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

Kongtao Chen; Lixu Xu; Aodong Ni; Jiale Tang; Kaiwen Yi; 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 Yi, Fuqiang Jia^*, Dun Qiao, Kang Li, Nigel Copner

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

An adjustable optical vortex arrays (OVAs) 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
Article number	49014
Pages (from-to)	2599-2602
Journal	Optics Letters
Volume	48
Issue number	10
Early online date	14 Apr 2023
DOIs	https://doi.org/10.1364/OL.490194
Publication status	Published - 18 Apr 2023

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

abstract = "An adjustable optical vortex arrays (OVAs) 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 Yi and Fuqiang Jia and Dun Qiao and Kang Li and Nigel Copner",

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AU - Chen, Kongtao

AU - Xu, Lixu

AU - Ni, Aodong

AU - Tang, Jiale

AU - Yi, Kaiwen

AU - Jia, Fuqiang

AU - Qiao, Dun

AU - Li, Kang

AU - Copner, Nigel

PY - 2023/4/18

Y1 - 2023/4/18

N2 - An adjustable optical vortex arrays (OVAs) 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 arrays (OVAs) 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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JO - Optics Letters

JF - Optics Letters

IS - 10

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ER -

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

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