ALPS Poster Session 1

[ALPSp1-04] Development of 7-pass Fe:ZnSe amplifier seeded by KTA-based OPA at 3.9 um

*Daiki Okazaki¹, Tsuneto Kanai¹, Linpeng Yu², Ryo Yasuhara², Shigeki Tokita¹ (1. Institute for Chemical Research, Kyoto University, 2. National Institute for Fusion Science)

We develop a 3.9-micron Fe:ZnSe chirped pulse 7-pass amplifier seeded by a three-stage KTA-based optical parametric amplifier, achieving single-pass gain of 10. The pulse energy finally reaches to 45 uJ via the seven-pass amplification.