Title :
Polarisation independent tunable liquid-crystal Fabry-Perot interferometer filter module with double-pass configuration
Author :
Tsuda, H. ; Yoshizawa, T. ; Kurokawa, T.
Author_Institution :
NTT Opto-Electron. Labs., Kanagawa, Japan
fDate :
5/11/1995 12:00:00 AM
Abstract :
A novel tunable liquid-crystal Fabry-Perot interferometer (LC-FPI) filter module with a Faraday rotator and double-pass configuration has been fabricated. The filter module has a 3 dB bandwidth of ~0.4 nm, a 20 dB bandwidth of 1.5 nm, and a polarisation dependent loss (PDL) <0.8 dB over a tuning range of 56 nm. More than 49 dB isolation from the output port to the input port has been achieved
Keywords :
Fabry-Perot interferometers; Faraday effect; electro-optical filters; interference filters; liquid crystal devices; optical communication equipment; tuning; wavelength division multiplexing; 0.8 dB; Fabry-Perot interferometer; Faraday rotator; WDM networks; double-pass configuration; filter module; polarisation independent type; tunable liquid-crystal interferometer;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950541
