DocumentCode
1253894
Title
Low voltage tunable in-line channel dropping filter using liquid crystal waveguide overlays
Author
Madden, W.I. ; Johnstone, Walter
Volume
33
Issue
11
fYear
1997
fDate
5/22/1997 12:00:00 AM
Firstpage
985
Lastpage
986
Abstract
A tunable in-line fibre optic channel dropping filter is reported using evanescent coupling from a single-mode fibre to a thin waveguiding layer of nematic liquid crystal material. The large electro-optic coefficient of the liquid crystal allows low drive voltages. A tuning range of 40 nm for 10 V has been demonstrated
Keywords
electro-optical filters; liquid crystal devices; optical fibre filters; optical waveguide filters; 10 V; electro-optic coefficient; evanescent coupling; liquid crystal waveguide overlay; low voltage operation; nematic liquid crystal; single-mode fibre; tunable in-line fibre optic channel dropping filter;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19970631
Filename
591606
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