Fundamental algorithm and computational codes for the light beam propagation in high power laser system |
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| Authors: | GUO Hong HU Wei Liu Chengyi DENG Ximing |
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| Affiliation: | 1. Laboratory of Light Transmission Optics, South China Normal University, Guangzhou 510631, China
2. National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China |
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| Abstract: | The fundamental algorithm of light beam propagation in high power laser system is investigated and the corresponding computational codes are given. It is shown that the number of modulation ring due to the diffraction is related to the size of the pinhole in spatial filter (in terms of the times of diffraction limitation, i. e. TDL) and the Fresnel number of the laser system; for the complex laser system with multi-spatial filters and free space, the system can be investigated by the reciprocal rule of operators. |
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| Keywords: | diffraction modulation ring (DMR) diffraction modulation depth (DMD) times of diffraction limitation (TDL) Fresnel number reciprocity of operator |
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