Radiation-induced effects in polarization-maintaining optical fibers for interferometric gyroscope  

作　　者：王学勤 张春熹 金靖 宋凝芳 

机构地区：[1]Institute of Optics and Electronics, Beihang University

出　　处：《Chinese Optics Letters》2011年第6期21-23,共3页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China under Grant No. 61007040

摘　　要：Radiation-induced attenuation （RIA） in four types of polarization-maintaining optical fibers for interfer-ometric fiberoptic gyroscope （IFOG） at 1310 nm is measured. The measurements are conducted during and after steady-state γ-ray irradiation using a 60 Co source in order to observe significantly different RIA behavior and recovery kinetics. Mechanisms involving dopants and manufacturing process are introduced to analyze the RIA discrepancy as well as to guide the choice and hardening of optical fibers during the design of IFOG. Medium-accuracy IFOG using Ge–F-codoped fiber and pure silica core fiber can survive in the space radiation environment.Radiation-induced attenuation （RIA） in four types of polarization-maintaining optical fibers for interfer-ometric fiberoptic gyroscope （IFOG） at 1310 nm is measured. The measurements are conducted during and after steady-state γ-ray irradiation using a 60 Co source in order to observe significantly different RIA behavior and recovery kinetics. Mechanisms involving dopants and manufacturing process are introduced to analyze the RIA discrepancy as well as to guide the choice and hardening of optical fibers during the design of IFOG. Medium-accuracy IFOG using Ge–F-codoped fiber and pure silica core fiber can survive in the space radiation environment.

关 键 词：Doping (additives) Fiber optic sensors GERMANIUM GYROSCOPES Interferometry Optical fibers Polarization Radiation effects Silica 

分 类 号：TN253[电子电信—物理电子学]