Journal
OPTICS LETTERS
Volume 27, Issue 11, Pages 903-905Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.27.000903
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A novel monitoring system for a fiber Fabry-Perot interferometer (FFPI) temperature sensor has yielded a resolution of 0.013 degreesC (0.0025 fringe), Light from a broadband source passes through a scanned Michelson interferometer and is reflected from a FFPI to produce a fringe pattern. the temporal position of which is proportionat to a change in the optical length of the fiber interferometer. A second Michelson interferometer with a distributed-feedback laser source is used to correct for variations in the translation rate of the motor-driven scanning mirror, Coherence multiplexing of three such sensors has also been demonstrated. (C) 2002 Optical Society of America.
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