We have observed true self-starting Kerr-lens mode locking in two distinct solid-state laser systems operating at room temperature by optimizing the cavity geometry to maximize the amplitude modulation with respect to the intracavity power variation. Pulses of 15 ps have been obtained from a Pr3+:YLF laser system operating at 607 nm, and 53-fs pulses have been obtained from Cr4+:YAG at 1.54 μm.
© 1996 Optical Society of America
Y. P. Tong, J. M. Sutherland, P. M. W. French, J. R. Taylor, A. V. Shestakov, and B. H. T. Chai, "Self-starting Kerr-lens mode-locked femtosecond Cr4+:YAG and picosecond Pr3+:YLF solid-state lasers," Opt. Lett. 21, 644-646 (1996)