Control of laser radiation parameters

Mechanism of the formation of ultrashort pulses in cw solid-state lasers as a result of the optical Stark effect in a saturable semiconductor switch

V. L. Kalashnikov, I. G. Poloiko, V. P. Mikhailov

International Laser Center, Belarus State Technical University, Minsk

Abstract: It is shown that the Stark shift of a quantum-well level on excitation below the edge of the absorption band in a bleachable absorber may lead to the formation of a pulse of minimum duration. This mechanism also ensures self-starting of the generation of ultrashort pulses.

PACS: 42.55.Rz, 42.79.Ta, 71.70.Ej

Received: 08.12.1997

 English version: Quantum Electronics, 1999, 29:5, 428–432

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