Quasi-distributed optical fiber sensors using multiple frequency shifters

Osni Lisboa; Y. Tsukahara; Christian Neron; Cheng-Kuei Jen

doi:10.1117/12.165908

30 December 1993 Quasi-distributed optical fiber sensors using multiple frequency shifters

Osni Lisboa, Y. Tsukahara, Christian Neron, Cheng-Kuei Jen

Proceedings Volume 2071, Distributed and Multiplexed Fiber Optic Sensors III; (1993) https://doi.org/10.1117/12.165908
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States

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.

Citation Download Citation

Osni Lisboa, Y. Tsukahara, Christian Neron, and Cheng-Kuei Jen "Quasi-distributed optical fiber sensors using multiple frequency shifters", Proc. SPIE 2071, Distributed and Multiplexed Fiber Optic Sensors III, (30 December 1993); https://doi.org/10.1117/12.165908

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