Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Experimental Investigation of the Acoustic Signal Detection Performance for an Interfermetric Fiber Optic Hydrophone

실험을 통한 간섭계형 광섬유 청음기의 음향신호 감지성능 연구

  • Published : 1997.12.01
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Abstract

Optical fiber sensor is a subject which has been attracted considerable attention in recent years. Detection of sound pressure with optical fibers positioned in the arms of a Mach-Zehnder interferometer is presented in this paper. A fiber length of the order of 150m is wounded is made by hollow cylinder type. To increase the sound signal 3${\times}3$ directional coupler is used. Fiber optic hydrophone is the underwater tank with 2kHz sound source. Finally, it is shown that the fiber optic hydeophone can stably detec 2kHz sound.

Keywords

References

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