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Proceedings Paper

Thermal blooming of HEL in the nonflowing beam tube
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Paper Abstract

Thermal blooming is one of the most important factors, which make the beam diffused and cause the decline of laser intensity on the object. This paper presents a method to reduce thermal blooming of high-energy laser (HEL) in the beam tube and compares two models describing the thermal blooming. Helium has the qualities of low absorption coefficient, high thermal conductivity and low index of refraction, and can be used as the medium through which HEL beam propagates. The condensations of thermal conduction model and acoustic wave model are evaluated respectively. Results show the method is practicable, and two models' applicable ranges are got.

Paper Details

Date Published: 5 September 2002
PDF: 6 pages
Proc. SPIE 4926, Adaptive Optics and Applications II, (5 September 2002); doi: 10.1117/12.481689
Show Author Affiliations
Sanhong Wang, National Univ. of Defense Technology (China)
Xiaojun Xu, National Univ. of Defense Technology (China)
Zhongfu Jiang, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 4926:
Adaptive Optics and Applications II
Wenhan Jiang; Robert K. Tyson, Editor(s)

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