[11a-C213-1~12] 3.5 Ultrashort-pulse and high-intensity lasers

11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[11a-C213-10] 150 W Pulsed Amplification in a Tm-doped Fiber Laser System

〇Donguhn Kang¹, Toshio Otsu¹, Kotaro Nakagawa¹, Yohei Kobayashi¹ (1.ISSP, Univ.Tokyo)

Keywords:

Tm doped fiber laser,high power fiber amplification

We developed a 1970 nm Tm-fiber MOPA for 2 µm high-power pulses. Pulse stretching, sideband filtering, and direct water cooling enabled 157 W output at 420 W pump with 39% slope efficiency.