Abstract

We present an ABCD matrix model showing that self-focusing in the laser rod leads to modifications of the Gaussian beam parameters in cw-pumped Ti:Al₂O₃ lasers. Stabilization of self-mode-locking should result from these beam perturbations. Experimental measurements of beam modifications supporting this model are presented. The role of gain guiding is studied, and the limitations of the model are discussed.

© 1991 Optical Society of America

Resonant frequency doubling of a self-starting, coupled-cavity, mode-locked Ti:Al₂O₃ laser

P. F. Curley and A. I. Ferguson
Opt. Lett. 16(5) 321-323 (1991)

External frequency conversion of cw mode-locked Ti:Al₂O₃ laser radiation

A. Nebel and R. Beigang
Opt. Lett. 16(22) 1729-1731 (1991)

Femtosecond pulse generation in Ti:Al₂O₃ using a microdot mirror mode locker

G. Gabetta, D. Huang, J. Jacobson, M. Ramaswamy, E. P. Ippen, and J. G. Fujimoto
Opt. Lett. 16(22) 1756-1758 (1991)

100-fs pulse generation and amplification in Ti:Al₂O₃

Jeff Squier, François Salin, Gerard Mourou, and Donald Harter
Opt. Lett. 16(5) 324-326 (1991)

Starting dynamics of additive-pulse mode locking in the Ti:Al₂O₃ laser

J. Goodberlet, J. Wang, J. G. Fujimoto, and P. A. Schulz
Opt. Lett. 15(22) 1300-1302 (1990)