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Proceedings Paper

Investigation of bulk laser damage in transparent YAG ceramics controlled with microstructural refinement
Author(s): T. Kamimura; Y. Kawaguchi; T. Arii; W. Shirai; T. Mikami; T. Okamoto; Yan Lin Aung; A. Ikesue
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Paper 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.

Paper Details

Date Published: 30 December 2008
PDF: 5 pages
Proc. SPIE 7132, Laser-Induced Damage in Optical Materials: 2008, 713215 (30 December 2008); doi: 10.1117/12.804416
Show Author Affiliations
T. Kamimura, Osaka Institute of Technology (Japan)
Y. Kawaguchi, Osaka Institute of Technology (Japan)
T. Arii, Osaka Institute of Technology (Japan)
W. Shirai, Osaka Institute of Technology (Japan)
T. Mikami, Okamoto Optics Co., Ltd. (Japan)
T. Okamoto, Okamoto Optics Co., Ltd. (Japan)
Yan Lin Aung, World Lab Co., Ltd. (Japan)
A. Ikesue, World Lab Co., Ltd. (Japan)


Published in SPIE Proceedings Vol. 7132:
Laser-Induced Damage in Optical Materials: 2008
Gregory J. Exarhos; Detlev Ristau; M. J. Soileau; Christopher J. Stolz, Editor(s)

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