High-efficiency cavity-dumped micro-chip Yb:YAG laser

M. Nishio; A. Maruko; M. Inoue; M. Takama; S. Matsubara; H. Okunishi; K. Kato; K. Kyomoto; T. Yoshida; K. Shimabayashi; M. Morioka; S. Inayoshi; S. Yamagata; S. Kawato

doi:10.1117/12.2073668

22 September 2014 High-efficiency cavity-dumped micro-chip Yb:YAG laser

M. Nishio, A. Maruko, M. Inoue, M. Takama, S. Matsubara, H. Okunishi, K. Kato, K. Kyomoto, T. Yoshida, K. Shimabayashi, M. Morioka, S. Inayoshi, S. Yamagata, S. Kawato

Author Affiliations +

Proceedings Volume 9238, Pacific Rim Laser Damage 2014: Optical Materials for High-Power Lasers; 92380K (2014) https://doi.org/10.1117/12.2073668
Event: Pacific-rim Laser Damage, 2014, Yokohama, Japan

Abstract

High-efficiency cavity-dumped ytterbium-doped yttrium aluminum garnet (Yb:YAG) laser was developed. Although the high quantum efficiency of ytterbium-doped laser materials is appropriate for high-efficiency laser oscillation, the efficiency is decreased by their quasi-three/four laser natures. High gain operation by high intensity pumping is suitable for high efficiency oscillation on the quasi-three/four lasers without extremely low temperature cooling. In our group, highest efficiency oscillations for continuous wave, nanosecond to picosecond pulse lasers were achieved at room temperature by the high gain operation in which pump intensities were beyond 100 kW/cm².

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M. Nishio, A. Maruko, M. Inoue, M. Takama, S. Matsubara, H. Okunishi, K. Kato, K. Kyomoto, T. Yoshida, K. Shimabayashi, M. Morioka, S. Inayoshi, S. Yamagata, and S. Kawato "High-efficiency cavity-dumped micro-chip Yb:YAG laser", Proc. SPIE 9238, Pacific Rim Laser Damage 2014: Optical Materials for High-Power Lasers, 92380K (22 September 2014); https://doi.org/10.1117/12.2073668

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