光纤水听器的原理与应用

为适应水声学应用特别是水下反潜战的需要，在光纤技术不断发展的基础上，光纤水听器应运而生．光纤水听器是一种基于光纤、光电子技术上的新型水下声传感器，因其在军事、民用各领域应用广泛，目前光纤水听器在国内外发展迅速，已经到达实用状态．全光光纤水听器系统的湿端采用全光实现，信号传感与传输皆基于光纤技术．具有抗电磁干扰、重量轻和造价低等优点．文章简述了光纤水听器的发展历史、现状，论述了光纤水听器的原理及其应用前景．

Principle and applications of the fiber optic hydrophone

The fiber optic hydrophone was developed to satisfy the urgent demands of underwater acoustics applications, especially for anti|submarine purposes. This new underwater acoustic sensor based on optical fiber and optoelectronics technology is now well developed and widely used in military and civil applications. The optical fiber hydrophone system including the wet end signal sensing and transfer is all fiber based, and thus has the merits of light weight, low cost and immunity to electromagnetic interference. The history and development of the fiber optic hydrophone are reviewed, with a detailed discussion of the principle and applications.