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Light intensity modulated fiber-optic hydrophones

YONG ZHAO1,* , QI WANG1

Affiliation

  1. Northeastern University, School of Information Science and Engineering, Shenyang 110819, China

Abstract

Fiber-optic sensors for underwater acoustic wave measurement have become a research focus in recent years. There are great potential for down-hole instrumentation for exploration of nature oil resources, and especially for military use of subsea acoustic measurement. This article presents a comprehensive and systematic overview of fiber-optic hydrophones based on light intensity modulation technologies. A novel fiber-optic sensor for acoustic wave measurement based on a single-mode fiber coupler is also introduced. It is anticipated that light intensity modulated fiber-optic hydrophones will be commercialized and widely applied in practice in the near future due to their compact structures and low costs..

Keywords

Fiber-optic sensors, Fiber-optic hydrophone, Underwater acoustic sensor, Acousto-optics, Light intensity modulation.

Submitted at: Dec. 15, 2010
Accepted at: Feb. 17, 2011

Citation

YONG ZHAO, QI WANG, Light intensity modulated fiber-optic hydrophones, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 2, pp. 117-121 (2011)