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Proceedings Paper

LOTS Analysis Of Optical Diffraction In Antares
Author(s): P. N. Wolfe; A. C. Saxman; G. Lawrence
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Paper Abstract

Diffraction and aberration effects are calculated for the power-amplifier and target-system portions of the 100-kJ Antares laser fusion facility, using LOTS, a fast-Fourier-transform propagation code incorporating a model for saturating gain in CO2. Energy losses due to diffraction are found to be small compared to other losses. Diffraction "hot spots" usually typical of propagation at low Fresnel numbers are effectively suppressed in the Antares power amplifier by gain saturation. Taking account of diffraction and aberrations over the whole optical train, the code predicts a target focal spot that has 82% of its energy in a 150-μm-diameter circle, a result essentially identical to what would be expected of the final focus mirror alone.

Paper Details

Date Published: 13 November 1980
PDF: 6 pages
Proc. SPIE 0190, Los Alamos Conference on Optics 1979, (13 November 1980); doi: 10.1117/12.957747
Show Author Affiliations
P. N. Wolfe, University of California (United States)
A. C. Saxman, University of California (United States)
G. Lawrence, University of California (United States)

Published in SPIE Proceedings Vol. 0190:
Los Alamos Conference on Optics 1979
Donald H. Liebenberg, Editor(s)

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