双程后向结构掺铒光纤光源的实验研究  

Experimental investigation on Erbium-doped fiber source in double-pass backward configuration

作　　者：吴旭[1] 阮双琛[1] 刘承香[1] 张力[2] 

机构地区：[1]深圳大学电子科学与技术学院深圳市激光工程重点实验室,深圳518060 [2]深圳大学信息工程学院,深圳518060

出　　处：《中国惯性技术学报》2012年第6期720-724,共5页Journal of Chinese Inertial Technology

基　　金：武器装备预研基金项目(9140A09010208QT5101)

摘　　要：为了获得高稳定光纤陀螺掺铒光纤光源,分析了光源平均波长受温度变化的主要影响因素,实验研究了双程后向结构光源平均波长温度稳定性。主要通过优化铒纤长度和泵浦功率来减小铒纤本征温度系数及泵浦功率对光源平均波长温度稳定性的影响。同时分析了铒纤长度和泵浦功率对光源的平均波长、输出功率和谱宽的影响,最终选取掺铒光纤光源在双程后向结构下的铒纤优化长度10.1 m和泵浦优化功率160 mW。测量了10.1 m铒纤的本征温度系数为0.434×10-6/C。研制了掺铒光纤光源整机,对其进行温度稳定性测试,获得了平均波长稳定性1.18×10-6/C高稳定双程后向掺铒光纤光源。In order to obtain high stability erbium-doped fiber source（EDFS） of fiber optic gyroscope,the influence factors of temperature changes on the mean wavelength were theoretically analyzed.The mean wavelength temperature stability of double-pass backward（DPB） EDFS was studied experimentally.The influences of the fiber intrinsic thermal coefficients and pump powers on the mean wavelength temperature stability of EDFS were reduced by the optimization of erbium-doped fiber length and pump power.Simultaneously,the influences of fiber lengths and pump powers on mean wavelength,output power and spectral width of EDFS were analyzed.The optimized choices of the 10.1 m erbium-doped fiber and 160 mW pump power in DPB fiber source were confirmed.The measured intrinsic thermal coefficient of the 10.1 m erbium-doped fiber was 0.434×10-6/？C.The prototype of erbium-doped fiber source was manufactured,and the temperature stability was tested in different temperatures.The high mean-wavelength stability of DPB erbium-doped fiber source with 1.18×10-6/？C was obtained.

关 键 词：光学器件 掺铒光纤光源 本征温度系数 平均波长稳定性 

分 类 号：U666.1[交通运输工程—船舶及航道工程]