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Highly efficient frequency doubling of high-energy Nd:YAG laser using a CsB3O5 crystal |
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| Authors: | Masayuki Suzuki Hiromitsu Kiriyama Yoshiki Nakai Hajime Okada Yoshio Kagebayashi Paul R Bolton Shunichi Kawanishi |
| Institution: | a Photo-Medical Research Center, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan b Advanced Photon Research Center, Kansai Photon Science Institute, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan c Lamp Company Technology & Engineering Division, R&D Center, Ushio Inc., 1194 Sazuchi Bessho Himeji, Hyogo 671-0224, Japan d Lamp Company Technology & Engineering Division, R&D Center, Ushio Inc., 1-90 Komakado, Gotenba, Shizuoka 412-0038, Japan |
| Abstract: | We have demonstrated efficient frequency doubling of high-energy fundamental Nd:YAG laser pulse energy of the multi-joule (J) level at a high repetition rate using high optical-quality top-seeded solution growth CsB3O5(TSSG-CBO) crystal for the first time. Second-harmonic (532 nm) generation (SHG) output energy of 1.2 J at 10 Hz is obtained with a conversion efficiency of 60%. This result has been obtained at the multi-J level by the growth of high optical-quality TSSG-CBO crystal with the large effective nonlinear coefficient and high damage threshold. These results indicate that TSSG-CBO is a good candidate material for high-energy SHG of Nd-doped lasers at the several J level or more with high repetition rate. |
| Keywords: | 42 65 Ky 42 70 Mp 42 60 Lh |
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