Development of Nd:YAG ceramic lasers

Jianren Lu; Junhua Lu; T. Murai; K. Takaichi; T. Uematsu; K. Ueda; H. Yagi; T. Yanagitani; Y. Akiyama; A. A. Kaminskii

doi:10.1364/ASSL.2002.WE1

Advanced Solid-State Lasers
Trends in Optics and Photonics Series (Optica Publishing Group, 2002),
paper WE1
•https://doi.org/10.1364/ASSL.2002.WE1

Development of Nd:YAG ceramic lasers

Jianren Lu, Junhua Lu, T. Murai, K. Takaichi, T. Uematsu, K. Ueda, H. Yagi, T. Yanagitani, Y. Akiyama, and A. A. Kaminskii

Advanced Solid State Lasers 2002

Québec City Canada
3–6 February 2002
ISBN: 1-55752-697-4

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J. Lu, J. Lu, T. Murai, K. Takaichi, T. Uematsu, K. Ueda, H. Yagi, T. Yanagitani, Y. Akiyama, and A. A. Kaminskii, "Development of Nd:YAG ceramic lasers," in Advanced Solid-State Lasers, M. Fermann and L. Marshall, eds., Vol. 68 of Trends in Optics and Photonics Series (Optica Publishing Group, 2002), paper WE1.

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Abstract

Highly transparent Nd:YAG ceramics were fabricated using vacuum sintering method where the raw powder was prepared by nanocrystalline technology. Optical properties were investigated and compared with those of YAG single crystals, almost identical results were obtained. The thermal conductivity of Nd:YAG ceramic was measured and the result was similar to that of Nd:YAG single crystal. End-pumped Nd:YAG ceramic laser were developed. Slope efficiencies of 61% and 58% were obtained for 1% and 2% Nd:YAG ceramic lasers. Just recently, high power 1.46 kW Nd:YAG ceramic laser was developed with an optical-to-optical efficiency of 42%.

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