Chinese Journal of Quantum Electronics ›› 2026, Vol. 43 ›› Issue (5): 690-705.doi: 10.3969/j.issn.1007-5461.2026.05.002

• Review • Previous Articles     Next Articles

Research progress in YAG crystal element processing technology

MA Rongguo 1,2,3, ZHANG Qingli 1,3*, GAO Jinyun 1,3, SUN Guihua 1,3, DOU Renqin 1,3, HAN Song 1,3, ZHANG Rui 1,3, CHEN Zhao 1,2,3, WANG Xiaofei 1,3, ZHANG Deming 1,3, SUN Yu 1,3, LIU Wenpeng 1,3   

  1. 1 Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China; 2 University of Science and Technology of China, Hefei 230026, China; 3 Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China
  • Received:2023-05-18 Revised:2023-06-26 Published:2026-09-28 Online:2026-09-30

Abstract: YAG crystal elements are the core components of high-power all-solid-state lasers, and their optical processing quality directly affects the performance and lifetime of the laser. Therefore, research on the processing methods and techniques of YAG crystal elements is critical for the development of highpower all-solid-state lasers. In this review, the processing difficulties of YAG crystal elements, especially slab YAG crystal elements, are analyzed firstly, and two lapping methods, free abrasive lapping and fixed abrasive lapping, are introduced. Subsequently, focusing on the key polishing process, the working principles, research progress, achievements, advantages and disadvantages of several typical polishing methods are outlined comprehensively from two aspects: global polishing and local deterministic polishing. Finally, the development trends of YAG crystal element processing technology are discussed.

Key words: optical machining, yttrium aluminum garnet (YAG) crystal, lapping, polishing, all-solidstate laser, slab element

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