高双折射低色散光子晶体光纤设计  

Design of photonic crystal fiber with high birefringence and low dispersion

作　　者：邸志刚 王彪 杨健倓 贾春荣 姚建铨[2] 陆颖[2] DI Zhigang;WANG Biao;YANG Jiantan;JIA Chunrong;YAO Jianquan;LU Ying(College of Electrical Engineering,North China University of Science and Technology,Tangshan Hebei 063210,China;Key Lab.of Optoelectronics Information Science and Technology,Ministry of Education,College of Precision Instrument and Optoelectronics Engineerings Tianjin University,Tianjin 300072,China)

机构地区：[1]华北理工大学电气工程学院,河北唐山063210 [2]天津大学精密仪器与光电工程学院教育部光电信息科学与技术重点实验室,天津300072

出　　处：《激光杂志》2021年第1期25-28,共4页Laser Journal

基　　金：国家重点基础研究发展计划(973计划)(No.2010CB327801);河北省食品药品监督管理局科技计划重点项目(No.ZD2015016);河北省高等学校科学技术研究项目(No.QN2016079);华北理工大学培育基金(No.SP201502)。

摘　　要：为了高效传输太赫兹(Terahertz,THz)波并促进太赫兹的实际应用。提出了一种具有高双折射,低色散特性的太赫兹光子晶体光纤(Photonic Crystal Fiber,PCF)。利用全矢量有限元法对所提出的PCF结构进行数值仿真,分析了结构参数与双折射以及色散的关系。仿真结果表明,该光纤在0.9~1.3 THz可获得10-2数量级的高双折射和较低的色散,频率为1 THz时双折射可高达0.0318,同时在1.1~1.3 THz,可获得0.8±0.45ps/(THz·cm)的色散。In order to efficiently transmit terahertz(THz)wave and promote the practical application of terahertz wave.A terahertz photonic crystal fiber(PCF)with high birefringence and low dispersion was proposed.The full-vector finite element method was used to numerically simulate the proposed PCF structure,and the relationships of structure parameters between birefringence and dispersion were analyzed.The simulation results show that the fiber can obtain a high birefringence of 10-2 at 0.9~1.3 THz.Furthermore,the birefringence can be as high as 0.0318 when the frequency is 1 THz.Meanwhile,the flat dispersion of 0.8±0.45 ps/(THz·cm)can be obtained at 1.1~1.3 THz.

关 键 词：光子晶体光纤 双折射 色散 太赫兹 

分 类 号：TN253[电子电信—物理电子学] TN253