Open AccessDigitally tunable optical filter based on DWDM thin film filters and semiconductor optical amplifiers
Author(s) -
Xinwan Li,
Jianping Chen,
G.X. Wu,
Ailun Ye
Publication year - 2005
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.13.001346
Subject(s) - wavelength division multiplexing , optical amplifier , passband , optics , optical filter , materials science , filter (signal processing) , optoelectronics , band pass filter , optical performance monitoring , optical switch , multiplexing , wavelength , computer science , telecommunications , physics , laser , computer vision
We demonstrate a novel digitally tunable optical filter, which is based on dense wavelength division multiplexed (DWDM) thin film filters and semiconductor optical amplifiers (SOA). It has the advantages of fast tuning speed, large tuning range, good temperature stability, simple control mechanism. It is also scalable without bringing additional insertion loss. The passband wavelengths are in consistency with those suggested by ITUT.