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Proceedings Article

Optical fiber sensor for the detection of laser-generated ultrasound in arterial tissues

[+] Author Affiliations
Paul C. Beard, Timothy N. Mills

Univ. College London (United Kingdom)

Proc. SPIE 2331, Medical Sensors II and Fiber Optic Sensors, 112 (February 10, 1995); doi:10.1117/12.201235
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From Conference Volume 2331

  • Medical Sensors II and Fiber Optic Sensors
  • Anna M. Verga Scheggi; Francesco Baldini; Pierre R. Coulet; Otto S. Wolfbeis
  • Lille, France | September 06, 1994

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.

© (1995) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Paul C. Beard and Timothy N. Mills
"Optical fiber sensor for the detection of laser-generated ultrasound in arterial tissues", Proc. SPIE 2331, Medical Sensors II and Fiber Optic Sensors, 112 (February 10, 1995); doi:10.1117/12.201235; http://dx.doi.org/10.1117/12.201235


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