Investigation of the Kerr-lens Mode Locking Ability of Cr:ZnSe Solid-State Laser

Details Investigation of the Kerr-lens Mode Locking Ability of Cr:ZnSe Solid-State Laser Investigation of the Kerr-lens Mode Locking Ability of Cr:ZnSe Solid-State Laser

2000-09-18

arxiv.org/abs/physics/0009065v1

Proc. SPIE, v.4350, pp.112-116 (2001)

Physics

Optics

14 pages, 8 Postscript figures, LaTeX, commented Maple program is presented on http://www.geocities.com/optomaplev

Scientific paper

The theoretical calculation for nonlinear refractive index in Cr: ZnSe - active medium predicts the strong defocusing cascaded second-order nonlinearity within 2000 - 3000 nm spectral range. On the basis of this result the optimal cavity configuration for Kerr-lens mode locking is proposed that allows to achieve a sub-100 fs pulse duration. The numerical simulations testify about strong destabilizing processes in the laser resulting from a strong self-phase modulation. The stabilization of the ultrashort pulse generation is possible due to spectral filtering that increases the pulse duration up to 300 fs.

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