摘要
为了研究太赫兹波在新型渐近式多孔光子晶体光纤的传输特性,采用有限元数值分析法进行了数值仿真,分析了有效模态面积、纤芯孔隙度对有效材料损失及限制损耗、功率分布分数等波导特性的影响.结果表明,在单模传输范围0.5THz^0.85THz内,通过在光纤上引入渐近矩形阵列气孔和椭圆空穴,实现了零色散、0.0532高双折射、有效材料损失为0.1157/cm,限制损耗低至1.47×10^-4dB/cm.此研究可用于制造极化THz波导、滤波器等,对新一代太赫兹波导实现长距离、高性能传输的研究具有重要意义.
In order to study transmission characteristics of terahertz wave in new asymptotic porous photonic crystal fibers, finite element numerical analysis method was used for numerical simulation. The effects of effective mode area and core porosity on effective material loss, confinement loss and power distribution fraction were analyzed. The results show that, within the range of 0. 5THz to 0. 85THz, by introducing an asymptotic rectangular array of holes and elliptical holes into the optical fiber, zero dispersion, high birefringence of 0. 0532, effective material loss of 0. 1157/cm and confinement loss of 1.47 ×10 ^-4 dB/cm are achieved. This study can be used to fabricate polarized THz waveguides, filters, etc. It is of great significance to study the long-distance and high-performance transmission of the new generation terahertz waveguides.
作者
汪成程
张峰
吴根柱
WANG Chengcheng;ZHANG Feng;WU Genzhu(College of Physics and Electronic Information Engineering,Zhejiang Normal University,Jinhua 321004,China;Xingzhi College,Zhejiang Normal University,Jinhua 321004 ,China)
出处
《激光技术》
CAS
CSCD
北大核心
2019年第6期768-772,共5页
Laser Technology
基金
浙江省自然科学基金资助项目(LY19F050015
LY19F050014)
关键词
光纤光学
光子晶体
有限元数值模拟
太赫兹
色散
fiber optics
photonic crystal fiber
finite element model
terahertz
dispersion
作者简介
汪成程(1994-),女,硕士研究生,现主要从事微腔传感的研究;通讯联系人:吴根柱.E-mail:wugenzhu@zjnu.cn.
