| 基于双向Raman放大的Brillouin光时域分析系统 |
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| 引用本文： | 张超,饶云江,贾新鸿,苌亮,冉曾令.基于双向Raman放大的Brillouin光时域分析系统[J].海洋学报,2010,32(10):7050-7054. |
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| 作者姓名： | 张超 饶云江 贾新鸿 苌亮 冉曾令 |
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| 作者单位： | 电子科技大学通信与信息工程学院,光纤传感与通信教育部重点实验室,成都 611731;电子科技大学通信与信息工程学院,光纤传感与通信教育部重点实验室,成都 611731; 重庆大学光电工程学院,光电技术与系统教育部重点实验室, 重庆 400044;电子科技大学通信与信息工程学院,光纤传感与通信教育部重点实验室,成都 611731;电子科技大学通信与信息工程学院,光纤传感与通信教育部重点实验室,成都 611731;电子科技大学通信与信息工程学院,光纤传感与通信教育部重点实验室,成都 611731 |
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| 基金项目： | 国家高技术研究发展计划(批准号:2007AA01Z245)资助的课题. |
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| 摘 要： | 提出了一种基于双向Raman放大的Brillouin光时域分析系统(BOTDA).利用双向Raman抽运对信号光进行Raman放大以补偿光纤损耗及Brillouin抽运波的消耗,从而使光纤后端的测量分辨率得到改善,测量分辨率在整段传感光纤趋于一致,同时避免了调制不稳定性引起的频谱扩展,克服了传统BOTDA存在的信号强度指数下降的弊端,使传感精度得到进一步提高.实验实现了50 km传感距离, 温度分辨率达0.6 ℃,空间分辨率为50 m.测量并分析了基于双向Raman放大的BOTDA信噪比和光功率分布特性.
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| 关 键 词： | 分布式光纤传感 受激Raman放大 Brillouin增益 Brillouin光时域分析 |
Brillouin optical time domain analyzer based on bi-directional Raman amplification |
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| Zhang Chao,Rao Yun-Jiang,Jia Xin-Hong,Chang Liang and Ran Zeng-Ling.Brillouin optical time domain analyzer based on bi-directional Raman amplification[J].Acta Oceanologica Sinica (in Chinese),2010,32(10):7050-7054. |
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| Authors: | Zhang Chao Rao Yun-Jiang Jia Xin-Hong Chang Liang and Ran Zeng-Ling |
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| Institution: | Key Laboratory of Optical Fiber Sensing and Communications of Ministry of Education, School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China;Key Laboratory of Optical Fiber Sensing and Communications of Ministry of Education, School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China; Key Laboratory of Optoelectronic Tec;Key Laboratory of Optical Fiber Sensing and Communications of Ministry of Education, School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China;Key Laboratory of Optical Fiber Sensing and Communications of Ministry of Education, School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China;Key Laboratory of Optical Fiber Sensing and Communications of Ministry of Education, School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China |
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| Abstract: | |
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| Keywords: | distributed optical fiber sensing stimulated Raman amplification Brillouin gain Brillouin optical time domain analyzer |
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