Compact InP-Based DFB-EAM Enabling PAM-4 112 Gb/s Transmission Over 2 km

We demonstrate a 56-GBd pulse-amplitude modulation-4 compact InP transmitter module integrating a distributed feedback laser and an electro-absorption modulator, which exhibits 50-GHz bandwidth, >13-dB extinction ratio and up to 1.5-mW output power. Successful amplifier-free 112-Gb/s transmission...

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Bibliographic Details
Published in:	Journal of lightwave technology Vol. 34; no. 7; pp. 1572 - 1578
Main Authors:	Mestre, Miquel Angel, Mardoyan, Haik, Caillaud, Christophe, Rios-Muller, Rafael, Renaudier, Jeremie, Jenneve, Philippe, Blache, Fabrice, Pommereau, Frederic, Decobert, Jean, Jorge, Filipe, Charbonnier, Philippe, Konczykowska, Agnieszka, Dupuy, Jean-Yves, Mekhazni, Karim, Paret, Jean-Francois, Faugeron, Michael, Mallecot, Frank, Achouche, Mohand, Bigo, Sebastien
Format:	Journal Article
Language:	English
Published:	New York IEEE 01-04-2016 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:	Bandwidth Bit error rate datacenter DFB direct-detection EAM Equalizers Extinction ratio Modulation Optical transmitters PAM-4 Receivers Datacenter direct-detection electro-absorption modulator (EAM) pulse-amplitude modulation (PAM)-4 distributed feedback laser (DFB)
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Summary:	We demonstrate a 56-GBd pulse-amplitude modulation-4 compact InP transmitter module integrating a distributed feedback laser and an electro-absorption modulator, which exhibits 50-GHz bandwidth, >13-dB extinction ratio and up to 1.5-mW output power. Successful amplifier-free 112-Gb/s transmission is performed over 2 km using low complexity three-taps equalization. We also study the tradeoff between receiver bandwidth, equalizer length and performance, and show successful signal recovery with bandwidths as low as 18 GHz when increasing the equalizer length.
ISSN:	0733-8724 1558-2213
DOI:	10.1109/JLT.2015.2508677