High-power pre-chirp managed amplification of circularly polarized pulses using high-dispersion chirped mirrors as a compressor

• DOI: 10.1364/osac.392981
• Publication Date: 2020-07-03T16:01:00Z
• Authors: Yao Zhang; Runzhi Chen; Hangdong Huang; Yizhou Liu; Hao Teng; Shaobo Fang; Wei Liu; Franz Kaertner; Junli Wang; Guoqing Chang; Zhiyi Wei
• Keywords: Chirp; Chirped pulse amplification; Pulse compression; Pulse duration; Self-phase modulation

We incorporate two techniques into pre-chirp managed amplification (PCMA) to achieve high-energy ultrashort pulses with the duration well below 100 fs. Numerical simulations confirmed by our experimental results demonstrate that seeding PCMA circularly polarized instead of linearly can increase amplified pulse energy 1.5 times. also employ high-dispersion chirped mirrors compress throughput efficiency as high 98%. These allow us an Yb-fiber system emits 50-MHz, 47-fs 101.2-W average power.