一种测量平均小信号增益及饱和光强方法

Technique of measuring the average small signal gain and saturation photic intensity

探讨了一种测量激光器平均小信号增益及饱和光强的方法。通过改变光学谐振腔出光镜的透射率测得三组出光功率,然后由所测功率值和相应的透射率,根据所给出的数学模型求解出结果。这种方法的优点是不需要专门的探测光源。因此,对于不方便找到适合探测光源的情况,如对某种化学激光器的测试诊断有一定的可行性。同时,为了更加清楚地说明这种方法,还给出了一种改变透过率的光路结构的方案。

A new technique of measuring the average small signal gain and saturation photic intensity of laser is given.Firstly,three powers of the laser are measured by change the reflectivity of the optical cavity mirror of that laser.Secondly,the gain and the saturation intensity are found out by the calculation model with the three powers and the three reflectivities.This technique need not another laser source,it can be operated more easily.