期刊
PHOTONICS
卷 9, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/photonics9040215
关键词
orbital angular momentum; vortex beam; solid-state laser; intra-cavity generation
类别
资金
- National Natural Science Foundation of China [11834001, 61905012]
- National Defense Basic Scientific Research Program of China [JCKY2020602C007]
- National Postdoctoral Program for Innovative Talents [BX20190036]
- Beijing Institute of Technology Research Fund Program for Young Scholars
In this review, intra-cavity generation approaches to vortex beams in solid-state lasers are summarized, and our research on 1.6μm eye-safe vector vortex lasers is introduced.
Vortex beams (VBs) are structured beams with helical wavefronts carrying orbital angular momentum (OAM) and they have been widely used in lots of domains, such as optical data-transmission, optical tweezer, quantum entanglement, and super-resolution imaging. The ability to generate vortex beams with favorable performance is of great significance for these advanced applications. Compared with extra-cavity schemes, such as spatial light modulation, mode conversion, and others which transform other modes into vortex modes, solid-state vortex lasers can output vortex beams directly and show advantages including a compact structure, high robustness, easy to integrate, and low cost. In this review, we summarize intra-cavity generation approaches to vortex beams in solid-state lasers. Our work on 1.6 mu m eye-safe vector vortex lasers is also introduced.
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