Abstract

We investigate the nonlinear interactions between pulses of two different wavelengths within a single cross-mode-locked femtosecond Ti:sapphire laser. We show that the nonlinear interaction caused by self-focusing can correct for a difference in cavity lengths of as much as ±3 μm, corresponding to 20% of the pulse width on each round trip. Further, we show that the concept of mean group delay can be extended to a pair of pulses with disparate spectra and spatial distribution in a nonlinear regenerative system.

© 1994 Optical Society of America

Sticky pulses: two-color cross-mode-locked femtosecond operation of a single Ti:sapphire laser

D. R. Dykaar and S. B. Darack
Opt. Lett. 18(8) 634-636 (1993)

Two-color synchronously mode-locked femtosecond Ti:sapphire laser

M. R. X. de Barros and P. C. Becker
Opt. Lett. 18(8) 631-633 (1993)

Self-starting Kerr-lens mode locking of a Ti:sapphire laser

G. Cerullo, S. De Silvestri, and V. Magni
Opt. Lett. 19(14) 1040-1042 (1994)

Widely tunable two-color mode-locked Ti:sapphire laser with pulse jitter of less than 2 fs

A. Leitenstorfer, C. Fürst, and A. Laubereau
Opt. Lett. 20(8) 916-918 (1995)

Suppression of beam breakup in self-mode-locked Ti:sapphire lasers

J.-F. Cormier, M. Piché, and F. Salin
Opt. Lett. 19(16) 1225-1227 (1994)