DocumentCode
889681
Title
Interrogation of fibre-optic interferometric sensors using acousto-optic tunable filter
Author
Xu, M.G. ; Geiger, K. ; Dakin, J.P.
Author_Institution
Optoelectron. Res. Centre, Southampton Univ., UK
Volume
31
Issue
17
fYear
1995
fDate
8/17/1995 12:00:00 AM
Firstpage
1487
Lastpage
1488
Abstract
A new technique for the interrogation of interferometric-based fibre-optic sensors using an acousto-optic tunable filter (AOTF) is demonstrated The scheme involves frequency shift keying (FSK) of the RF drive to the AOTF to track the shift of a single fringe peak from an interferometric sensor. Experimental results are presented for a Fizeau interferometer. The technique provides high accuracy, plus a large unambiguous tracking range free from interruptions
Keywords
acousto-optical filters; fibre optic sensors; frequency shift keying; light interferometers; Fizeau interferometer; RF drive; acousto-optic tunable filter; fibre-optic interferometric sensors; frequency shift keying; interrogation; tracking range;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19951037
Filename
464109
Link To Document