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1 February 1989 Integrating Fiber Optic Vibration Sensor
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Proceedings Volume 0985, Fiber Optic and Laser Sensors VI; (1989)
Event: O-E/Fiber LASE '88, 1988, Boston, MA, United States
The physical phenomenon behind the sensor described in this paper is related to the modulation of the speckle pattern, at the output end of a multimode fiber illuminated by coherent light, when the fiber is mechanically or acoustically disturbed. This effect is observed either when highly multimode fibers or two-mode fibers are used. In the latter case a demodulation technique is proposed to restore a signal proportional to the acoustical excitation
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
P. Martin, G. Le Boudec, and L. B. Jeunhomme "Integrating Fiber Optic Vibration Sensor", Proc. SPIE 0985, Fiber Optic and Laser Sensors VI, (1 February 1989);

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