Distributed Fiber Birefringence Measurement Using Pulse-CompressionФ-OTDR  

作　　者：Yongxiang CHEN Yun FU Ji XIONG Zinan WANG 

机构地区：[1]Key Lab of Optical Fiber Sensing&Communications,University of Electronic Science,Technology of China,Chengdu 611731,China

出　　处：《Photonic Sensors》2021年第4期402-410,共9页光子传感器（英文版）

摘　　要：In this paper,a novel birefringence measurement method through the Rayleigh backscattered lightwave within single-mode fiber is proposed,using a single chirped-pulse with arbitrary state of polarization.Numerical analysis is carried out in detail,then pulse-compression phase-sensitive optical time domain reflectometry(PC-O-OTDR)with polarization-diverse coherent detection is employed to verify this method.A 2 km spun single-mode fiber is tested with 8.6cm spatial resolution,and the average birefringence of the fiber under test is measured as 0.234rad/m,which is consistent with previous literatures about single-mode fiber.Moreover,the relationship between the measured birefringence and the spatial resolution is also studied for the first time,and the results show that spatial resolution is crucial for fiber birefringence measurement.

关 键 词：BIREFRINGENCE Rayleigh scattering PULSE-COMPRESSION phase-sensitive optical time-domain reflectometiy coherent detection polarization-diverse receiver 

分 类 号：TN253[电子电信—物理电子学]