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Field trial over 820 km installed SSMF and its potential Terabit/s superchannel application with up to 57.5-Gbaud DP-QPSK transmission
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO. Tianjin University, China.
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics. Acreo Swedish.
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO.
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2015 (English)In: Optics Communications, ISSN 0030-4018, E-ISSN 1873-0310, Vol. 353, 133-138 p., 20166Article in journal (Refereed) Published
Abstract [en]

In this paper, we report the result of a field trial of 56-Gbaud (224-Gbit/s) and 57.5-Gbaud (230-Gbit/s) dual-polarization quadrature phase shift keying (DP-QPSK) coherent optical transmission over 820 km installed standard single mode fiber (SSMF). Offline digital signal processing (DSP) was applied for signal recovery and bit-error-rate (BER) counting in our field trial experiments, and BER performance well below the 7% overhead hard-decision forward error correction (FEC) error-free threshold (4.5×10-3) at 231-1 pseudo random bit sequence (PRBS) pattern length has been achieved, with the best achievable BERs of 2×10-4 (56-Gbaud) and 3×10-4 (57.5-Gbaud), respectively. In parallel a 1.15-Tbit/s (5×230-Gbit/s) quasi-Nyquist spaced wavelength division multiplexing (WDM) superchannel transmission over the same 820 km optical field link (FL) was also investigated through numerical simulations based on the same 57.5-Gbaud DP-QPSK signal using 1% roll-off Nyquist pulse shaping with 60-GHz channel spacing, and the results indicate that the BER performance well below the 7% overhead hard-decision FEC error-free threshold (4.5×10-3) for the 1.15-Tbit/s DP-QPSK superchannel transmission can be achieved.

Place, publisher, year, edition, pages
2015. Vol. 353, 133-138 p., 20166
Keyword [en]
Coherent optical transmission Digital signal processing Field trial Optical fiber communication Quadrature phase shift keying
National Category
Other Engineering and Technologies
Identifiers
URN: urn:nbn:se:kth:diva-170189DOI: 10.1016/j.optcom.2015.05.029ISI: 000357552500021Scopus ID: 2-s2.0-84929997146OAI: oai:DiVA.org:kth-170189DiVA: diva2:827660
Funder
Knut and Alice Wallenberg Foundation
Note

QC 20150629

Available from: 2015-06-29 Created: 2015-06-29 Last updated: 2017-12-04Bibliographically approved

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Schatz, Richard

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