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Proceedings Paper

Thermal blooming of different waveform laser propagation in atmosphere
Author(s): Tian-he Liao; Wei Liu; Qiong Gao; Hua-chao Kang
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Paper Abstract

Based upon the scalar wave equation and the equations of hydrodynamics, the simulation model used to calculate the transient thermal blooming of collimated multi-pulse laser by four-dimensional code. Considering the variety of absorption coefficient along with different altitudes, this paper got the new model of repetitively pulsed laser with thermal blooming in tropic by interpolation .On this basis, thermal blooming of different waveforms, such as triangle, gauss, and rectangle were calculated. The paper analyzes the thermal blooming of three waveform laser beams by changing respectively the value of the transmission power. After propagating the same distance in the same condition, the result shows that the peak irradiance of triangular laser distorts least severely; the PIB of gauss laser is the biggest, that is to say, the focusing ability of gauss laser is the best; the center of rectangle laser moves the furthest.

Paper Details

Date Published: 17 September 2013
PDF: 8 pages
Proc. SPIE 8904, International Symposium on Photoelectronic Detection and Imaging 2013: High Power Lasers and Applications, 89041P (17 September 2013); doi: 10.1117/12.2035908
Show Author Affiliations
Tian-he Liao, Information Engineering Univ. (China)
Wei Liu, Luoyang Electronic Equipment Test Ctr. (China)
Qiong Gao, Luoyang Electronic Equipment Test Ctr. (China)
Hua-chao Kang, Luoyang Electronic Equipment Test Ctr. (China)


Published in SPIE Proceedings Vol. 8904:
International Symposium on Photoelectronic Detection and Imaging 2013: High Power Lasers and Applications
Andreas Tünnermann; Zejin Liu; Pu Wang; Chun Tang, Editor(s)

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