Abstract

We have developed a high-power laser system based on optical parametric chirped-pulse amplification in a βBaB2O4 crystal. The system provides gain of 108, a conversion efficiency of 23%, an output energy of 65 mJ, and good amplified beam quality. The prepulse ratio has been measured to be 1.5×10-8 or less. The spectral width was as broad as 16.5 nm centered at 1053 nm.

© 2003 Optical Society of America

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