A Kerr-lens mode-locked Cr:LiSrGaF laser containing no intracavity prisms has been demonstrated for the first time to the authors’ knowledge. The laser produced stable near-transform-limited 44-fs pulses with an output power of 200 mW, tunable between 833 and 857 nm. Low-loss Gires–Tournois structured dielectric mirrors were used for dispersion control. The measured group-delay dispersion of the active medium as well as of the mirrors permitted to minimize the number of reflections, permitting higher output power.
© 1996 Optical Society of America
Original Manuscript: February 5, 1996
Published: August 1, 1996
I. T. Sorokina, A. Cassanho, H. P. Jenssen, R. Szipöcs, E. Sorokin, and E. Wintner, "Prismless passively mode-locked femtosecond Cr:LiSGaF laser," Opt. Lett. 21, 1165-1167 (1996)