means clustering-based multidimensional quantization.2018Ingår i: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 43, nr 7, s. 1546-1549Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We propose a spectrally efficient digitized radio-over-fiber (D-RoF) system by grouping highly correlated neighboring samples of the analog signals into multidimensional vectors, where the k-means clustering algorithm is adopted for adaptive quantization. A 30  Gbit/s D-RoF system is experimentally demonstrated to validate the proposed scheme, reporting a carrier aggregation of up to 40 100 MHz orthogonal frequency division multiplexing (OFDM) channels with quadrate amplitude modulation (QAM) order of 4 and an aggregation of 10 100 MHz OFDM channels with a QAM order of 16384. The equivalent common public radio interface rates from 37 to 150  Gbit/s are supported. Besides, the error vector magnitude (EVM) of 8% is achieved with the number of quantization bits of 4, and the EVM can be further reduced to 1% by increasing the number of quantization bits to 7. Compared with conventional pulse coding modulation-based D-RoF systems, the proposed D-RoF system improves the signal-to-noise-ratio up to ∼9  dB and greatly reduces the EVM, given the same number of quantization bits.

  • 45.
    Zhang, Lu
    et al.
    KTH, Skolan för informations- och kommunikationsteknik (ICT), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab). State Key Laboratory of Advanced Optical Communication System and Networks, Shanghai Jiao Tong University, Shanghai, China.
    Pang, Xiaodan
    KTH, Skolan för informations- och kommunikationsteknik (ICT), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab). Networking and Transmission Laboratory, RISE Acreo AB, Kista, Sweden.
    Ozolins, Oskars
    Udalcovs, Aleksejs
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI).
    Westergren, Urban
    KTH, Skolan för teknikvetenskap (SCI).
    Jacobsen, Gunnar
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI).
    Wosinska, Lena
    KTH, Skolan för informations- och kommunikationsteknik (ICT), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Xiao, Shilin
    Hu, Weisheng
    Chen, Jiajia
    KTH, Skolan för informations- och kommunikationsteknik (ICT), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Digital mobile fronthaul employing differential pulse code modulation with suppressed quantization noise2017Ingår i: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 25, nr 25, s. 31921-31936Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A differential pulse code modulation (DPCM) based digital mobile fronthaul architecture is proposed and experimentally demonstrated. By using a linear predictor in the DPCM encoding process, the quantization noise can be effectively suppressed and a prediction gain of 7 similar to 8 dB can be obtained. Experimental validation is carried out with a 20 km 15-Gbaud/lambda 4-level pulse amplitude modulation (PAM4) intensity modulation and direct detection system. The results verify the feasibility of supporting 163, 122, 98, 81 20-MHz 4, 16, 64, 256 QAM based antenna-carrier (AxC) containers with only 3, 4, 5, 6 quantization bits at a sampling rate of 30.72MSa/s in LTE-A environment. Further increasing the number of quantization bits to 8 and 9, 1024 quadrature amplitude modulation (1024 QAM) and 4096 QAM transmission can be realized with error vector magnitude (EVM) lower than 1% and 0.5%, respectively. The supported number of AxCs in the proposed DPCM-based fronthaul is increased and the EVM is greatly reduced compared to the common public radio interface (CPRI) based fronthaul that uses pulse code modulation. Besides, the DPCM-based fronthaul is also experimentally demonstrated to support universal filtered multicarrier signal that is one candidate waveform for the 5th generation mobile systems.

  • 46.
    Zhang, Lu
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Udalcovs, Aleksejs
    Lin, Rui
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Ozolins, Oskars
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Gan, L.
    Schatz, Richard
    KTH, Tidigare Institutioner (före 2005), Elektronik. KTH, Tidigare Institutioner (före 2005), Mikroelektronik och informationsteknik, IMIT. KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Djupsjöbacka, A.
    Mårtensson, J.
    Tang, M.
    Fu, S.
    Liu, D.
    Tong, W.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, Gunnar
    Hu, W.
    Xiao, S.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Digital Radio-Over-Multicore-Fiber System with Self-Homodyne Coherent Detection and Entropy Coding for Mobile Fronthaul2018Ingår i: European Conference on Optical Communication, ECOC, Institute of Electrical and Electronics Engineers Inc. , 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    We experimentally demonstrate a 28-Gbaud 16-QAM self-homodyne digital radio-over-33.6km-7-core-fiber system with entropy coding for mobile fronthaul, achieving error-free carrier aggregation of 330 100-MHz 4096-QAM 5G-new-radio channels and 921 100-MHz QPSK 5G-new-radio channels with CPRI-equivalent data rate up to 3.73-Tbit/s.

