Development of high-energy, phase-controlled picosecond Yb:YLF CPA laser for adaptive pulse shaping on few-cycle OPCPA

Cryogenically-cooled Yb:YLF chirped-pulse regenerative amplifier has been developed for pumping OPCPA. 107 mJ pulses were obtained and compressed down to 2.2 ps without pedestals. Adaptive phase control is newly implemented for precise idler phase compensation.