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 typeI phase-matched β -barium borate optical parametric generator and amplifier. The signal and idler outputs are tunable from 470nm to 2.7 µm and have pulse widths in the range of 100170fs at a 1-kHz repetition rate. A maximum output energy of 6.5 µJ and a total conversion efficiency of more than 15% were achieved.
© 1997 Optical Society of America
K. S. Wong, Z. R. Qui, H. Wang, and G. K. L. Wong, "Efficient visible femtosecond optical parametric generator and amplifier using tilted pulse-front pumping," Opt. Lett. 22, 898-900 (1997)