  • 47.
    Zhang, Lu
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Van Kerrebrouck, J.
    Ozolins, O.
    Lin, Rui
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Udalcovs, A.
    Spiga, S.
    Amann, M. C.
    Gan, L.
    Tang, M.
    Fu, S.
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Jacobsen, G.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Liu, D.
    Tong, W.
    Torfs, G.
    Bauwelinck, J.
    Yin, X.
    Xiao, S.
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Experimental Demonstration of 503.61-Gbit/s DMT over 10-km 7-Core Fiber with 1.5μm SM-VCSEL for Optical Interconnects2018Ingår i: European Conference on Optical Communication, ECOC, Institute of Electrical and Electronics Engineers Inc. , 2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    We experimentally demonstrate a net-rate 503.61-Gbit/s discrete multitone (DMT) transmission over 10-km 7-core fiber with 1.5μm single mode VCSEL, where low-complexity kernel-recursive-least-squares algorithm is employed for nonlinear channel equalization.

  • 48.
    Zhang, Lu
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Van Kerrebrouck, Joris
    Univ Ghent, IMEC, IDLab, Dept Informat Technol, B-9000 Ghent, Belgium..
    Lin, Rui
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Pang, Xiaodan
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Udalcovs, Aleksejs
    RISE Acreo AB, NETLAB, SE-16425 Kista, Sweden..
    Ozolins, Oskars
    RISE Acreo AB, NETLAB, SE-16425 Kista, Sweden..
    Spiga, Silvia
    Tech Univ Munich, Walter Schottky Inst, D-85748 Garching, Germany..
    Amann, Markus-Christian
    Tech Univ Munich, Walter Schottky Inst, D-85748 Garching, Germany..
    Van Steenberge, Geert
    Univ Ghent, IMEC, Ctr Microsyst Technol, B-9052 Ghent, Belgium..
    Gan, Lin
    Huazhong Univ Sci & Technol, WNLO, Wuhan 430074, Hubei, Peoples R China..
    Tang, Ming
    Huazhong Univ Sci & Technol, WNLO, Wuhan 430074, Hubei, Peoples R China..
    Fu, Songnian
    Huazhong Univ Sci & Technol, WNLO, Wuhan 430074, Hubei, Peoples R China..
    Schatz, Richard
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Popov, Sergei
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Fotonik.
    Liu, Deming
    Huazhong Univ Sci & Technol, WNLO, Wuhan 430074, Hubei, Peoples R China..
    Tong, Weijun
    Yangtze Opt Fibre & Cable Co Ltd YOFC, Wuhan 430073, Hubei, Peoples R China..
    Xiao, Shilin
    Shanghai Jiao Tong Univ, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China..
    Torfs, Guy
    Univ Ghent, IMEC, IDLab, Dept Informat Technol, B-9000 Ghent, Belgium..
    Chen, Jiajia
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Kommunikationssystem, CoS, Optical Network Laboratory (ON Lab).
    Bauwelinck, Johan
    Univ Ghent, IMEC, IDLab, Dept Informat Technol, B-9000 Ghent, Belgium..
    Yin, Xin
    Univ Ghent, IMEC, IDLab, Dept Informat Technol, B-9000 Ghent, Belgium..
    Nonlinearity Tolerant High-Speed DMT Transmission With 1.5-mu m Single-Mode VCSEL and Multi-Core Fibers for Optical Interconnects2019Ingår i: Journal of Lightwave Technology, ISSN 0733-8724, E-ISSN 1558-2213, Vol. 37, nr 2, s. 380-388Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We experimentally demonstrate the generation of 107-Gbit/s net-rate optical discrete multitone signal using a 1.5-mu m single-mode vertical cavity surface emitting laser (VCSEL) with modulation bandwidth of 22 GHz. Utilizing a nonlinearity-tolerant channel equalization algorithm for digital signal processing, total net-rates of 726.6-Gbit/s over 2.5-km dispersion-uncompensated 7-core fiber and 533.1-Gbit/s over 10-km dispersion-compensated 7-core fiber below 7% overhead hard-decision forward error correction limit have been experimentally achieved with a 1.5-mu m VCSEL-based intensity-modulation direct-detection system. The features of the 1.5-mu m single-mode VCSEL, 2.5-km/10km multi-core fibers, and fan-in/fan-out modules are presented. Besides, the Volterra series-based nonlinearity-tolerant channel equalization algorithm, which improves the signal-to-noise ratio with more than 5 dB, is mathematically described and experimentally validated. The results have demonstrated that 1.5-mu m single-mode VCSEL and multi-core-fiber-based transmission can be a promising candidate to solve the capacity challenges in short-reach optical interconnects.

1 - 48 av 48
RefereraExporteraLänk till träfflistan
Permanent länk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf