LOTS Analysis Of Optical Diffraction In Antares

P. N. Wolfe; A. C. Saxman; G. Lawrence

doi:10.1117/12.957747

13 November 1980 LOTS Analysis Of Optical Diffraction In Antares

P. N. Wolfe, A. C. Saxman, G. Lawrence

Proceedings Volume 0190, Los Alamos Conference on Optics 1979; (1980) https://doi.org/10.1117/12.957747
Event: Los Alamos Conference on Optics '79, 1979, Los Alamos, United States

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.

Citation Download Citation

P. N. Wolfe, A. C. Saxman, and G. Lawrence "LOTS Analysis Of Optical Diffraction In Antares", Proc. SPIE 0190, Los Alamos Conference on Optics 1979, (13 November 1980); https://doi.org/10.1117/12.957747

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