[20a-B204-1~9] 3.4 Laser system and materials (formerly 3.5)

10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)

[20a-B204-7] Development of optical distortion-free single crystal Yb:YAG/YAG composite

〇Kazuhiro Kawashima¹, Shohei Asaka¹, Maki Takahashi¹, Tomotsugu Kinoshita¹, Saiko Shimizu¹, Shuichi Kawaminami¹, Keisuke Mochizuki¹, Hajime Haneda², Hideomi Koinuma² (1.SHINKOSHA, 2.SCT Inc.)

Keywords:

YAG,Single crystal,High-power laser

We are addressing a large-diameter single crystal laser medium as an option for a high-power laser beyond 10 kW. In our work, we developed single crystal laser composite with a diameter of 50 mm, composed of 5 atm.% doped Yb:YAG and non-doped YAG single crystals with less optical distortion. In a presentation, a development of a large laser medium single crystal via TSMG and Cz methods, and a development of a laser crystal composite with suppressed voids at a bonded interface will be presented.