Improved optical single-sideband generation using the self-modulation birefringence difference in semiconductor optical amplifiers.
By employing the self-modulation birefringence difference in a semiconductor optical amplifier (SOA), an improved method is proposed to generate a complete optical single-sideband (OSSB) signal. Over 30 dB sideband suppression ratios (SSRs) of lower OSSB signals are obtained over a 12 dB input power range and a 36 nm wavelength span, with a maximum of over 35 dB. Upper OSSB signals with an SSR of over 15 dB are observed using a SOA for what is believed to be the first time. This method is effective even for the carrier-suppressed signal. The theory for OSSB generation in an SOA is extended and verified by experiment.
Jiang
Huan
H
Department of Electronic Engineering, Tsinghua University, Beijing, China, 100084. jianghuan00@mails.tsinghua.edu.cn
Wen
He
H
Zheng
Xiaoping
X
Liu
Zhigang
Z
Wang
Kai
K
Zhang
Hanyi
H
Guo
Yili
Y