Chinese Physics B, Volume. 29, Issue 9, (2020)
Visible-light all-fiber vortex lasers based on mode selective couplers
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.
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Chuchu Dong, Jinhai Zou, Hongjian Wang, Han Yao, Xianglong Zeng, Yikun Bu, Zhengqian Luo. Visible-light all-fiber vortex lasers based on mode selective couplers[J]. Chinese Physics B, 2020, 29(9):
Received: Mar. 20, 2020
Accepted: --
Published Online: Apr. 29, 2021
The Author Email: Zeng Xianglong (zqluo@xmu.edu.cn)