激光模拟器衍射损耗的研究

半导体激光器给出的是半功率点处的发散角,在计算时必须进行变换,因实测LOC激光器发散角较大,本文对高斯光束发散角变换公式进行了少许修正,导出了模拟器衍射损耗公式,并计算了三种模拟器的衍射损耗。

Study on diffraction losses of laser simulators

The divergence provided by the semiconductor laser are all defined at the point of half power.In practical calculation, it must be transformed to another define level and the measurement divergence of LOC laser is rather great.So the transformation formulas of divergence for a Gaussian beam are modified in this paper.According to the modification,the formulas of diffraction losses of the laser simulators are derived.As the examples,the diffraction losses of three types of laser simulators are calculated.