NRZ, DB, and DMT performance for short-reach VCSEL-based optical interconnects

Lukasz Chorchos; Nikolay Ledentsov Jr.; Oleg Makarov; Philipp Scholz; Urs Hecht; Christoph Kottke; Volker Jungnickel; Ronald Freund; Vitaly A. Shchukin; Vladimir P. Kalosha; Jarosław P. Turkiewicz; Friedel Gerfers; Nikolay Ledentsov

doi:10.1117/12.2578553

5 March 2021 NRZ, DB, and DMT performance for short-reach VCSEL-based optical interconnects

Lukasz Chorchos, Nikolay Ledentsov Jr., Oleg Makarov, Philipp Scholz, Urs Hecht, Christoph Kottke, Volker Jungnickel, Ronald Freund, Vitaly A. Shchukin, Vladimir P. Kalosha, Jarosław P. Turkiewicz, Friedel Gerfers, Nikolay Ledentsov

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Proceedings Volume 11692, Optical Interconnects XXI; 116920D (2021) https://doi.org/10.1117/12.2578553
Event: SPIE OPTO, 2021, Online Only

Abstract

In this paper, we perform a comparison of three modulation formats: NRZ, duo binary and DMT in combination with the state of the art 850 and 910nm VCSELs for their application in short reach high speed optical links. The system for NRZ and DB utilizes feasible for deployment equalization including a 9-tap finite impulse response filter and raised cosine filtering in the transmitter and a 7-tap UI-spaced feed forward equalizer in the receiver. The 100 Gbit/s net link with DB modulation can be realized without applying receiver equalization. For DMT the highest gross data rate of 224 Gbit/s/lambda is achieved.

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Lukasz Chorchos, Nikolay Ledentsov Jr., Oleg Makarov, Philipp Scholz, Urs Hecht, Christoph Kottke, Volker Jungnickel, Ronald Freund, Vitaly A. Shchukin, Vladimir P. Kalosha, Jarosław P. Turkiewicz, Friedel Gerfers, and Nikolay Ledentsov "NRZ, DB, and DMT performance for short-reach VCSEL-based optical interconnects", Proc. SPIE 11692, Optical Interconnects XXI, 116920D (5 March 2021); https://doi.org/10.1117/12.2578553

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