FMCW reflectometric optical fiber strain sensor

Pei Chin Won; Leong Keey Seah; Anand Krishna Asundi

doi:10.1117/12.435539

6 August 2001 FMCW reflectometric optical fiber strain sensor

Pei Chin Won, Leong Keey Seah, Anand Krishna Asundi

Proceedings Volume 4328, Smart Structures and Materials 2001: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials; (2001) https://doi.org/10.1117/12.435539
Event: SPIE's 8th Annual International Symposium on Smart Structures and Materials, 2001, Newport Beach, CA, United States

Abstract

This paper describes a quasi-distributed optical fiber strain sensor whose principle of operation is based on the coherent frequency-modulated continuous-wave reflectometry technique. The sensing system is basically composed of a laser diode, which is frequency-swept by a triangle waveform injection current, and an unbalanced two-beam interferometer.

Citation Download Citation

Pei Chin Won, Leong Keey Seah, and Anand Krishna Asundi "FMCW reflectometric optical fiber strain sensor", Proc. SPIE 4328, Smart Structures and Materials 2001: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, (6 August 2001); https://doi.org/10.1117/12.435539

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