氧碘化学激光器UR-90腔光束质量研究

STUDY OF BEAM QUALITY IN A SUPERSONIC COIL WITH UR 90 CAVITY

摘要: 概括了光束质量的表示方法, 由衍射极限倍数的定义出发, 提出重点在于选取光斑直径, 而且可把光斑测量归结到电子测试仪对剪切电平的测量上。给出了电子测试仪的测试原理, 由所测光斑直径计算了氧碘化学激光器U R290腔的光束质量指标—衍射极限倍数, 达到了1.2～1.6倍衍射极限, 最后进行了误差讨论。

Abstract: Methods of beam quality and the principle of laser beam analyzer are generally described. The results of 1.2～1.6 diffraction limits in a supersonic COIL with UR 90 cavity and the errors are discuss are given.