High-power and high-contrast optical parametric chirped pulse amplification in beta-BaB2O4 crystal.
We have developed a high-power laser system based on optical parametric chirped-pulse amplification in a beta-BaB2O4 crystal. The system provides gain of 10(8), a conversion efficiency of approximately 23%, an output energy of -65 mJ, and good amplified beam quality. The prepulse ratio has been measured to be 1.5 x 10(-8) or less. The spectral width was as broad as 16.5 nm centered at 1053 nm.
Yoshida
H
H
Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565, Japan. hideyo@ile.osaka-u.ac.jp
Ishii
E
E
Kodama
R
R
Fujita
H
H
Kitagawa
Y
Y
Izawa
Y
Y
Yamanaka
T
T