Jpn. J. Appl. Phys. 41 (2002) pp. 1194-1198  |Next Article|  |Table of Contents|
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Monolithically Integrated Parallel-Amplifier Structure for Filter-Free Wavelength Conversion

Yasuo Shibata, Nobuhiro Kikuchi, Satoshi Oku, Toshio Ito, Hiroshi Okamoto, Yoshihiro Kawaguchi, Yasuhiro Suzuki and Yasuhiro Kondo

(Received June 22, 2001; accepted for publication September 10, 2001)

A parallel-amplifier structure (PAS) is proposed for filter-free wavelength conversion based on the cross-gain-modulation of a semiconductor optical amplifier. The PAS is a symmetric Mach-Zehnder interferometer having a polarization insensitive semiconductor optical amplifier in each arm, and was fabricated monolithically by butt-coupling of high-mesa and buried waveguides. Filter-free wavelength conversion in the co-propagative mode is demonstrated at a bit rate of 10 Gbit/s using the fabricated PAS. Clear eye opening and a power penalty as low as 0.9 dB were achieved.

URL: http://jjap.jsap.jp/link?JJAP/41/1194/
DOI: 10.1143/JJAP.41.1194

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