中国激光, 2014, 41 (4): 0405004, 网络出版: 2014-03-14   

超弱反射光栅准分布式光纤传感系统研究

Study of a Quasi-Distributed Optical Fiber Sensing System Based on Ultra-Weak Fiber Bragg Gratings
作者单位
中国计量学院光学与电子科技学院, 浙江 杭州 310018
摘要
采用波长可调谐光源与光时域反射技术(OTDR)结合的方案,通过对光脉冲调制技术和光电转换电路的优化,实现了一种对超弱全同反射光纤光栅的准分布式解调系统。实验中,20个中心波长相近的超弱反射光栅间隔2 m放置于约5.8 km长的光纤尾端,该解调系统成功实现了对这些反射率仅为0.01%的超弱反射光栅高信噪比的解调与定位,并且测得的光纤布拉格光栅(FBG)中心波长随温度变化的线性度达到99.7%以上。
Abstract
A quasi-distributed fiber Bragg grating (FBG) demodulating system is developed by combining the wavelength tunable laser and the optical time domain reflectometry (OTDR) technique. By optimizing the optical pulse modulation and the light detection circuit, the ultra-weak reflective FBGs can be demodulated and located. In the experiment, 20 ultra-weak reflective FBGs of only 0.01% reflection with the interval space of 2 m are connected to the end of a 5.8 km long fiber. All the central wavelength and position of the FBGs can be measured simultaneously. The measured FBG center wavelength has a good linearity of 99.7%.
参考文献

[1] 蔡江江, 许国良, 胡君辉, 等. 基于自外差探测的多光纤光栅远程传感系统[J]. 中国激光, 2012, 39(12): 1214002.

    Cai Jiangjiang, Xu Guoliang, Hu Junhui, et al.. Remote fiber Bragg grating sensors system based on self-heterodyne detection[J]. Chinese J Lasers, 2012, 39(12): 1214002.

[2] Gao Huiyong, Tang Jianguan, Li Xiaofu, et al.. On-line writing identical and weak fiber Bragg grating arrays[J]. Chin Opt Lett, 2013, 11(3): 030602.

[3] 田石柱, 曹长城, 王大鹏. 光纤光栅传感器监测混凝土简支梁裂缝的实验研究[J]. 中国激光, 2013, 40(1): 0114001.

    Tian Shizhu, Cao Changcheng, Wang Dapeng. Experimental study on fiber grating sensor monitor the crake of concrete[J]. Chinese J Lasers, 2013, 40(1): 0114001.

[4] 姜德生, 范典, 梅加纯. 基于 FBG 传感器的分复用技术[J]. 激光与光电子学进展, 2005, 42(4): 14-19.

    Jiang Desheng, Fan Dian, Mei Jiachun. Multiplexing/demultiplexing technology based on fiber Bragg grating sensors[J]. Laser & Optoelectronics Progress, 2005, 42(4): 14-19.

[5] Gu Xingyao, Chen Hongwei, Chen Minghua, et al.. 160 km all-optical OFDM transmission system with inline chromatic dispersion compensation[J]. Chin Opt Lett, 2012, 10(2): 020601.

[6] 李沼云, 李苏, 刘志强, 等. 光频域反射光纤光栅分布式应变传感研究[J]. 光通信技术, 2012, 36(12): 33-35.

    Li Zhaoyun, Li Su, Liu Zhiqiang, et al.. Research in optical frequency domain reflectometry fiber Bragg grating distributed strain sensor[J]. Optical Communication Technology, 2012, 36(12): 33-35.

[7] Y Wang, J Gong, B Dong, et al.. A large serial time-division multiplexed fiber Bragg grating sensor network[J]. J Lightwave Technol, 2012, 30(17): 2751-2756.

[8] 张满亮, 孙琪真, 王梓, 等. 基于全同弱反射光栅光纤的分布式传感研究[J]. 激光与光电子学进展, 2011, 48(8): 080604.

    Zhang Manliang, Sun Qizhen, Wang Zi, et al.. Investigation on distributed optical fiber sensor based on identical-low-reflect fiber gratings[J]. Laser & Optoelectronics Progress, 2011, 48(8): 080604.

[9] 张燕君, 谢晓鹏, 毕卫红. 基于弱光栅的高速高复用分布式温度传感网络[J]. 中国激光, 2013, 40(4): 0405006.

    Zhang Yanjun, Xie Xiaopeng, Bi Weihong. High-speed high-multiplexing distributed temperature sensor network based on weak-reflection fiber grating[J]. Chinese J Lasers, 2013, 40(4): 0405006.

[10] I Ma, M G Shlyagin, S V Miridonov, et al.. Remote sensing with ultra-low-reflective Bragg gratings written in standard telecommunication fiber[J]. Opt Eng, 2003, 42(5): 1182-1183.

[11] 张彩霞, 张震伟, 徐贲, 等. 马赫曾德尔电光调制器多工作点偏压控制技术[J]. 光电子·激光, 2013, 24(8): 1461-1466.

    Zhang Caixia, Zhang Zhenwei, Xu Ben, et al.. A novel circuit design for bias controlling of Mach-Zehnder electro-optic modu-lator[J]. Journal of Optoeletronics·Laser, 2013, 24(8): 1461-1466.

张彩霞, 张震伟, 郑万福, 刘晓航, 李裔, 董新永. 超弱反射光栅准分布式光纤传感系统研究[J]. 中国激光, 2014, 41(4): 0405004. Zhang Caixia, Zhang Zhenwei, Zheng Wanfu, Liu Xiaohang, Li Yi, Dong Xinyong. Study of a Quasi-Distributed Optical Fiber Sensing System Based on Ultra-Weak Fiber Bragg Gratings[J]. Chinese Journal of Lasers, 2014, 41(4): 0405004.

本文已被 7 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!