Remo J L
Appl Opt. 1981 Sep 1;20(17):2997-3002. doi: 10.1364/AO.20.002997.
The diffraction power losses for slightly tilted (perturbed) open resonator reflectors with both circular and rectangular apertures are computed for several tilt angles and reflector radii of curvature. Computational results indicate that the power losses increase monotonically with increasing tilt angle for stable systems, while for unstable systems the power losses are hardly affected by the tilt angle. At a given tilt angle, the perturbation generated power losses are negligible for the confocal case but become significant as the geometry of the system approaches that of the concentric or plane-parallel resonator and fluctuate about the unperturbed values for an unstable geometry. This last result may have applications for unstable laser design.
针对具有圆形和矩形孔径的略微倾斜（受扰动）的开腔反射镜，计算了在几个倾斜角度和反射镜曲率半径情况下的衍射功率损耗。计算结果表明，对于稳定系统，功率损耗随倾斜角度的增加而单调增加，而对于不稳定系统，功率损耗几乎不受倾斜角度的影响。在给定的倾斜角度下，对于共焦情况，扰动产生的功率损耗可忽略不计，但随着系统几何结构接近同心或平面平行谐振腔的几何结构，功率损耗变得显著，并在不稳定几何结构的情况下围绕未受扰动的值波动。最后这个结果可能在不稳定激光设计中有应用。
