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

作　　者：Chuchu Dong Jinhai Zou Hongjian Wang Han Yao Xianglong Zeng Yikun Bu Zhengqian Luo 董楚楚;邹金海;王鸿健;尧涵;曾祥龙;卜轶坤;罗正钱(Department of Electronic Engineering,Xiamen University,Xiamen 361005,China;The Key Laboratory of Specialty Fiber Optics and Optical Access Network,Shanghai University,Shanghai 200444,China)

机构地区：[1]Department of Electronic Engineering,Xiamen University,Xiamen 361005,China [2]The Key Laboratory of Specialty Fiber Optics and Optical Access Network,Shanghai University,Shanghai 200444,China

出　　处：《Chinese Physics B》2020年第9期136-141,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.91750115 and 91750108);the Equipment Pre-research Project of Equipment Development Department of Central Military Commission,China(Grant No.61404140112);the Science and Technology Planning Project of Xiamen City,China(Grant No.3502Z20183003).

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 LP01 to LP11 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.

关 键 词：fiber laser vortex laser mode selective coupler VISIBLE-LIGHT 

分 类 号：TN248[电子电信—物理电子学]