基于时间选通方案的布里渊光相关域反射测量中的测量范围扩展

Measurement range enlargement in Brillouin optical correlation-domain reflectometry based on temporal gating scheme.

作者信息

Mizuno Yosuke, He Zuyuan, Hotate Kazuo

机构信息

Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.

出版信息

Opt Express. 2009 May 25;17(11):9040-6. doi: 10.1364/oe.17.009040.

DOI:10.1364/oe.17.009040

PMID:19466153

Abstract

We newly develop a temporal gating scheme to enlarge the measurement range of Brillouin optical correlation-domain reflectometry (BOCDR) for a fiber-optic distributed strain measurement. In this scheme, the trade-off problem between the measurement range and the spatial resolution can be dissolved. 66-cm spatial resolution and 1-km measurement range were simultaneously obtained with 50-Hz sampling rate.

摘要

我们新开发了一种时间选通方案，以扩大用于光纤分布式应变测量的布里渊光相关域反射测量法（BOCDR）的测量范围。在该方案中，测量范围和空间分辨率之间的权衡问题可以得到解决。在50赫兹采样率下，同时获得了66厘米的空间分辨率和1公里的测量范围。