2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/85097The Kerr-lens mode locking ability and the ultrashort pulse characteristics are analyzed numerically for the Cr-doped ZnTe, ZnSe, ZnS active media. The advantages of these materials for the femtosecond lasing within 2 - 3 $μ$m spectral range are demonstrated.LaTeX2e, 13 pages, 10 figs; expanded and corrected versionOpticsComputational PhysicsDevelopment prospects and stability limits of the mid-IR Kerr-lens mode-locked laserstext