Generation of a vortex point adjustable vortex array based on decentered annular beam pumping

Kongtao Chen; Lixu Xu; Aodong Ni; Jiale Tang; Kaiwen Yin; Fuqiang Jia; Dun Qiao; Kang Li; Nigel Copner

doi:10.1364/OL.490194

Generation of a vortex point adjustable vortex array based on decentered annular beam pumping

Kongtao Chen, Lixu Xu, Aodong Ni, Jiale Tang, Kaiwen Yin, Fuqiang Jia, Dun Qiao, Kang Li, Nigel Copner

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Abstract

An adjustable optical vortex array (OVA) based on decentered annular beam pumping has been demonstrated in an end-pumped Nd:YVO4 laser. This method allows for not only the transverse mode locking of different modes, but also the ability to adjust the mode weight and phase by manipulating the position of the focusing lens and axicon lens. To explain this phenomenon, we propose a threshold model for each mode. Using this approach, we were able to generate optical vortex arrays with 2–7 phase singularities, achieving a maximum conversion efficiency of 25.8%. Our work represents an innovative advancement in the development of solid-state lasers capable of generating adjustable vortex points.

Original language	English
Pages (from-to)	2599-2602
Number of pages	4
Journal	Optics Letters
Volume	48
Issue number	10
DOIs	https://doi.org/10.1364/OL.490194
Publication status	Published - 05 May 2023
Externally published	Yes

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title = "Generation of a vortex point adjustable vortex array based on decentered annular beam pumping",

abstract = "An adjustable optical vortex array (OVA) based on decentered annular beam pumping has been demonstrated in an end-pumped Nd:YVO4 laser. This method allows for not only the transverse mode locking of different modes, but also the ability to adjust the mode weight and phase by manipulating the position of the focusing lens and axicon lens. To explain this phenomenon, we propose a threshold model for each mode. Using this approach, we were able to generate optical vortex arrays with 2–7 phase singularities, achieving a maximum conversion efficiency of 25.8%. Our work represents an innovative advancement in the development of solid-state lasers capable of generating adjustable vortex points.",

author = "Kongtao Chen and Lixu Xu and Aodong Ni and Jiale Tang and Kaiwen Yin and Fuqiang Jia and Dun Qiao and Kang Li and Nigel Copner",

note = "Funding Information: Funding. National Natural Science Foundation of China (61308053, 61411130312); Guangdong Provincial Key Laboratory of New and Renewable Energy (2020B121202003); Foshan Science and Technology Bureau. Publisher Copyright: {\textcopyright} 2023 Optica Publishing Group.",

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AU - Chen, Kongtao

AU - Xu, Lixu

AU - Ni, Aodong

AU - Tang, Jiale

AU - Yin, Kaiwen

AU - Jia, Fuqiang

AU - Qiao, Dun

AU - Li, Kang

AU - Copner, Nigel

N1 - Funding Information: Funding. National Natural Science Foundation of China (61308053, 61411130312); Guangdong Provincial Key Laboratory of New and Renewable Energy (2020B121202003); Foshan Science and Technology Bureau. Publisher Copyright: © 2023 Optica Publishing Group.

PY - 2023/5/5

Y1 - 2023/5/5

N2 - An adjustable optical vortex array (OVA) based on decentered annular beam pumping has been demonstrated in an end-pumped Nd:YVO4 laser. This method allows for not only the transverse mode locking of different modes, but also the ability to adjust the mode weight and phase by manipulating the position of the focusing lens and axicon lens. To explain this phenomenon, we propose a threshold model for each mode. Using this approach, we were able to generate optical vortex arrays with 2–7 phase singularities, achieving a maximum conversion efficiency of 25.8%. Our work represents an innovative advancement in the development of solid-state lasers capable of generating adjustable vortex points.

AB - An adjustable optical vortex array (OVA) based on decentered annular beam pumping has been demonstrated in an end-pumped Nd:YVO4 laser. This method allows for not only the transverse mode locking of different modes, but also the ability to adjust the mode weight and phase by manipulating the position of the focusing lens and axicon lens. To explain this phenomenon, we propose a threshold model for each mode. Using this approach, we were able to generate optical vortex arrays with 2–7 phase singularities, achieving a maximum conversion efficiency of 25.8%. Our work represents an innovative advancement in the development of solid-state lasers capable of generating adjustable vortex points.

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Generation of a vortex point adjustable vortex array based on decentered annular beam pumping

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