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Proceedings Paper

Quasi-distributed optical fiber sensors using multiple frequency shifters
Author(s): Osni Lisboa; Y. Tsukahara; Christian Neron; Cheng-Kuei Jen
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Paper Abstract

Quasi-distributed optical fiber sensors using multiple frequency shifters (FSs) in two-mode elliptical core fiber (TMECF) are presented. Sensing measurand is the phase shift between the two propagating modes in the fiber. In the present experimental configuration, four FSs provide three independent sensing regions along a single TMECF. We construct one sensor in each region to measure localized strain and/or bending simultaneously. Cross talk among the sensors is theoretical and experimentally evaluated. Measurements were carried out using a computer system that allows a real time data acquisition and display.

Paper Details

Date Published: 30 December 1993
PDF: 12 pages
Proc. SPIE 2071, Distributed and Multiplexed Fiber Optic Sensors III, (30 December 1993); doi: 10.1117/12.165908
Show Author Affiliations
Osni Lisboa, McGill Univ. (Canada)
Y. Tsukahara, National Research Council Canada (Canada)
Christian Neron, National Research Council Canada (Canada)
Cheng-Kuei Jen, National Research Council Canada (Canada)


Published in SPIE Proceedings Vol. 2071:
Distributed and Multiplexed Fiber Optic Sensors III
Alan D. Kersey; John P. Dakin, Editor(s)

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