Generation of two-color femtosecond pulses by self-synchronizing Ti : sapphire and Cr : forsterite lasers

We report a novel technique for the synchronization of two different femtos econd solid-state lasers by crossing of both laser pulses in a Kerr medium. Stable dual-wavelength femtosecond pulses at central wavelengths of 820 an d 1250 mn have been obtained. The tolerance of cavity-length mismatch is si milar to0.6 mum, where the pulse widths of the Ti:sapphire and the Cr:forst erite lasers are 18 and 40 fs, respectively, at average powers of 600 and 1 10 mW. The typical timing jitter derived from the cross correlation is less than 3 fs. (C) 2001 Optical Society of America.