Affiliation:
1. University of South Wales
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.
Funder
National Natural Science Foundation of China
Guangdong Provincial Key Laboratory of New and Renewable Energy
Foshan Science and Technology Bureau
Subject
Atomic and Molecular Physics, and Optics
Cited by
3 articles.
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