A design strategy of the circular photonic crystal fiber supporting good quality orbital angular momentum mode transmission

被引：101

作者：

Zhang, Hu ^{[1
,2
]}

Zhang, Xiaoguang ^{[1
]}

Li, Hui ^{[1
]}

Deng, Yifan ^{[1
]}

Zhang, Xia ^{[1
]}

Xi, Lixia ^{[1
]}

Tang, Xianfeng ^{[1
]}

Zhang, Wenbo ^{[1
,3
]}

机构：

[1] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China

[2] Beijing Univ Posts & Telecommun, Sch Ethn Minor Educ, Beijing 100876, Peoples R China

[3] Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2017年 / 397卷

基金：

中国国家自然科学基金;

关键词：

Fiber design and fabrication; Orbital angular momentum; Photonic crystal fibers; Multiplexing; RING-CORE FIBERS; GENERATION;

D O I：

10.1016/j.optcom.2017.03.075

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Based on 5 requirements which are essential for stable OAM mode transmission, we propose an OAM fiber family based on a structure of circular photonic crystal fiber (C-PCF). The proposed C-PCF in the family is made of pure silica, with a big round air hole at the center, several rings of air-hole array as the cladding, and a ring shaped silica area in between as the core where the OAM modes propagate. We also provide a design strategy with which the optimized C-PCF can be obtained with optimum number of high quality OAM modes (up to 42 OAM modes), large effective index separation for corresponding vector modes over a wide bandwidth, relative small and flat dispersion, and low nonlinear coefficient compared with a conventional single mode fiber. The designed fiber can be used in MDM communications and other OAM applications in fibers.

引用

页码：59 / 66

页数：8

共 33 条

[1] ORBITAL ANGULAR-MOMENTUM OF LIGHT AND THE TRANSFORMATION OF LAGUERRE-GAUSSIAN LASER MODES [J].