1 July 1990 Fiber-optic microphone
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Proceedings Volume 1230, International Conference on Optoelectronic Science and Engineering '90; 12305G (1990) https://doi.org/10.1117/12.2294833
Event: The Marketplace for Industrial Lasers 1990, 1990, Chicago, IL, United States
Abstract
A fiber-optic microphone based on intensity modulation has been fabricated and tested. The device possesses sufficient sensitivity to detect acoustic waves in the frequency range from 300 to 3400 Hz. The signal to noise ration is 43 dB relative to 0. 1 pa 1 KHz. Since the device has been fabricated with standard GI (50 / 125) fibers it can be built quite simple and inexpensively with higher stability and reliability. The sensor is compatible with present fiber communication systems including sources, detectors and components.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ziming Hong, "Fiber-optic microphone", Proc. SPIE 1230, International Conference on Optoelectronic Science and Engineering '90, 12305G (1 July 1990); doi: 10.1117/12.2294833; https://doi.org/10.1117/12.2294833
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