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Proceedings Paper

New method for laser giant pulsing by type II intracavity frequency doubling
Author(s): Ivan Ch. Buchvarov; N. I. Nikolov
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Paper Abstract

We developed a novel type of Q-modulator based on cascaded nonlinear chi-2 processes. The principle of operation is based on the nonlinear reflection, which occurs in second harmonic generation or frequency mixing owning to polarization rotation of the fundamental wave in the nonlinear crystal by intensity- induced phase shift. Dynamics of the generation evolution in laser with nonlinear cascaded polarization mirror (NCPM) using the rate equations has been analyzed. Generation of giant pulses is theoretically obtained. This new method for passive Q-switching has a very large working spectral range (from VIS to NIR) and the lack of absorption losses results in low thermal effects which make it appropriate for passive Q- switching of high average power lasers.

Paper Details

Date Published: 9 April 2001
PDF: 5 pages
Proc. SPIE 4397, 11th International School on Quantum Electronics: Laser Physics and Applications, (9 April 2001); doi: 10.1117/12.425169
Show Author Affiliations
Ivan Ch. Buchvarov, Univ. of Sofia (Bulgaria)
N. I. Nikolov, Univ. of Sofia (Bulgaria)


Published in SPIE Proceedings Vol. 4397:
11th International School on Quantum Electronics: Laser Physics and Applications
Peter A. Atanasov; Stefka Cartaleva, Editor(s)

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