@inproceedings{2533920159eb481da88a78baeddcc19c,
title = "Optical-electrical hybrid signal equalizer for ultra-high-speed transmission",
abstract = "We demonstrate an optical-electrical hybrid equalizer, which comprises an optical domain equalizer fabricated using optical filter banks and an electrical filter in a digital domain by a digital signal processing, to experimentally demodulate degraded 40-Gbaud quadrature phase-shift keying (QPSK) signal. The optical signal-to-noise ratio (OSNR) required for a BER of 1 × 10-3 is improved to 7 dB without an optical equalizer (OEQ) under the back-to-back condition. The fluctuation in the OEQ strength between 0-6 dB will not affect signal quality significantly. The signal degradation caused by the frequency response of devices was minimized using by the hybrid equalizer.",
keywords = "Optical communication, Optical equalizer, Optical transmission system, Quadrature phase-shift keying (QPSK)",
author = "Shinya Maruyama and Kazunari Tomishige and Atsushi Kanno and Tetsuya Kawanishi and Hideyuki Sotobayashi",
year = "2015",
month = jan,
day = "1",
doi = "10.1117/12.2078117",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Srivastava, {Atul K.} and Dingel, {Benjamin B.} and Dutta, {Achyut K.}",
booktitle = "Optical Metro Networks and Short-Haul Systems VII",
note = "Optical Metro Networks and Short-Haul Systems VII ; Conference date: 10-02-2015 Through 12-02-2015",
}