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Waveform restoration in semiconductor optical amplifier using fiber loop mirror

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5 Author(s)
Kit Chan ; Dept. of Inf. Eng., Chinese Univ. of Hong Kong, China ; Chun-Kit Chan ; Wai Hung ; F. Tong
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In this letter, we present a simple and effective interferometric approach for waveform restoration in a semiconductor optical amplifier (SOA) using a fiber loop mirror. Pattern-dependent distortion caused by gain dynamics of the SOA can be compensated. With our scheme, an enhanced input power dynamic range of 7 dB was achieved. For data sequences with different pattern lengths, both significant waveform and extinction ratio improvement were obtained.

Published in:

IEEE Photonics Technology Letters  (Volume:14 ,  Issue: 7 )