We present a comparison of compact three-element Ti:Al2O3 laser resonator designs for enhanced Kerr-lens mode locking. We demonstrate a novel compact cavity design that uses an intracavity lens and show that nonastigmatic modes can significantly increase Kerr-lens action and achieve self-starting mode locking. A new mechanism for group-velocity dispersion that arises from the chromatic aberration of the intracavity focusing elements is also demonstrated.
© 1996 Optical Society of America
Original Manuscript: August 3, 1995
Published: January 15, 1996
B. E. Bouma and J. G. Fujimoto, "Compact Kerr-lens mode-locked resonators," Opt. Lett. 21, 134-136 (1996)