In this paper, we present a simple and effective technique, so called REPA (REgenerative amplifier and Parametric Amplifier), that combines the advantage of OPCPA with RA in a CPA laser chain to achieve a prepulse contrast level of more than 10 orders of magnitude with a commercial low-energy pump laser. Typically, pulses from RA with additional Pockels cells have a prepulse contrast of 6 orders magnitude with millijoule level energy. The pulse energy is attenuated to nanojoule level while maintaining the same prepulse contrast. The main pulse is then selectively amplified in OPCPA to millijoule level again.
Improvement of a prepulse contrast of an intense laser pulse by a combination of regenerative and optical parametric chirped pulse amplifiers
2005-01-01
264318 byte
Conference paper
Electronic Resource
English
Optical Regenerative Amplifier Based on Parametric Amplification of Femtosecond Chirped Laser Pulse
British Library Conference Proceedings | 2005
|High Power Optical Parametric Chirped Pulse Amplifiers and Their Applications
British Library Conference Proceedings | 2005
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