Paper
1 July 2015 Fiber Bragg grating ultrasonic sensors based on intensity modulation technique
Author Affiliations +
Proceedings Volume 9655, Fifth Asia-Pacific Optical Sensors Conference; 96550X (2015) https://doi.org/10.1117/12.2186693
Event: Fifth Asia Pacific Optical Sensors Conference, 2015, Jeju, Korea, Republic of
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.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Satoshi Tanaka "Fiber Bragg grating ultrasonic sensors based on intensity modulation technique", Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 96550X (1 July 2015); https://doi.org/10.1117/12.2186693
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KEYWORDS
Fiber Bragg gratings

Sensors

Modulation

Acoustics

Fiber optics sensors

Ultrasonics

Fiber lasers

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