Comparison of 40GHz optical demultiplexers using SMZ switch and EA modulator in 160Gbit/s-500km OTDM transmission

Toshihiko Hirooka; Takashi Kumakura; Kou Osawa; Masataka Nakazawa

doi:10.1587/elex.3.397

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Comparison of 40GHz optical demultiplexers using SMZ switch and EA modulator in 160Gbit/s-500km OTDM transmission

Toshihiko Hirooka, Takashi Kumakura, Kou Osawa, Masataka Nakazawa

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Keywords: ultrahigh-speed optical transmission, optical time division multiplexing, optical demultiplexing, symmetric Mach-Zehnder switch, electro-absorption modulator, time-domain optical Fourier transformation

JOURNAL FREE ACCESS

2006 Volume 3 Issue 17 Pages 397-403

DOI https://doi.org/10.1587/elex.3.397

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Abstract

We compare two types of optical demultiplexers, one with a symmetric Mach-Zehnder (SMZ) switch and the other with an electro-absorption modulator (EAM), when used for 160Gbit/s (4 × 40Gbit/s) OTDM transmission over 500km. By combining the SMZ switch with a time-domain optical Fourier transformation technique, we succeeded in obtaining slightly better bit-error rate performance than with the EAM.

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