Highly efficient frequency doubling of high-energy Nd:YAG laser using a CsB3O5 crystal

✍ Scribed by Masayuki Suzuki; Hiromitsu Kiriyama; Yoshiki Nakai; Hajime Okada; Izuru Daito; Yoshio Kagebayashi; Toshio Yokota; Paul R. Bolton; Hiroyuki Daido; Shunichi Kawanishi

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 302 KB
• Volume: 283
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2009.10.015

✦ Synopsis

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 CsB 3 O 5 (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.