Nowadays, the mainstream of far field beam smoothing technology adopted by foreign high power laser drivers is smoothing by spectral dispersion (SSD) based upon sinusoidal frequency modulation.
目前，国外高功率激光驱动器实现远场分布平滑化的主流技术是基于正弦调频脉冲的光谱色散平滑技术(SSD)。
The thermal effect of high-energy laser produced within the beam controller and its influence on laser far-field spot are analyzed with numerical calculation method.
采用数值计算方法分析了高能激光在光束控制器内部传输所产生的热效应及其对激光远场光斑的影响。
Result shows that laser beam deflects to the direction which optical path length increase. The far-field intensity of laser beam is not the same for the difference of wavelength.
结果表明：强的激波结构使激光束远场强度分布发生了向光程增大方向的明显偏折，对于波长不同的激光束得到光束通过流场后的远场强度分布不同。
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