Distributed fiber beat length, birefringence and differential group delay measurement using BOTDA technique

被引：1
|
作者：
Xie, Shangran [1 ]
Bao, Xiaoyi [1 ]
Chen, Liang [1 ]
机构：
[1] Univ Ottawa, Dept Phys, Fiber Opt Grp, Ottawa, ON K1N 6N5, Canada
来源：
21ST INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS | 2011年 / 7753卷
关键词：
beat length; birefringence; differential group delay; polarization mode dispersion; BOTDA;
D O I：
10.1117/12.899543
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A novel method for distributed fiber beat length, birefringence and differential group delay (DGD) measurement based on Brillouin optical time domain analysis (BOTDA) technique is proposed. The difference of local maximum and minimum Brillouin gain is determined by scanning input state of polarization (SOP) of pulsed probe wave to recover local beat length. The average beat length, birefringence and DGD measured on 100m SMF28 at 1550nm wavelength with 1m spatial resolution is 11.8m, 1.4x10(-7) and 0.21ps respectively.
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页数：4
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