DocumentCode
1313627
Title
Phase demodulation in optical fibre Fabry-Perot sensors with inexact phase steps
Author
MacPherson, W.N. ; Kidd, S.R. ; Barton, J.S. ; Jones, J.D.C.
Author_Institution
Dept. of Phys., Heriot-Watt Univ., Edinburgh, UK
Volume
144
Issue
3
fYear
1997
fDate
6/1/1997 12:00:00 AM
Firstpage
130
Lastpage
133
Abstract
The authors describe an algorithm that extends the usefulness of phase stepping as a method for phase recovery from Fabry-Perot cavities. The use of arbitrary step sizes eliminates the need to operate with predetermined phase steps, thus minimising the effect of phase step errors. Furthermore, an iterative technique that accounts for multiple-reflection cavities is discussed. The algorithm is demonstrated on data obtained from an intrinsic fibre Fabry-Perot heat-flux sensor
Keywords
Fabry-Perot resonators; demodulation; fibre optic sensors; iterative methods; measurement errors; optical modulation; Fabry-Perot cavities; arbitrary step sizes; fibre optic sensors; inexact phase steps; intrinsic fibre Fabry-Perot heat-flux sensor; iterative technique; multiple-reflection cavities; optical fibre Fabry-Perot sensors; phase demodulation; phase recovery; phase step errors; phase stepping; predetermined phase steps;
fLanguage
English
Journal_Title
Optoelectronics, IEE Proceedings -
Publisher
iet
ISSN
1350-2433
Type
jour
DOI
10.1049/ip-opt:19971092
Filename
600908
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