Erbium-doped amplification in circular photonic crystal fiber supporting orbital angular momentum modes

被引：28

作者：

Deng, Yifan ^{[1
]}

Zhang, Hu ^{[1
,2
]}

Li, Hui ^{[1
]}

Tang, Xianfeng ^{[1
]}

Xi, Lixia ^{[1
]}

Zhang, Wenbo ^{[1
,3
]}

Zhang, Xiaoguang ^{[1
]}

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：

APPLIED OPTICS | 2017年 / 56卷 / 06期

基金：

中国国家自然科学基金;

关键词：

AMPLIFIER;

D O I：

10.1364/AO.56.001748

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a new orbital angular momentum (OAM) erbium-doped fiber amplifier based on a circular photonic crystal fiber, which can support a total of 18 modes (14 OAM modes) over C-band. A correction factor is proposed to modify the overlap factor, with the aim of evaluating the performance of the amplifier more accurately. We found that the confined doping profile can help optimize the differential model gain (DMG). Numerical simulations suggest that the proposed OAM fiber amplifier can provide a gain larger than 20 dB for all 14 OAM modes, with the small DMG less than 0.2 dB and the noise figure lower than 3.5 dB across the C-band. (C) 2017 Optical Society of America

引用

页码：1748 / 1752

页数：5

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