Investigation of bulk laser damage in transparent YAG ceramics controlled with microstructural refinement

T. Kamimura; Y. Kawaguchi; T. Arii; W. Shirai; T. Mikami; T. Okamoto; Yan Lin Aung; A. Ikesue

doi:10.1117/12.804416

30 December 2008 Investigation of bulk laser damage in transparent YAG ceramics controlled with microstructural refinement

T. Kamimura, Y. Kawaguchi, T. Arii, W. Shirai, T. Mikami, T. Okamoto, Yan Lin Aung, A. Ikesue

Author Affiliations +

Proceedings Volume 7132, Laser-Induced Damage in Optical Materials: 2008; 713215 (2008) https://doi.org/10.1117/12.804416
Event: Boulder Damage Symposium XL Annual Symposium on Optical Materials for High Power Lasers, 2008, Boulder, Colorado, United States

Abstract

We have investigated a relationship among the bulk laser-induced damage threshold (LIDT) and YAG ceramics with various structural defects. The correlation of scattering defect density and laser damage resistance was clearly observed. A high-quality YAG ceramic having a low-scattering density showed a higher LIDT than that of a low-quality YAG ceramic. Laser damage threshold (LIDT) of high-quality YAG ceramic was almost the same as that of a single crystal. In addition, the high-quality Nd:YAG ceramics with low-defect density showed an excellent oscillation efficiency which was comparable to that of a single crystal. Thus, high-quality YAG ceramic with low-defect density is more reliable as a material which is highly resistant to laser damage.

Citation Download Citation

T. Kamimura, Y. Kawaguchi, T. Arii, W. Shirai, T. Mikami, T. Okamoto, Yan Lin Aung, and A. Ikesue "Investigation of bulk laser damage in transparent YAG ceramics controlled with microstructural refinement", Proc. SPIE 7132, Laser-Induced Damage in Optical Materials: 2008, 713215 (30 December 2008); https://doi.org/10.1117/12.804416

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