Study of precise optical modulation using Mach-Zehnder interferometers for advanced modulation formats

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

We investigated impact of parasitic phase modulation at Mach-Zehnder modulators on advanced modulation formats, such as quadrature-amplitude-modulation. Phase error due to imbalance in a modulator can be compensated by using an optical frequency-shift-keying modulator.