16 May 1994 Self-modelocking of cw solid state lasers by Kerr self-focusing
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With the help of the self-consistent ABCD matrix method the fundamental TEM00 mode of a four-mirror cavity with active rod and hard aperture is analyzed. Cavity parameters range with the small diffraction losses at hard aperture and the decreased diffraction losses for the increased mode intensities due to self-focusing in active medium are shown immediately for practical Kerr-lens mode-locked (KLM) Ti:sapphire lasers. To do this we have obtained the generalized solution of the wave propagation equation in self-focusing medium for the arbitrary curvature radius of phase front of incident Gaussian beam. The fluctuation model of self-mode-locked lasers is used to demonstrate the generation of a stable ultra-short pulse train by the system under constant pumping for the obtained cavity parameters.
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V. P. Kalosha, V. P. Kalosha, Vladimir L. Kalashnikov, Vladimir L. Kalashnikov, Victor P. Mikhailov, Victor P. Mikhailov, Igor G. Poloyko, Igor G. Poloyko, } "Self-modelocking of cw solid state lasers by Kerr self-focusing", Proc. SPIE 2116, Generation, Amplification, and Measurement of Ultrashort Laser Pulses, (16 May 1994); doi: 10.1117/12.175851; https://doi.org/10.1117/12.175851


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