High-efficiency conversion of powerful femtosecond pulses into second harmonic (original) (raw)

Conference on Lasers and Electro-Optics Europe

Abstract

gence and, hence, is much smaller, up to lo3 times, than the seeds both for fanning waves F, and Fand for the cones as a whole. It explains why PC components being higher over their threshold comparing to the cones components appear in generation much later. Linearized equations for the waves +,+, +,-, S,, and Sat low pumps depletion and at equal pump intensities give at zero boundary conditions the following approximate expressions for the thresholds of PC generation via intermediate fanning and of cones generation respectively

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