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《Acta Optica Sinica》 2012-02
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Simulation on Mean Flow-Field Aero-Optic Effect of Airborne Optical Platform

Dong Hang Zhang Jianzhu Xu Ming(Institute of Applied Physics and Computational Mathematics,Beijing 100094,China)  
The simulation of the mean flow over airborne laser fairing as well as its aeroptic analysis with selected area electron diffraction software is presented.The simulation reveals that the aero-optic effect with respect to the mean flow field strongly depends on the beam direction: along different beam propagation directions,the root mean square of optical path difference varies between 0.13-1.20 μm,and tilt angle of beam axis varies between 1-12 μrad.Furthermore,the wave-front distortion caused by mean flow-field aeroptic effect is mainly low-order effect: the ratio of tilt to the aberration is about 92%,and the ratio of tilt,defocussing and astigmatism is about 99%.The average of beam quality factor β over all directions caused by no-tilt wave-front aberration is 1.8;when defocussing and astigmatism is corrected,the average of beam quality factor β is 1.16.The beam quality factor β caused by no-tilt aberration increases with the increment of beam radius as a nearly linear manner.
【CateGory Index】: O439
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【Citations】
Chinese Journal Full-text Database 2 Hits
1 YIN Kexin,JIANG Huilin,TONG Shoufeng,WU Qiong (School of Opto-electronical Engineering Changchun University of Science and Technology,Changchun 130022 );Influences of Turbulent boundary Layer on Space-to-ground Laser Communication System[J];Journal of Changchun University of Science and Technology(Natural Science Edition);2008-03
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【Co-citations】
Chinese Journal Full-text Database 4 Hits
1 ZHAN Qiao-lin,WANG Hong-li,LU Jing-hui,WEN Tao(Staff Room 304 of Xi'an High-tech Institute,Xi'an 710025,China);Study and simulation of aero-optical transmission effects on the star image[J];Electronic Design Engineering;2011-20
2 LIU Yong-xin,L Bai-da(Institute of Laser Physics and Chemistry,Sichuan University,Chengdu 610064,China);The higher-order revision of the diffraction field of apertured beams[J];Laser Technology;2006-04
3 MU Guo - qiang,WANG Xi - qing (College of Physical Science and Technology,Southwest Jiaotong University,Chengdu 610031,China);Influence of astigmatism on the beam parameters of focusing sin-Gaussian beams[J];Laser Journal;2011-01
4 ZHANG Shuai,ZHANG Bin (School of Electronics and Information Engineering,Sichuan University,Chengdu 610064,China);Transformation properties of annular beams passing through an astigmatic lens[J];High Power Laser and Particle Beams;2008-02
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