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Proceedings Paper

Detection of high-frequency elastic waves with embedded ordinary single-mode fibers
Author(s): Kexing Liu
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Paper 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.

Paper Details

Date Published: 1 December 1991
Proc. SPIE 1584, Fiber Optic and Laser Sensors IX, (1 December 1991); doi: 10.1117/12.2321920
Show Author Affiliations
Kexing Liu, Univ. of Toronto Institute for Aerospace Studies (Canada)

Published in SPIE Proceedings Vol. 1584:
Fiber Optic and Laser Sensors IX
Ramon P. DePaula; Eric Udd, Editor(s)

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