大功率光纤激光大气传输特性的研究

Research of high power fiber laser atmosphere propagation

影响激光传输效果的主要因素包括大气分子和气溶胶粒子吸收以及由散射造成的衰减效应、大气湍流引起的湍流效应和强激光加热空气造成的热晕效应。针对光纤激光的大气传输进行了研究,研究了在1080nm特定波长的光纤激光大气传输过程中的大气湍流、热晕效应、湍流热晕相互作用对光纤激光远场功率密度的影响。

The main factors what effect the laser beam propagation include atmosphere attenuation effects what the absorp- tion and dispersion of atmosphere molecule and aerosol particles cause, atmosphere turbulence effects and atmosphere thermal blooming effects what high power laser heating atmosphere result in. The influence of atmosphere thermal blooming and turbu- lence effects on far-field laser power density are investigated.