零双折射温度敏感系数保偏光子晶体光纤研究  

Study of Polarization-Maintaining Photonic Crystal Fibers with Zero Birefringent Temperature Sensitive Coefficient

作　　者：陆林[1] 杨远洪[1,2] 李红颖[1] 

机构地区：[1]北京航空航天大学精密光机电一体化技术教育部重点实验室,北京100191 [2]北京航空航天大学惯性技术国防科技重点实验室,北京100191

出　　处：《光学学报》2015年第10期80-85,共6页Acta Optica Sinica

基　　金：国家重大科学仪器设备开发专项(2013YQ04081504);创新团队发展计划(IRT1203)

摘　　要：分析了影响保偏光子晶体光纤(PM-PCF)双折射温度敏感性的因素,利用有限元法仿真研究了热光效应和热膨胀效应对典型的实心结构PM-PCF双折射温度敏感系数的影响。结果表明在-150℃^+150℃的工作温度范围内,热光效应对双折射的影响可以忽略。得到了这种PM-PCF双折射温度敏感系数与相邻空气小孔圆心距离Λ的多项式模型,在Λ=5.24μm时,双折射的温度敏感系数为零。制作了5根不同Λ的PM-PCF样品,采用基于混合Sagnac干涉仪的测量技术分别测试了样品光纤双折射值随温度的变化,在Λ=5.16μm时,双折射的温度敏感系数为零,与仿真结果吻合。The factors that affect the temperature sensitivity of typical polarization-maintaining photonic crystal fibers （PM-PCF） are analyzed. By using the finite elements method, the influence of temperature on the birefringence of the typical solid core PM-PCF is studied, which mainly includes thermo-optic effects and thermal expansion. The results show that the thermo-optic effects can be neglected and the temperature sensitivity of birefringence can be represented only by a polynomial function of the center distance of adjacent air holes A under the working temperature from - 150 ℃to 150℃. The birefringence increases with A and becomes zero at A =5.16 μm. The compact hybrid Sagnac interferometer is used to measure the birefringence of five PM-PCF samples with different A under different temperatures. The experimental results conform well to the simulation.

关 键 词：光纤光学 保偏光子晶体光纤 双折射 温度敏感系数 

分 类 号：TB133[机械工程—光学工程]