We have studied Kerr-lens mode-locking efficiency in a Ti-sapphire laser both experimentally and theoretically. The criterion of mode-locking efficiency based on the spatiotemporal model of a self-consistent laser field was proposed. We investigated ultrashort-pulse stability, taking into account the gain saturation and group-velocity dispersion. A stable regime of double pulse collision at the active medium has been observed and analyzed theoretically.
© 1997 Optical Society of America
V. L. Kalashnikov, N. I. Zhavoronkov, I. G. Poloyko, and V. P. Mikhailov, "Control of mode-locking efficiency in a Kerr-lens mode-locked Ti:sapphire laser," J. Opt. Soc. Am. B 14, 2705-2709 (1997)