| 2 | Distributed Fiber Birefringence Measurement Using Pulse-CompressionФ-OTDR显示文摘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. | Yongxiang CHEN Yun FU Ji XIONG Zinan WANG | 2021 | Photonic Sensors2021，11，4： | 0 |
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