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DAC-less PAM-4 generation in the O-band using a silicon Mach-Zehnder modulator
Univ Paris Sud, Univ Paris Saclay, CNRS, Ctr Nanosci & Nanotechnol, F-91120 Palaiseau, France..
Univ Rennes, CNRS, FOTON, UMR 6082, F-22305 Lannion, France..
Univ Paris Sud, Univ Paris Saclay, CNRS, Ctr Nanosci & Nanotechnol, F-91120 Palaiseau, France.;Univ Politecn Valencia, ITEAM Res Inst, Camino Vera S-N, E-46022 Valencia, Spain..
ST Microelect, 850 Rue Jean Monnet, F-38920 Crolles, France..
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2019 (English)In: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 27, no 7, p. 9740-9748Article in journal (Refereed) Published
Abstract [en]

We demonstrate 20-Gb/s 4-level pulse amplitude modulation (PAM-4) signal generation using a silicon Mach-Zehnder modulator (MZM) in the O-band. The modulator is driven by two independent binary streams. and the PAM-4 signal is thus generated directly on the chip, avoiding the use of power-hungry digital-to-analog converters (DACs). With optimized amplitude levels of the binary signals applied to the two arms of the MZM, a pre-forward error correction (FEC) bit-error rate (BER) as low as 7.6 x 10(-7) is obtained. In comparison with a commercially available LiNbO3 modulator, the penalty is only 2 dB at the KP4 FEC threshold of 2.2 x 10(-4).

Place, publisher, year, edition, pages
OPTICAL SOC AMER , 2019. Vol. 27, no 7, p. 9740-9748
National Category
Atom and Molecular Physics and Optics
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URN: urn:nbn:se:kth:diva-252407DOI: 10.1364/OE.27.009740ISI: 000466708200039PubMedID: 31045123Scopus ID: 2-s2.0-85064404091OAI: oai:DiVA.org:kth-252407DiVA, id: diva2:1337605
Note

QC 20190716

Available from: 2019-07-16 Created: 2019-07-16 Last updated: 2019-07-16Bibliographically approved

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Ozolins, Oskars

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