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Proceedings Paper

Optical fiber sensor for the detection of laser-generated ultrasound in arterial tissues
Author(s): Paul C. Beard; Timothy N. Mills
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Paper Abstract

Theoretical and experimental aspects of an extrinsic Fabry-Perot optical fiber ultrasound sensor for use in a photoacoustic-guided laser angioplasty system are described. The sensor has been characterized using laser generated thermoelastic waves as a source of wideband ultrasound. A system sensitivity of 25 mV/MPa and an acoustic noise floor of 2 Pa/Hz1/2 are reported using a transparent polymer film as the sensing element. The system demonstrates the required bandwidth for sensing thermoelastic waves containing frequency components up to 20 MHz.

Paper Details

Date Published: 10 February 1995
PDF: 11 pages
Proc. SPIE 2331, Medical Sensors II and Fiber Optic Sensors, (10 February 1995); doi: 10.1117/12.201235
Show Author Affiliations
Paul C. Beard, Univ. College London (United Kingdom)
Timothy N. Mills, Univ. College London (United Kingdom)


Published in SPIE Proceedings Vol. 2331:
Medical Sensors II and Fiber Optic Sensors
Anna Maria Verga Scheggi; Francesco Baldini; Pierre R. Coulet; Otto S. Wolfbeis, Editor(s)

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