The framework of the Research Program 1 (RP1) in the HiLASE[1] project is to develop both the 500-mJ at 1-kHz repetition rate and the 5-mJ at 100-kHz repetition rate laser systems with 1-2ps pulse duration based on thin disk technology for industrial, scientific, and medical applications. The front-end of our laser system contains a regenerative amplifier as the first stage of amplifier chain. We are developing the Yb:YAG thin disk regenerative amplifier with pulse energy of 120-130mJ before pulse compression at the repetition rate of 1-kHz. As the first step towards the 100-mJ class regenerative amplifier, we have developed a prototype of Yb:YAG thin disk regenerative amplifier operating in the range of 1-kHz to 10-kHz repetition rate.

© 2013 IEEE

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