计量学报2025，Vol.46Issue(10)：1470-1474,5.DOI:10.3969/j.issn.1000-1158.2025.10.09
基于电光调制的布里渊光时域反射仪频移参数校准方法
Calibration Method for Frequency Shift Parameter of Brillouin Optical Time-domain Reflectometer Based on Electro-optic Modulation
摘要
Abstract
A frequency shift parameter calibration method is proposed for Brillouin optical time-domain reflectometer based on electro-optic modulation technology.The microwave signal is loaded onto the optical signal in a double-sided band modulation manner and power attenuation is performed to simulate the Brillouin frequency shift signal generated in actual fiber optic links.By adjusting the frequency of the input signal of the microwave source,the frequency of the modulation sideband signal is adjusted to achieve calibration of Brillouin frequency shift parameters at different frequency points within large frequency range.According to experimental verification and uncertainty analysis,the measurement uncertainty of the Brillouin frequency shift is 0.04 MHz(k=2),which meets the traceability requirements of the Brillouin frequency shift for Brillouin optical time-domain reflectometer.关键词
光学计量/光纤传感/布里渊频移/电光调制/光时域反射仪/微波频率Key words
optical metrology/optical fiber sensor/Brillouin frequency shift/electrooptic modulation/optical time-domain reflectometer/microwave frequency分类
通用工业技术引用本文复制引用
孙小强,周轩羽,傅栋博,陈龙泉,张大元..基于电光调制的布里渊光时域反射仪频移参数校准方法[J].计量学报,2025,46(10):1470-1474,5.基金项目
国家重点研发计划(2022YFF0605903) （2022YFF0605903）
