Abstract
Using pulses with tilted pulse fronts to compensate for the group-velocity mismatch in three-wave interactions, we constructed an efficient 400-nm pumped femtosecond collinear type I phase-matched -barium borate optical parametric generator and amplifier. The signal and idler outputs are tunable from 470 nm to 2.7 and have pulse widths in the range of 100–170 fs at a 1-kHz repetition rate. A maximum output energy of 6.5 and a total conversion efficiency of more than 15% were achieved.
© 1997 Optical Society of America
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