System optimization of a long-range Brillouin-loss-based distributed fiber sensor

被引：34
作者：
Dong, Yongkang [1 ]
Chen, Liang [1 ]
Bao, Xiaoyi [1 ]
机构：
[1] Univ Ottawa, Dept Phys, Fiber Opt Grp, Ottawa, ON K1N 6N5, Canada
来源：
APPLIED OPTICS | 2010年 / 49卷 / 27期
基金：
加拿大自然科学与工程研究理事会;
关键词：
OPTICAL-FIBER; MODULATION INSTABILITY; SPATIAL-RESOLUTION; TEMPERATURE; SCATTERING; GAIN;
D O I：
10.1364/AO.49.005020
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report a high-performance 25 km Brillouin-loss-based distributed fiber sensor through optimizing system parameters. First, the Brillouin spectrum distortion and measurement error induced by the excess amplification on probe pulse are investigated, and the results indicate that a low continuous-wave pump power is essential to decrease the measurement error. Then an optimal pulse pair is determined through the differential Brillouin gain evolution along the entire sensing fiber in a differential pulse-width pair Brillouin optical time domain analysis. Using dispersion-shifted fiber to allow a high-power probe pulse, we realize a 25 km sensing range with a spatial resolution of 30 cm and a strain accuracy of +/- 20 mu epsilon,which we believe is the best performance in such a length, to the best of our knowledge. (c) 2010 Optical Society of America OCIS codes: 280.4788, 290.5900.
引用
收藏
页码：5020 / 5025
页数：6
相关论文
共 14 条
[1]  
Agrawal G P., 2012, Nonlinear Fiber Optics
[2]   Influence of modulation instability on distributed optical fiber sensors based on spontaneous Brillouin scattering [J].
Alahbabi, MN ;
Cho, YT ;
Newson, TP ;
Wait, PC ;
Hartog, AH .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2004, 21 (06) :1156-1160
[3]   Detrimental effect of modulation instability on distributed optical fibre sensors using stimulated Brillouin scattering [J].
Alasia, D ;
Herráez, MG ;
Abrardi, L ;
López, SM ;
Thévenaz, L .
17th International Conference on Optical Fibre Sensors, Pts 1 and 2, 2005, 5855 :587-590
[4]   32-KM DISTRIBUTED TEMPERATURE SENSOR-BASED ON BRILLOUIN LOSS IN AN OPTICAL-FIBER [J].
BAO, X ;
WEBB, DJ ;
JACKSON, DA .
OPTICS LETTERS, 1993, 18 (18) :1561-1563
[5]   22-KM DISTRIBUTED TEMPERATURE SENSOR USING BRILLOUIN GAIN IN AN OPTICAL FIBER [J].
BAO, X ;
WEBB, DJ ;
JACKSON, DA .
OPTICS LETTERS, 1993, 18 (07) :552-554
[6]   Differential Brillouin gain for improving the temperature accuracy and spatial resolution in a long-distance distributed fiber sensor [J].
Dong, Yongkang ;
Bao, Xiaoyi ;
Li, Wenhai .
APPLIED OPTICS, 2009, 48 (22) :4297-4301
[7]   The influence of pulse amplification on distributed fibre-optic Brillouin sensing and a method to compensate for systematic errors [J].
Geinitz, E ;
Jetschke, S ;
Röpke, U ;
Schröter, S ;
Willsch, R ;
Bartelt, H .
MEASUREMENT SCIENCE AND TECHNOLOGY, 1999, 10 (02) :112-116
[8]   DEVELOPMENT OF A DISTRIBUTED SENSING TECHNIQUE USING BRILLOUIN-SCATTERING [J].
HORIGUCHI, T ;
SHIMIZU, K ;
KURASHIMA, T ;
TATEDA, M ;
KOYAMADA, Y .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 1995, 13 (07) :1296-1302
[9]   Differential pulse-width pair BOTDA for high spatial resolution sensing [J].
Li, Wenhai ;
Bao, Xiaoyi ;
Li, Yun ;
Chen, Liang .
OPTICS EXPRESS, 2008, 16 (26) :21616-21625
[10]   57-km single-ended spontaneous Brillouin-based distributed fiber temperature sensor using microwave coherent detection [J].
Maughan, SM ;
Kee, HH ;
Newson, TP .
OPTICS LETTERS, 2001, 26 (06) :331-333
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