| 基于混沌信号的光时域反射仪 |
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| 引用本文： | 王云才,张建国,徐航,王安帮.基于混沌信号的光时域反射仪[J].光学仪器,2014,36(5):449-454. |
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| 作者姓名： | 王云才 张建国 徐航 王安帮 |
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| 作者单位： | 太原理工大学新型传感器与智能控制教育部/山西省重点实验室,山西太原030024;太原理工大学物理与光电工程学院,山西太原030024 |
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| 基金项目： | 国家自然科学基金(61205142,60908014);山西省自然科学基金(2013011019-3,2012021013-2) |
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| 摘 要： | 研制了基于混沌信号相关测距技术的光时域反射仪样机。介绍了该仪器的混沌光源设计,硬件系统结构设计和软件算法流程设计。以G.652.B单模光纤为被测对象,对该仪器检测光纤故障的技术指标进行了分析测试。测试结果表明,在102km内可实现与距离无关的50cm空间分辨率,比现有飞行时间测量技术提高了约两个数量级,可实现对光纤不同类型反射事件的识别,完全满足无源光网络中的故障检测。
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| 关 键 词： | 光时域反射仪 混沌激光 相关 半导体激光器 |
| 收稿时间： | 2014/8/20 0:00:00 |
Optical time domain reflectometer based on the chaotic signal |
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| WANG Yuncai,ZHANG Jianguo,XU Hang and WANG Anbang.Optical time domain reflectometer based on the chaotic signal[J].Optical Instruments,2014,36(5):449-454. |
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| Authors: | WANG Yuncai ZHANG Jianguo XU Hang and WANG Anbang |
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| Affiliation: | Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China;College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China;Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China;College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China;Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China;College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China;Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China;College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China |
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| Abstract: | An optical time domain reflectometer based on chaotic signal correlation ranging technology (COTDR) is designed and developed. The chaotic light source, hardware configuration and software design of the system are presented. By using G.652.B single mode fiber as the test object, technical specifications of the COTDR for fiber fault location are tested. Measured results show that the COTDR can realize a range-independent resolution of 50 cm within at least 102 km, which is raised by about two orders of magnitude compared with the existing flight time measurement technology. Furthermore, it can realize the recognition of the different reflection events in the fiber and meet a requirement of fault location in the passive optical network. |
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| Keywords: | optical time domain reflectometer chaotic laser correlation laser diode |
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