Open AccessFilter-free wavelength converter using Sagnac loop and delayed interferometer
Author(s) -
Kiichiro Tsuji,
Teppei Yamaguchi,
Noriaki Onodera,
M. Saruwatari
Publication year - 2006
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.14.000575
Subject(s) - optics , interferometry , signal (programming language) , physics , band pass filter , comb filter , filter (signal processing) , optical filter , wavelength , modulation (music) , cross phase modulation , phase modulation , computer science , acoustics , phase noise , computer vision , programming language
A filter-free fiber-XPM-based wavelength converter is proposed and experimentally demonstrated without conventional bandpass optical filters used to filter out the converted signal. The converter is constructed with a propagation-diversity Sagnac loop to separate a converted signal from a pump signal and a delayed interferometer to covert the XPM signal into intensity modulation. We show that 10-Gbit/s input signals are successfully converted to signals with allotted wavelengths by our proposed scheme.