The second harmonic of a femtosecond Ti:sapphire regenerative amplifier system is used to pump a parametric generator–amplifier producing visible light pulses of 160-fs duration near 570 nm and infrared pulses of < 100-fs duration between 1.23 and 1.45 μm.
© 1994 Optical Society of America
Valentin Petrov, Frank Seifert, and Frank Noack, "Visible optical parametric generator producing nearly bandwidth-limited femtosecond light pulses at 1-kHz repetition rate," Appl. Opt. 33, 6988-6991 (1994)