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DAC-less PAM-4 generation in the O-band using a silicon Mach-Zehnder modulator
CNRS Univ Paris-Sud, France.
CNSR Univ Rennes, France.
CNRS Univ Paris-Sud, France; Universitat Politècnica de València, Spain.
ST Microelectronics, 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 × 10 −7 is obtained. In comparison with a commercially available LiNbO 3 modulator, the penalty is only 2 dB at the KP4 FEC threshold of 2.2 × 10 −4

Place, publisher, year, edition, pages
OSA - The Optical Society , 2019. Vol. 27, no 7, p. 9740-9748
Keywords [en]
Bit error rate, Digital to analog conversion, Error correction, Forward error correction, Light modulation, Lithium compounds, Niobium compounds, Pulse amplitude modulation, Silicon, 4-level, Binary signals, Binary streams, LiNbO3 modulator, Mach Zehnder modulator, Signal generation, Light modulators
National Category
Computer and Information Sciences
Identifiers
URN: urn:nbn:se:ri:diva-38384DOI: 10.1364/OE.27.009740Scopus ID: 2-s2.0-85064404091OAI: oai:DiVA.org:ri-38384DiVA, id: diva2:1313828
Note

 Funding details: H2020 LEIT Information and Communication Technologies, ICT, H2020-ICT-27-2015-688516; Funding text 1: H2020 LEIT Information and Communication Technologies European project Cosmicc (H2020-ICT-27-2015-688516).

Available from: 2019-05-06 Created: 2019-05-06 Last updated: 2019-05-06Bibliographically approved

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CiteExportLink to record
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  • apa
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