红外与毫米波学报2017，Vol.36Issue(6)：727-731,738,6.DOI:10.11972/j.issn.1001-9014.2017.06.015
基于双重复频率的光时域反射仪
Optical time domain reflectometer based on dual repetition rates
摘要
Abstract
An optical time domain reflectometer with dual repetition rates was proposed based on the single photon detector with InGaAs/InP avalanche photodiode.Two arrays of laser pulses with slight different repetition rates were injected into the fiber to monitor the fiber broken point.A fast single photon detector was adopted for high sensitivity in reflected pulses detection with reduced measurement time.By adjusting the difference of the repetition rates,not only the measuring range of the system can be extended,but also the measurement accuracy can be changed.关键词
光时域反射仪/双重复频率/单光子探测器Key words
optical time domain reflectometer/dual repetition rates/single-photon detector分类
信息技术与安全科学引用本文复制引用
黄仁贵,陈杰,梁焰,沈旭玲,曾和平..基于双重复频率的光时域反射仪[J].红外与毫米波学报,2017,36(6):727-731,738,6.基金项目
国家自然科学基金(11404212,11604209) （11404212,11604209）
Supported by National Natural Science Foundation of China(11404212,11604209) （11404212,11604209）
