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Applied Optics

Applied Optics


  • Editor: Glenn D. Boreman
  • Vol. 44, Iss. 34 — Dec. 1, 2005
  • pp: 7442–7450

Three-dimensional calculation of high-power, annularly distributed, laser-beam-induced thermal effects on reflectors and windows

Weiping Wang, Fuli Tan, Baida Lü, and Cangli Liu  »View Author Affiliations

Applied Optics, Vol. 44, Issue 34, pp. 7442-7450 (2005)

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Based on the three-dimensional transient heat conduction equation and the elastic stress-strain equation, the temperature rise, distortion, and equivalent stress distributions of a high-reflectivity silicon reflector and a white bijou window irradiated by a high-power sloped annularly distributed laser beam are simulated using a three-dimensional finite element model (FEM). The effects of laser intensity, output duration, beam obscure ratio, and laser intensity spatial gradient on the results are especially investigated. The effects of mirror and window thermal distortion on laser beam phase aberrations are also evaluated. This noncylindrosymmetric three-dimensional FEM can be used to evaluate high-power, high-energy, laser beam-induced thermal effects on optical components.

© 2005 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3330) Lasers and laser optics : Laser damage
(140.6810) Lasers and laser optics : Thermal effects

ToC Category:
Lasers and Laser Optics

Original Manuscript: April 6, 2005
Revised Manuscript: May 29, 2005
Manuscript Accepted: May 30, 2005
Published: December 1, 2005

Weiping Wang, Fuli Tan, Baida Lü, and Cangli Liu, "Three-dimensional calculation of high-power, annularly distributed, laser-beam-induced thermal effects on reflectors and windows," Appl. Opt. 44, 7442-7450 (2005)

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