一种微结构八边形光子晶体光纤  

Design of microstructure octagonal photonic crystal fiber

作　　者：廖昆 颜义萱 辛政 李芳 LIAO Kun;YAN Yixuan;XIN Zheng;LI Fang(School of Mechanical and Electronic Engineering,Pingxiang University,Pingxiang 337055,China)

机构地区：[1]萍乡学院机械电子工程学院,江西萍乡337055

出　　处：《量子电子学报》2024年第5期830-837,共8页Chinese Journal of Quantum Electronics

基　　金：江西省教育厅项目(GJJ191155,GJJ2202123)。

摘　　要：本文设计了一款微结构八边形光子晶体光纤(PCF),并基于有限元法研究了该结构光纤基模的色散特性、非线性特性及限制损耗特性。研究结果表明:通过适当调节该光纤的结构参数,在波长为1.55μm处,出现了一个零色散点,并且在该波长处,得到高非线性系数值94.97 W^(-1)·km^(-1)以及低限制损耗值3.065×10^(-6)dB/km。该设计为在1.55μm处得到零色散点、高非线性、低损耗的光子晶体光纤提供了理论指导,在色散控制、非线性光学等领域具有潜在的应用前景。A photonic crystal fiber(PCF)with octagonal microstructure is designed in this paper,and the characteristics of the fundamental mode of the fiber,such as dispersion,nonlinear coefficient and confinement lose,are studied based on the finite element method.The results show that,by properly adjusting the structural parameters of the fiber,there is a zero dispersion point at a wavelength of 1.55μm,and at this wavelength,it has highly nonlinear coefficient of 94.97 W^(-1)·km^(-1) and low confinement lose of 3.065×10^(-6) dB/km.This design provides theoretical guidance for obtaining zero dispersion,highly nonlinearity and low confinement lose at a wavelength of 1.55μm,and has potential applications in dispersion control,nonlinear optics,and other fields.

关 键 词：光纤光学 光子晶体光纤 零色散 高非线性 低损耗 有限元法 

分 类 号：TN253[电子电信—物理电子学]