Design of high-birefringence photonic crystal fiber based on As2Se3

被引：0

作者：

Yan, Xin ^{[1
]}

Weng, Kun ^{[1
]}

Cheng, Tonglei ^{[1
]}

机构：

[1] Northeastern Univ, Coll Informat Sci & Engn, State Key Lab Synthet Automat Proc Ind, Shenyang, Liaoning, Peoples R China

来源：

OPTICAL ENGINEERING | 2022年 / 61卷 / 01期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

photonic crystal fiber; birefringence; nonlinearity; As2Se3; SUPERCONTINUUM GENERATION; DISPERSION; NONLINEARITY; AREA;

D O I：

10.1117/1.OE.61.1.016106

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A photonic crystal fiber is designed with chalcogenide glass As2Se3 as the base material. As2Se3 has a high refractive index and a high nonlinear refractive index; as a result, it has a desired application for strengthening birefringence and nonlinearity. The outer layer of the fiber is a regular decagonal structure composed of four layers of circular air holes, and the inner cladding area is composed of four elliptical air holes arranged in a diamond pattern. The influence of the size of the circular air holes in the fiber cladding, the thickness between each layer, and the size and position of the elliptical air holes in the inner cladding area on the birefringence is analyzed and studied using the full vector finite element method. The results show that the birefringence value of the fundamental mode of the fibers is 0.108 at a wavelength of 1.55 mu m, and at the same time, the nonlinear coefficients of the X and Y polarization states are 240 and 197 m(-1) . W-1, respectively. (C) 2022 Society of Photo-Optical Instrumentation Engineers (SPIE)

引用

页数：11

共 32 条

[1] Highly nonlinear polarization-maintaining photonic crystal fiber with nanoscale GaP strips [J].