波分复用寻址四元件光纤光学激光水听器阵列。

Wavelength division multiplexing addressed four-element fiber optical laser hydrophone array.

作者信息

Jiang Yi

机构信息

Department of Optical Engineering, Beijing Institute of Technology, Beijing 100081, China.

出版信息

Appl Opt. 2007 May 20;46(15):2939-48. doi: 10.1364/ao.46.002939.

DOI:10.1364/ao.46.002939

PMID:17514241

Abstract

A four-element hydrophone array system using a fiber Bragg grating laser system is described. The demodulation technique for the array combines a 3x3 coupler-based interferometer and three wavelength division multiplexers (WDMs). It is believed to be a new passive approach to use a WDM and a unique arithmetic method. The operational frequency limit depends only on the frequency of its electronic portion. The designed system has achieved a minimum of approximately 7.2x10(-7) pm/ radicalHz detectable wavelength perturbation for frequencies that are greater than 200 Hz.

摘要

描述了一种使用光纤布拉格光栅激光系统的四元件水听器阵列系统。该阵列的解调技术结合了基于3x3耦合器的干涉仪和三个波分复用器（WDM）。据信这是一种使用波分复用器和独特算法的新型无源方法。工作频率极限仅取决于其电子部分的频率。对于大于200 Hz的频率，所设计的系统已实现了至少约7.2×10^(-7) pm/√Hz的可检测波长扰动。