摘要
首先介绍了偏振光时域反射技术(POTDR)的基本原理及发展现状,并重点介绍了几种典型调制效应(电光效应、Faraday效应以及弹光效应)的基本原理及其在POTDR分布式光纤传感器中的主要应用模式,以及POTDR分布式光纤传感器对现代监测系统的意义。最后,提出POTDR光纤传感器在实际应用中存在的问题与不足,并对其应用前景和发展方向进行了展望。
The principle and advantage of polarization-optical time domain reflectometry （POTDR） are illustrated. Some typical modulation effects related to POTDR distributed optic fiber sensors are introduced, which include electro- optical effect, Faraday effect and elasto-optical effect, etc. Distributed optic fiber sensors based on POTDR plays an important role in state-of-the-art monitoring system. On the other hand, its further development faces challenges due to some technical problems. The possible future directions for the development of POTDR distributed optic fiber sensors are also analyzed.
出处
《激光与红外》
CAS
CSCD
北大核心
2012年第11期1205-1209,共5页
Laser & Infrared
