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17 September 2013 Thermal blooming of different waveform laser propagation in atmosphere
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Proceedings Volume 8904, International Symposium on Photoelectronic Detection and Imaging 2013: High Power Lasers and Applications; 89041P (2013) https://doi.org/10.1117/12.2035908
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China
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.
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Tian-he Liao, Wei Liu, Qiong Gao, and Hua-chao Kang "Thermal blooming of different waveform laser propagation in atmosphere", Proc. SPIE 8904, International Symposium on Photoelectronic Detection and Imaging 2013: High Power Lasers and Applications, 89041P (17 September 2013); https://doi.org/10.1117/12.2035908
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