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Optical Hydrophone for Broadband Medical Ultrasound
Conference proceeding

Optical Hydrophone for Broadband Medical Ultrasound

C Mu, S Umchid, A.S Daryoush and P.A Lewin
2006 International Topical Meeting on Microwave Photonics, pp 1-4
Oct 2006
DOI: https://doi.org/10.1109/MWP.2006.346549

Abstract

Biomedical optical imaging Broadband hydrophone calibration Fiber lasers Fiberoptic sensor Frequency measurement Optical fiber sensors Optical sensors Probes Sonar equipment Spatial resolution Ultrasonic imaging Ultrasonic variables measurement Ultrasound filed measurement Ultrasound metrology
A broadband fiber-based hydrophone probe is reported for measurements of high frequency (up to 100 MHz) ultrasonic fields. The fiber probe with a tip diameter on the order of about 9 microns provides an effective measurement tool, which is adequate for mm spatial resolution and they could eliminate the need for spatial averaging corrections. Power budget calculation of the fiber sensor has been performed, which shows that high power laser source is essential to achieve sufficient signal-to-noise ratio. Experiments have been done to examine the sensitivity of the fiber optic ultrasound hydrophone probe

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