Amplification of orbital angular momentum modes in an erbium-doped solid-core photonic bandgap fiber

被引：7
作者：
Heng, Xiaobo [1 ,2 ,3 ]
Gan, Jiulin [1 ,2 ,3 ]
Zhang, Zhishen [1 ,2 ,3 ]
Qian, Qi [1 ,2 ,3 ]
Yang, Zhongmin [1 ,2 ,3 ]
机构：
[1] South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China
[2] Special Glass Fiber & Device Engn Technol Res & D, Guangzhou 510640, Guangdong, Peoples R China
[3] Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Guangzhou 510640, Guangdong, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2019年 / 433卷
基金：
中国国家自然科学基金;
关键词：
Optics vortices; Orbital angular momentum; Fiber amplifier; Solid-core photonic bandgap fiber; TRANSMISSION; ENTANGLEMENT; SPACE; LIGHT;
D O I：
10.1016/j.optcom.2018.09.072
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A new kind of erbium-doped solid-core photonic bandgap fiber (ED-SC-PBGF) for amplification of orbital angular momentum (OAM) modes is proposed and investigated. The configurations of annular erbium-doped profile with special design and multi pump modes are used to amplify the signal modes evenly. Using an optimized ED-SC-PBGF pumped with l = 1 and 2 modes, differential mode gains of 0.9 dB and gain of more than 20 dB can be achieved for l = 1 and 2 OAM signal modes across the full C-band. This OAM-in-fiber amplification techniques would have potential application in ultra-long distance and high capacity OAM optical communication systems and other systems that utilize high power OAM light.
引用
收藏
页码：132 / 136
页数：5
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