50-Gb/s 16 QAM by a quad-parallel Mach-Zehnder modulator

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

Proceedings: ECOC 2007

Pages: 2Language: englishTyp: PDF

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Sakamoto, Takahide; Chiba, Akito; Kawanishi, Tetsuya (National Institute of Information and Communications Technology, 4-2-1 Nukui-Kita, Koganei, Tokyo 184-8795, Japan)

We fabricated a high-speed quad-parallel Mach-Zehnder LiNbO3 modulator. 12.5-Gbaud (50-Gb/s), 16 QAM was demonstrated, where four binary data streams were electro-optically 16-QAM mapped over a single optical carrier by the superposition of two QPSKs.