Title :
Broad-passband-width optical filter for multi/demultiplexer using a diffraction grating and a retroreflector prism
Author :
Nishi, I. ; Oguchi, Toshiki ; Kato, Kazuhiko
Author_Institution :
NTT, Musashino Electrical Communication Laboratory, Musashino, Japan
Abstract :
The letter describes the experimental results of a novel optical filter for a multi/demultiplexer using a diffraction grating and a retroreflector prism. A broader passband width, which is proportional to the difference between the prism base length and the input fibre core diameter, is obtained. The minimum insertion loss is 2.2 dB.
Keywords :
diffraction gratings; frequency division multiplexing; multiplexing equipment; optical communication equipment; optical fibres; optical filters; optical prisms; WDM transmission systems; broad passband width; diffraction grating; multi/demultiplexer; optical fibres; optical filter; optical links; retroreflector prism; wavelength-division multiplexing;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850301
