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光纤光栅与受激布里渊信号的耦合特性

Coupling characteristics between fiber grating and stimulated Brillouin signal

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摘要

近年来,光纤布拉格光栅传感器与全分布式光纤传感器的融合技术受到了广泛关注,然而光纤布拉格光栅与布里渊信号之间的耦合特性鲜有报道。本文研究了光栅类型、波长、反射率及光纤的光致折射率对受激布里渊信号的影响规律,并探讨了空间分辨率对光纤布拉格光栅定位功能的影响。实验结果表明,在布里渊光时域分析系统中,光纤布拉格光栅处有尖锐的反射峰,而啁啾光栅、长周期光栅及光致折射率变化的光纤处均未出现尖锐的反射峰; 光纤布拉格光栅反射率与受激布里渊散射功率谱无关; 当光纤布拉格光栅的波长接近1 550 nm时,对受激布里渊频移测量的影响最大; 在8 m的长度范围内,光纤布拉格光栅的定位误差约为4 cm,并且与空间分辨率无关。

Abstract

Recently, the integration technique of fiber Bragg grating (FBG) sensors and distributed optical fiber sensors has attracted extensive attention. However, it is unknown about coupling properties between FBG and Brillouin signal. In this paper, we investigate the effects of optical grating types, wavelength and reflectivity and exposure-induced refractive index of optical fiber on stimulated Brillouin signal. Meanwhile, the influence of spatial resolution on positioning of FBG is discussed. Experimental results show that the sharp reflected peak from FBG occurs in the hybrid system of FBG sensor and Brillouin optical time-domain analysis (BOTDA), while no reflected peak occurs for chirped grating and long period grating, as well as exposure-induced refractive index of optical fibers. FBG reflectivity has no connection with power spectrum of simulated Brillouin scattering. It is also shown that when the wavelength of FBG is close to 1 550 nm, the influence on stimulated Brillouin signal is the largest. A positioning error of approximate 4 cm is obtained among a sensing range of 8 m, which is independent on the spatial resolution.

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中图分类号:TU317

DOI:10.3788/co.20171004. 0484

所属栏目:光学仪器与测试

基金项目:国家自然科学基金项目(No.51508349);河北省自然科学基金项目(No.E2015210094);河北省高等学校科学技术研究青年基金项目(No.QN2016080)

收稿日期:2017-03-10

修改稿日期:2017-04-15

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孙宝臣:石家庄铁道大学 大型结构健康诊断与控制研究所,河北 石家庄 050043河北省减隔震技术与装置工程技术研究中心,河北 衡水 053000
侯跃敏:石家庄铁道大学 大型结构健康诊断与控制研究所,河北 石家庄 050043
李峰:石家庄铁道大学 大型结构健康诊断与控制研究所,河北 石家庄 050043
李剑芝:石家庄铁道大学 大型结构健康诊断与控制研究所,河北 石家庄 050043河北省减隔震技术与装置工程技术研究中心,河北 衡水 053000

联系人作者:孙宝臣(sunbaochen@stdu.edu.cn)

备注:孙宝臣(1961-),男,河北高碑店人,教授,1982年于东北重型机械学院获得硕士学位,主要从事智能材料方面的研究。

【1】HE J,ZHOU Z,WU H. Long-term monitoring of a civil defensive structure based on distributed Brillouin optical fiber sensor[J]. Pacific Science Review,2007,9(1): 97-102.

【2】MOREY W W,MELTZ G,GLENN W H. Fiber optic Bragg grating sensors[J]. SPIE,1990,1169: 98-107.

【3】KERSEY A D,DAVIS M A,PATRICK H J,et al.. Fiber grating sensors[J]. Journal of Lightwave Technology,1997,15(8): 1442-1463.

【4】DIAZ S,MAFANG S F,LOPEZ-AMO M,et al.. High performance Brillouin distributed fibre sensor [J]. SPIE,2007,6619: 661938.

【5】SUN Q,TU X,SUN S,et al.. Long-range BOTDA sensor over 50 km distance employing pre-pumped simplex coding[J]. Journal of Optics,2016,18(5): 055501.

