Paper
1 March 1995 Numerical modeling of propagation and amplification of radiation in a high-power laser channel
Antoni Sarzynski, Adam Dubik
Author Affiliations +
Abstract
The work deals with phenomena affecting propagation and amplification of radiation in a high power laser system. The studies were performed by means of numerical modeling. The parabolic equation is used to describe the laser beam propagation. The equation includes diffraction, amplification with saturation, self-focusing and thermo-optical effects. The code also includes apodization, relaying, and spatial filtration. Cylindrical symmetry is assumed. The influence of aberration of a soft dielectric diaphragm on intensity distribution is described. Some phenomena caused by self-focusing are investigated. It is shown that, first of all, the self-focusing but not amplification saturation limits pulse energy which may be delivered from the laser under consideration.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Antoni Sarzynski and Adam Dubik "Numerical modeling of propagation and amplification of radiation in a high-power laser channel", Proc. SPIE 2202, Laser Technology IV: Research Trends, Instrumentation, and Applications in Metrology and Materials Processing, (1 March 1995); https://doi.org/10.1117/12.203245
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KEYWORDS
High power lasers

Optical filters

Fusion energy

Numerical modeling

Dielectrics

Laser systems engineering

Apodization

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