Detection of high-frequency elastic waves with embedded ordinary single-mode fibers

Kexing Liu

doi:10.1117/12.2321920

1 December 1991 Detection of high-frequency elastic waves with embedded ordinary single-mode fibers

Kexing Liu

Proceedings Volume 1584, Fiber Optic and Laser Sensors IX; (1991) https://doi.org/10.1117/12.2321920
Event: OE Fiber, 1991, Boston, MA, United States

Abstract

Ordinary single-mode optical fibers embedded in solid materials are used for the detection of high frequency elastic strain waves in interferometric configurations. The strong state-of-polarization (SOP) dependence and lead sensitivity to external perturbations present a major limit. Neither the feedback control nor the scrambling of the input SOP will eliminate the sensitivity variations due to the measurand induced birefringence in the interferometric arms. We will show, however, that such sensors can still be used for ultrasonic pulse delay and relative ultrasonic spectrum measurement.

Citation Download Citation

Kexing Liu "Detection of high-frequency elastic waves with embedded ordinary single-mode fibers", Proc. SPIE 1584, Fiber Optic and Laser Sensors IX, (1 December 1991); https://doi.org/10.1117/12.2321920

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