Microstructure ring fiber for supporting higher-order orbital angular momentum modes with flattened dispersion in broad waveband

被引：21

作者：

Huang, Shu-Hong ^{[1
,2
]}

Ma, Qi-Chang ^{[1
,2
]}

Chen, Wei-Cheng ^{[3
]}

Liu, Hong-Zhan ^{[1
,2
]}

Xing, Xiao-Bo ^{[4
,5
]}

Cui, Hu ^{[1
,2
]}

Luo, Zhi-Chao ^{[1
,2
]}

Xu, Wen-Cheng ^{[1
,2
]}

Luo, Ai-Ping ^{[1
,2
]}

机构：

[1] South China Normal Univ, Guangdong Prov Key Lab Nanophoton Funct Mat & Dev, Guangzhou 510006, Guangdong, Peoples R China

[2] South China Normal Univ, Guangzhou Key Lab Special Fiber Photon Devices &, Guangzhou 510006, Guangdong, Peoples R China

[3] Foshan Univ, Sch Phys & Optoelect Engn, Foshan 528000, Peoples R China

[4] South China Normal Univ, Key Lab Laser Life Sci, Educ Minist, Guangzhou 510631, Guangdong, Peoples R China

[5] South China Normal Univ, Inst Laser Life Sci, Guangzhou 510631, Guangdong, Peoples R China

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2019年 / 125卷 / 11期

基金：

中国国家自然科学基金;

关键词：

PHOTONIC CRYSTAL FIBER; OPTICAL-FIBER; CORE FIBERS; DESIGN; LIGHT; GENERATION; TRANSMISSION; BEAMS;

D O I：

10.1007/s00340-019-7307-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We design and numerically simulate a microstructure ring fiber, which supports 146 orbital angular momentum (OAM) modes at 1.1 mu m and 70 OAM modes at 2.0 mu m with flattened dispersion and low nonlinear coefficient. The fiber consists of an air hole at the center and a high refractive index ring between two well-ordered air hole rings in the cladding. It is found that the number of well-separated OAM modes decreases linearly with the increasing wavelength. Moreover, the waveguide dispersions of the modes are flat with wavelengths, which has a minimum variation of 2.92416 ps/nm/km over 900 nm bandwidth from 1.1 to 2.0 mu m for HE13,1 mode. In addition, the nonlinear coefficient keeps lower than 1.8/W/km. The designed fiber may pave the way to applications in fiber-based OAM mode-division-multiplexing systems.

引用

页数：8

共 41 条

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Agrawal G., 2010, Nonlinear Fiber Optics, Vfourth

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