【6】WILLIAMS,XIAOYI,LIANG,et al.. Investigation of combined Brillouin gain and loss in a birefringent fiber with applications in sensing[J]. Chinese Optics Letters,2014,12(12): 126-132.

【7】MENG D,ANSARI F,FENG X. Detection and monitoring of surface micro-cracks by PPP-BOTDA[J]. Applied Optics,2015,54(16): 4972-4978.

【8】李川,刘江,庄君刚,等. 基于背向Brillouin散射监测混凝土应变[J]. 光学 精密工程,2014,22(2): 325-330.
LI CH,LIU J,ZHUANG J G,et al.. Strain detection concrete structures based on Brillouin backscattering[J]. Optics and Precision Engineering,2014,22(2): 325-330. (in Chinese)

【9】FOALENG S M,TUR M,BEUGNOT J C,et al.. High spatial and spectral resolution long-range sensing using Brillouin echoes[J]. Journal of Lightwave Technology,2010,28(20): 2993-3003.

【10】SPERBER T,EYAL A,TUR M,et al.. High spatial resolution distributed sensing in optical fibers by Brillouin gain-profile tracing[J]. Optics Express,2010,18(8): 8671-8679.

【11】THEVENAZ L,DENISOV A,SOTO M A. Brillouin distributed fiber sensing at ultra-high spatial resolution[C]. Proceedings of the IEEE Photonics Conference (IPC) 2015,Reston,USA,October 4-8,2015.

【12】徐国权,熊代余. 光纤光栅传感技术在工程中的应用[J]. 中国光学,2013,6(3): 306-317.
XU G Q,XIONG D Y.Applications of fiber Bragg grating sensing technology in engineering[J]. Chinese Optics,2013,6(3): 306-317. (in Chinese)

【13】吴晶,吴晗平,黄俊斌,等. 光纤光栅传感信号解调技术研究进展[J]. 中国光学,2014,7(4): 519-531.
WU J,WU H P,HUANG J B,et al.. Research progress in signal demodulation technology of fiber Bragg grating sensors[J]. Chinese Optics,2014,7(4): 519-531. (in Chinese)

【14】LUO J,HAO Y,YE Q,et al.. Development of optical fiber sensors based on Brillouin scattering and FBG for on-line monitoring in overhead transmission lines[J]. Journal of Lightwave Technology,2013,31(10): 1559-1565.

【15】SUN A,SEMENOVA Y,FARRELL G,et al.. BOTDR integrated with FBG sensor array for distributed strain measurement[J]. Electronics Letters,2010,46(1): 66-68.

【16】LAN C,ZHOU Z,OU J. Monitoring of structural prestress loss in RC beams by inner distributed Brillouin and fiber Bragg grating sensors on a single optical fiber[J]. Structural Control and Health Monitoring,2014,21(3): 317-330.

【17】TAKI M,NANNIPIERI T,ZAIDI F,et al.. Hybrid optical fibre sensor for simultaneous dynamic FBG interrogation and distributed static strain/temperature measurements[J]. Electronics Letters,2012,48(24): 1548-1550.

【18】LI J,SUN B,KINZO K. The influence of FBG on Brillouin distributed sensor[J]. Journal of Civil Structural Health Monitoring,2015,5(5): 629-643.

【19】李剑芝,姜德生. 载氢与掺锗石英光纤的光致折射率改变[J]. 无机材料学报,2006,21(2): 345-350.
LI J ZH,JIANG D SH. Photolytic index changes in germanosilicate and hydrogen-loaded fiber[J]. Journal of Inorganic Matreials, 2006,21(2): 345-350. (in Chinese)

引用该论文

SUN Bao-chen,HOU Yue-min,LI Feng,LI Jian-zhi. Coupling characteristics between fiber grating and stimulated Brillouin signal[J]. Chinese Optics, 2017, 10(4): 484-490

孙宝臣,侯跃敏,李峰,李剑芝. 光纤光栅与受激布里渊信号的耦合特性[J]. 中国光学, 2017, 10(4): 484-490

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