80-Gb/s 256-QAM Signals using Phase Noise and DGD-Tolerant Pilot-Carrier-Aided Homodyne Detection

Conference: ECOC 2007 - 33rd European Conference and Exhibition of Optical Communication
09/16/2007 - 09/20/2007 at Berlin, Germany

Proceedings: ECOC 2007

Pages: 2Language: englishTyp: PDF

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Kamio, Yukiyoshi; Nakamura, Moriya; Miyazaki, Tetsuya (National Institute of Information and Communications Technology (NICT), 4-2-1, Nukui-Kitamachi, Koganei, Tokyo 184-8795, Japan)

We investigated DGD tolerance enhancement for 80-Gb/s signals up to 20 ps by employing pilot-carrieraided self-homodyne detection with 10-Gsymbol/s 256-QAM, instead of 40-Gsymbol/s DQPSK, without using a narrow spectral linewidth light source.