Nonlinear optical phenomena

Theory of generation of sub-10-fs pulses in a cw solid-state laser with a semiconductor passive switch and self-focusing under coherent-interaction conditions

V. L. Kalashnikov, D. O. Krimer, I. G. Poloiko

International Laser Center, Belarus State Technical University, Minsk

Abstract: An analysis made on the basis of the theory of the self-consistent field shows the possibility of production of ultrashort sub-10-fs soliton-like pulses in a solid-state laser with a coherent semiconductor switch in the absence of mode-locking caused by self-focusing. Mode-locking caused by self-focusing leads to the formation of an extremely short sech-shaped pulse. In this case, the restriction imposed on the minimum modulation degree in a passive semiconductor switch that provides self-starting USP generation is lifted.

PACS: 42.65.Re, 42.65.Tg, 42.55.Rz

Received: 18.01.2000

 English version: Quantum Electronics, 2000, 30:10, 927–931

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