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Proceedings Paper

Numerical analysis of thermal effects on laser beam propagation
Author(s): Gang Jin; Shumin Li; Shunfa Liu; Hongbin Chen; Jiaguang Ma
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Paper Abstract

This paper presents the numerical analysis about the thermal effects, produced by the high-energy laser in a beam control system, on the laser beam propagation. The propagation of laser is described by the paraxial wave equations, solved by the phase-screen technique and the FFT method. The thermal turbulence motion and the air density variation are governed by the complete Navier-Stokes equations, so that the variety factors could be in consideration. The Navier-Stokes equations are solved by using the LU-SGS factorization technique. The methods could be used for other kinds of aero-optical problems. The numerical results show that, with the additional initial thermal-phase, the energy concentration and the quality of the laser beam at far field would be prominently degraded for the typical situations.

Paper Details

Date Published: 22 January 2002
PDF: 8 pages
Proc. SPIE 4489, Free-Space Laser Communication and Laser Imaging, (22 January 2002); doi: 10.1117/12.453238
Show Author Affiliations
Gang Jin, Institute of Optics and Electronics (China)
Shumin Li, China Aerodynamics Research and Development Ctr. (China)
Shunfa Liu, Institute of Optics and Electronics (China)
Hongbin Chen, Institute of Optics and Electronics (China)
Jiaguang Ma, Institute of Optics and Electronics (China)

Published in SPIE Proceedings Vol. 4489:
Free-Space Laser Communication and Laser Imaging
David G. Voelz; Jennifer C. Ricklin, Editor(s)

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