Extrinsic Fabry-Perot ultrasonic detector

J. Jeff Kidwell; John W. Berthold III

doi:10.1117/12.255349

25 October 1996 Extrinsic Fabry-Perot ultrasonic detector

J. Jeff Kidwell, John W. Berthold III

Proceedings Volume 2839, Fiber Optic and Laser Sensors XIV; (1996) https://doi.org/10.1117/12.255349
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

We characterized the performance of a commercial fiber optic extrinsic Fabry-Perot interferometer for use as an ultrasonic sensor, and compared the performance with a standard lead zirconate titanate (PZT) detector. The interferometer was unstabilized. The results showed that the fiber sensor was about 12 times less sensitive than the PZT detector. Ultrasonic frequency response near 100 kHz was demonstrated. We describe the design of the fiber sensor, the details of the tests performed, and potential applications.

Citation Download Citation

J. Jeff Kidwell and John W. Berthold III "Extrinsic Fabry-Perot ultrasonic detector", Proc. SPIE 2839, Fiber Optic and Laser Sensors XIV, (25 October 1996); https://doi.org/10.1117/12.255349

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