摘要
光频域反射计(OFDR)是一种分布式光纤测量技术。将扫频激光注入光纤链路,对后向瑞利散射光进行频域分析,定位光纤链路上的反射点位置及强度。由于其具有高精度、高空间分辨率等特点,广泛地应用于航空航天、智能结构、材料加工、光学网络监测、生物医学等高精度测量及制造领域。本文阐述了OFDR的基本原理,介绍了提升OFDR系统性能的关键技术研究进展,最后总结了OFDR在不同领域的应用,展望了未来的发展趋势。
Optical frequency domain reflectometer(OFDR)is a distributed optical fiber measurement technology.The scanning laser is injected into the optical fiber link,and the position and intensity of the reflection points on the optical fiber link are located by analyzing the Rayleigh backscattering scattering light in the frequency domain.Because of its high precision,high spatial resolution and other characteristics,it is widely used in aerospace,intelligent structure,material processing,optical network monitoring,biomedicine and other high precision measurement and manufacturing fields.In this paper,the basic principle of OFDR is described.The research progress of key technologies to improve OFDR performance is introduced.Finally,the application of OFDR in different fields and to the future development trend are summarized and prospected.
作者
朱坤垚
江毅
Zhu Kunyao;Jiang Yi(School of Optics and Photonics,Beijing Institute of Technology,Beijing 100081,China;Key Laboratory of Photonic Information Technology,Ministry of Industry and Information Technology,Beijing 100081,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2024年第5期13-29,共17页
Laser & Optoelectronics Progress
基金
国家自然科学基金企业联合创新重点基金项目(U20B2057)。
关键词
光频域反射计
分布式光纤传感
后向瑞利散射
频域分析
optical frequency domain reflectometry
distributed optical fiber sensing
Rayleigh backscattering
frequencydomain analysis
