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Proceedings Paper

Fiber Bragg grating ultrasonic sensors based on intensity modulation technique
Author(s): Satoshi Tanaka
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Paper Abstract

Intensity modulation technique is an attractive interrogation method for fiber-optic ultrasonic sensors using fiber Bragg gratings (FBGs), in which FBG modulates the intensity of reflected (or transmitted) narrowband light with a wavelength tuned to the slope of the FBG reflection (or transmission) spectrum curve if the vibration or acoustic wave is applied to the FBG and the intensity detection enables the direct observation of their waveforms. In this paper, principles of the intensity-based FBG ultrasonic sensors and their applications to vibration and underwater acoustic wave sensors are presented.

Paper Details

Date Published: 1 July 2015
PDF: 4 pages
Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 96550X (1 July 2015); doi: 10.1117/12.2186693
Show Author Affiliations
Satoshi Tanaka, National Defense Academy (Japan)

Published in SPIE Proceedings Vol. 9655:
Fifth Asia-Pacific Optical Sensors Conference
Byoungho Lee; Sang-Bae Lee; Yunjiang Rao, Editor(s)

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