In addition to the usual optical aberrations, high energy laser systems can experience beam degradation from effects that are usually ignored in conventional optical systems. Much of this degradation is the result of thermally generated component distortion or density variations in the gaseous environment. We will discuss some simple models for these distortions and present the results of computer calculations which demonstrate their effect on a beam propagated through a typical optical train.
J. S. Accetta,
R. F. Shea,
"Sources Of Optical Distortions In High Energy Laser Systems", Proc. SPIE 0121, Optics in Adverse Environments I, (20 January 1978); doi: 10.1117/12.955768; https://doi.org/10.1117/12.955768