4.6 Review

Optical Crystals for 1.3 μm All-Solid-State Passively Q-Switched Laser

期刊

CRYSTALS
卷 12, 期 8, 页码 -

出版社

MDPI
DOI: 10.3390/cryst12081060

关键词

optical crystals; 1.3 mu m laser; passively Q-switched laser; all-solid-state-laser; saturable absorber

资金

  1. Science and Technology Development Project of Jilin Province [20200401060GX, 20210201028GX, 20200501008GX]

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This review focuses on the recent advances in optical crystals for 1.3 μm all-solid-state passively Q-switched lasers. The properties of three types of optical crystals and other crystals are introduced, and the research progress both domestically and abroad is summarized. The future challenges and development trends of 1.3 μm laser crystals are proposed.
In recent years, optical crystals for 1.3 mu m all-solid-state passively Q-switched lasers have been widely studied due to their eye-safe band, atmospheric transmission characteristics, compactness, and low cost. They are widely used in the fields of high-precision laser radar, biomedical applications, and fine processing. In this review, we focus on three types of optical crystals used as the 1.3 mu m laser gain media: neodymium-doped vanadate (Nd:YVO4, Nd:GdVO4, Nd:LuVO4, neodymium-doped aluminum-containing garnet (Nd:YAG, Nd:LuAG), and neodymium-doped gallium-containing garnet (Nd:GGG, Nd:GAGG, Nd:LGGG). In addition, other crystals such as Nd:KGW, Nd:YAP, Nd:YLF, and Nd:LLF are also discussed. First, we introduce the properties of the abovementioned 1.3 mu m laser crystals. Then, the recent advances in domestic and foreign research on these optical crystals are summarized. Finally, the future challenges and development trend of 1.3 mu m laser crystals are proposed. We believe this review will provide a comprehensive understanding of the optical crystals for 1.3 mu m all-solid-state passively Q-switched lasers.

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