Open AccessTheoretical study on non-inverted wavelength conversion based on semiconductor optical amplifier and optical band-pass filter
Author(s) -
Xi Huang,
Chi Zhang,
Jianji Dong,
Yu Zhang,
Dexiu Huang
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.1021
Subject(s) - extinction ratio , optical amplifier , filter (signal processing) , signal (programming language) , optical filter , interferometry , optics , wavelength division multiplexing , wavelength , physics , comb filter , materials science , optoelectronics , computer science , laser , computer vision , programming language
A single semiconductor optical amplifier SOA assisted by optical filter is exploited to realize high-speed all-optical wavelength conversion, in which, the filter is employed to optimize output spectrum. We propose a spectrum optimizer which contains a band pass filter BPF and a delay interferometer DI. Based on this configuration, 80 Gbit/s all-optical non-inverted conversion has been numerically simulated. Furthermore, the quality of output signal has been improved greatly using genetic algorithms to optimize the parameters of the spectrum optimizer. Additionallythe effect of ultra-fast carrier dynamics in SOA on the output signal is analyzed theoretically. The dependence of the signal extinction ratio ER and pattern effect PE on variations of the BPF’s ER and DI’s ER is also studied.