3×1光子灯笼实现30 μm纤芯光纤激光模式控制

Yao, 陆瑶 Lu; Zongfu, 姜宗福 Jiang; Wenguang, 刘文广 Liu; Zilun, 陈子伦 Chen; Man, 姜曼 Jiang; Qiong, 周琼 Zhou; Jiangbin, 张江彬 Zhang

doi:10.3788/aos202141.1736001

光学学报

2021

DOI: 10.3788/aos202141.1736001

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3×1光子灯笼实现30 μm纤芯光纤激光模式控制

陆瑶 Lu Yao¹,

姜宗福 Jiang Zongfu²,

刘文广 Liu Wenguang³

et al.

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Spatial mode control based on photonic lanterns

Liu

Chen

et al. 2021

Opt. Express

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We demonstrate two critical rules of designing photonic lanterns for applications in adaptive spatial mode control: (1) optimized input fiber arrangements to effectively control modes; (2) appropriate input fiber core-cladding ratio to expand the optional range of the output fiber. The 3×1 and 5×1 photonic lanterns according to above design requirements have been fabricated. Using stochastic parallel gradient descent algorithm, the phases of the inputs are actively modulated to stabilize the output of novel 5×1 photonic lantern with 30/125 µm output fiber. When the control target is the fundamental mode, the M2 factor of output beam is below 1.2 stably, which will provide a possible technical solution to increase the mode instability threshold in large mode area fiber laser systems. Furthermore, we obtain single orbital angular momentum mode (OAM01 or OAM02 mode) and high order linearly polarized mode (LP11 or LP21 mode) with the purity of the corresponding modes over 0.85 by altering evaluation function, which will be of benefit in optical communication and atomic optics.

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Spatial mode control based on photonic lanterns

Liu

Chen

et al. 2021

Opt. Express

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基于光子灯笼的全光纤空间模式生成与自适应控制

Jiang Zongfu,

Lu Yao,

Liu Wenguang

et al. 2023

光学学报

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激光光束整形技术研究进展

Qi Yan,

Zhu Yingjie,

Zhang Jing

et al. 2024

激光与光电子学进展

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3×1光子灯笼实现30 μm纤芯光纤激光模式控制

Cited by 3 publications

References 0 publications

Spatial mode control based on photonic lanterns

Spatial mode control based on photonic lanterns

基于光子灯笼的全光纤空间模式生成与自适应控制

激光光束整形技术研究进展

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