[18a-A501-1~6] 3.5 Ultrashort-pulse and high-intensity lasers (formerly 3.6)

▲ [18a-A501-5] High power KTA-based OPA at 3.2 μm at 1 kHz

〇(D)Tianqi Yang^1,2, Takayuki Kurihara¹, Tomoya Mizuno¹, Teruto Kanai¹, Yoshihisa Harada^1,2, Jiro Itatani¹ (1.ISSP, Univ. Tokyo, 2.GSFS, Univ. Tokyo)

Keywords:optical parametric amplifier, MIR generation

We have constructed a KTA-based OPA that is pumped by a Ti:sapphire laser amplifier (800 nm, 12 mJ at 1 kHz). The seed is the 1100-nm component of the white light generated from a 4-mm-thick YAG plate. MIR pulses around 3.2 μm are generated at the third-stage OPA as the idler components, whose output energy has reached 370 μJ.