Title :
Optical Hydrophone for Broadband Medical Ultrasound
Author :
Mu, C. ; Umchid, S. ; Daryoush, A.S. ; Lewin, P.A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA
Abstract :
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
Keywords :
biomedical ultrasonics; fibre optic sensors; hydrophones; broadband fiber-based hydrophone probe; broadband medical ultrasound; fiber optic ultrasound hydrophone probe; fiber-optic sensor; laser source; metrology; power budget calculation; signal-to-noise ratio; ultrasound field measurement; Biomedical optical imaging; Fiber lasers; Frequency measurement; Optical fiber sensors; Optical sensors; Probes; Sonar equipment; Spatial resolution; Ultrasonic imaging; Ultrasonic variables measurement; Broadband hydrophone calibration; Fiberoptic sensor; Ultrasound filed measurement; Ultrasound metrology;
Conference_Titel :
Microwave Photonics, 2006. MWP '06. International Topical Meeting on
Conference_Location :
Grenoble
Print_ISBN :
1-4244-0203-4
Electronic_ISBN :
1-4244-0204-2
DOI :
10.1109/MWP.2006.346549
