Waveform restoration in semiconductor optical amplifier using fiber loop mirror

Author

Chan, Kit ; Chan, Chun-Kit ; Hung, Wai ; Tong, Frank ; Chen, Lian Kuan

Author_Institution

Dept. of Inf. Eng., Chinese Univ. of Hong Kong, China

Volume

14

Issue

7

fYear

2002

fDate

7/1/2002 12:00:00 AM

Firstpage

995

Lastpage

997

Abstract

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.

Keywords

electro-optical modulation; laser mirrors; light interferometry; optical fibres; optical saturation; semiconductor optical amplifiers; LiNbO/sub 3/ modulator; SOA; data sequence pattern lengths; enhanced input power dynamic range; extinction ratio improvement; fiber loop mirror; gain dynamics; gain saturation; inline amplifier; interferometric approach; pattern-dependent distortion compensation; semiconductor optical amplifier; waveform restoration; Dynamic range; Mirrors; Optical attenuators; Optical distortion; Optical fibers; Optical filters; Optical interferometry; Optical saturation; Semiconductor optical amplifiers; Stimulated emission;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2002.1012410

Filename

1012410