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Proceedings Paper

Theory of sub-10-fs generation in Kerr-lens mode-locked solid state lasers with a coherent semiconductor absorber
Author(s): Vladimir L. Kalashnikov; Igor G. Poloyko
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Paper Abstract

The results of the study of ultra-short pulse generation in continuous-wave Kerr-lens mode-locked (KLM) solid-state lasers with semiconductor saturable absorbers are presented. The issues of extremely short pulse generation are addressed in the frames of the theory that accounts for the coherent nature of the absorber-pulse interaction. We developed an analytical model that bases on the coupled generalized Landau-Ginzburg laser equation and Bloch equations for coherent absorber. We showed, that in the absence of KLM semiconductor absorber produces 2(pi) -non-soliton pulses of self-induced transparency, while the KLM provides an extremely short soliton generation, 2(pi) - and (pi) -sech- shaped soliton solutions and variable-squared chirped solutions have been found. It was shown, that the presence of KLM loosens the stability requirements for ultra-short pulse generation removing the limitation on the minimum modulation depth in absorber necessary for the pulse stabilization. An automodulation stability and self-starting ability analysis is presented.

Paper Details

Date Published: 12 March 2001
PDF: 10 pages
Proc. SPIE 4352, Laser Optics 2000: Ultrafast Optics and Superstrong Laser Fields, (12 March 2001); doi: 10.1117/12.418786
Show Author Affiliations
Vladimir L. Kalashnikov, International Laser Ctr. (Belarus)
Igor G. Poloyko, International Laser Ctr. (Belarus)

Published in SPIE Proceedings Vol. 4352:
Laser Optics 2000: Ultrafast Optics and Superstrong Laser Fields
Alexander A. Andreev; Vladimir E. Yashin, Editor(s)

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