高双折射光子晶体光纤设计及分析  

Design and analysis of photonic crystal fiber with high birefringence

作　　者：赵丽娟[1,2,3] 赵海英 梁若愚 徐志钮 ZHAO Lijuan;ZHAO Haiying;LIANG Ruoyu;XU Zhiniu(School of Electrical and Electronic Engineering,North China Electric Power University,Baoding,Hebei 071003,China;Hebei Key laboratory of Power Internet of Things Technology,North China Electric Power University,Baoding.Hebei 071003,China;Baoding Key laboratory of Optical fiber sensing and optical communication Technology,North China Electric Power University,Baoding,Hebei 071003,China)

机构地区：[1]华北电力大学电气与电子工程学院,河北保定071003 [2]华北电力大学河北省电力物联网技术重点实验室,河北保定071003 [3]华北电力大学保定市光纤传感与光通信技术重点实验室,河北保定071003

出　　处：《光电子．激光》2021年第7期687-695,共9页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金(51607066,61775057);河北省自然科学基金(E2020502010,E2019502177);中央高校基本科研业务费专项资金(2019MS085)资助项目。

摘　　要：为进一步提高光纤传输特性,设计了两种具有高双折射的新型光子晶体光纤,构建了光纤的模型。通过有限元法对光纤模型进行数值计算并研究了光纤结构参数对基模色散、双折射、限制性损耗、非线性系数等传输特性的影响。研究表明,在波长为1550 nm处,本文所设计的两种光纤分别可获得高达3.676×10^(-2)和4.477×10^(-2)的双折射,两种光纤的限制性损耗都保持在10-8 dB/m数量级及以下,且都具有较低的非线性系数。因此,光纤传输性能的优化使得其更有利于光信号的长距离稳定传输,可应用于高速光通信、光纤传感、色散补偿等领域。To further improve the optical fiber transmission property,this paper proposes two kinds of photonic crystal fibers with high birefringence and constructs the model of the fiber.The finite element method is used to numerically calculate the fiber model and the influence of fiber structure parameters on transmission properties such as dispersion,birefringence,confinement loss and nonlinear coefficient of fundamental mode are studied.The study shows that the two kinds of photonic crystal fibers designed in this paper can obtain birefringence up to 3.676×10^(-2) and 4.477×10^(-2) respectively,the confinement loss of both types of fibers is kept at the order of magnitude of 10-8 dB/m or below,and both have low nonlinear coefficients at the wavelength of 1550 nm.Therefore,the optimization of optical fiber transmission property makes it more beneficial to the stable transmission of optical signals over long distances,and can be applied to high-speed optical communication,optical fiber sensing,dispersion compensation and other fields.

关 键 词：高双折射 低限制性损耗 光子晶体光纤 有限元法 

分 类 号：TN253[电子电信—物理电子学]