High-sensitivity optical time-domain reflectometry based on Brillouin dynamic gratings in polarization maintaining fibers

被引：25
|
作者：
Song, Kwang Yong [1 ]
机构：
[1] Chung Ang Univ, Dept Phys, Seoul 156756, South Korea
来源：
OPTICS EXPRESS | 2012年 / 20卷 / 25期
基金：
新加坡国家研究基金会;
关键词：
BIREFRINGENCE; SCATTERING; STRAIN;
D O I：
10.1364/OE.20.027377
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A high-sensitivity optical time-domain reflectometry based on Brillouin dynamic grating (BDG) is proposed and experimentally demonstrated in polarization-maintaining fibers, where a single-end access to a fiber under test is applied with co-propagation of pump and probe pulses for the operation of BDG. Distributed measurements of the BDG spectra are presented with 80 cm spatial resolution in 935 m range, showing strain and temperature sensitivities of 1.37 MHz/mu epsilon and -57.48 MHz/degrees C, respectively. (c) 2012 Optical Society of America
引用
收藏
页码：27377 / 27383
页数：7
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