We report a novel technique for the synchronization of two different femtosecond solid-state lasers by crossing of both laser pulses in a Kerr medium. Stable dual-wavelength femtosecond pulses at central wavelengths of 820 and 1250 nm have been obtained. The tolerance of cavity-length mismatch is ~0.6μm , where the pulse widths of the Ti:sapphire and the Cr:forsterite lasers are 18 and 40 fs, respectively, at average powers of 600 and 110 mW. The typical timing jitter derived from the cross correlation is less than 3 fs.
© 2001 Optical Society of America
(140.3590) Lasers and laser optics : Lasers, titanium
(140.4050) Lasers and laser optics : Mode-locked lasers
(320.2250) Ultrafast optics : Femtosecond phenomena
(320.7090) Ultrafast optics : Ultrafast lasers
Zhiyi Wei, Yohei Kobayashi, Zhigang Zhang, and Kenji Torizuka, "Generation of two-color femtosecond pulses by self-synchronizing Ti:sapphire and Cr:forsterite lasers," Opt. Lett. 26, 1806-1808 (2001)