Visible-light all-fiber vortex lasers based on mode selective couplers*

被引：6

作者：

Dong, Chuchu ^{[1
]}

Zou, Jinhai ^{[1
]}

Wang, Hongjian ^{[1
]}

Yao, Han ^{[2
]}

Zeng, Xianglong ^{[2
]}

Bu, Yikun ^{[1
]}

Luo, Zhengqian ^{[1
]}

机构：

[1] Xiamen Univ, Dept Elect Engn, Xiamen 361005, Peoples R China

[2] Shanghai Univ, Key Lab Specialty Fiber Opt & Opt Access Network, Shanghai 200444, Peoples R China

来源：

CHINESE PHYSICS B | 2020年 / 29卷 / 09期

基金：

中国国家自然科学基金;

关键词：

fiber laser; vortex laser; mode selective coupler; visible-light; ORBITAL ANGULAR-MOMENTUM; GENERATION; BEAMS; POWER;

D O I：

10.1088/1674-1056/aba278

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate visible-light all-fiber vortex lasers by incorporating the home-made mode selective couplers (MSCs). The MSC at green or red wavebands is fabricated by specially designing and fusing a single-mode fiber (SMF) and a few-mode fiber (FMF). The MSCs inserted into visible fiber cavities act as power splitters and mode converters from the LP(01)to LP(11)mode at green and red wavelengths, respectively. The red-light all-fiber vortex laser is formed by a 10-cm Pr3+/Yb3+:ZBLAN fiber, a fiber Bragg grating, a fiber end-facet mirror and the MSC at 635 nm, which generates vortex beams with OAM(+/- 1)at 634.4 nm and an output power of 13 mW. The green-light all-fiber vortex laser consists of a 12-cm Ho3+:ZBLAN fiber, two fiber pigtail mirrors, and the MSC at 550 nm, which generates vortex beams with OAM(+/- 1)at 548.9 nm and an output power of 3 mW.

引用

页数：6

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