广义两段式半导体激光器输出光谱的表达式

EXPRESSION OF OUTPUT SPECTRUM FROM BROAD SENSE TWO-SEGMENT SEMICONDUCTOR LASERS

利用射线法导出了两段式半导体激光器输出光谱的表达式，把该式应用于光栅外腔式半导体激光器，还导出了激光器在任选波长振荡时。

Using the ray trace method,an analytical expression for the output spectrum from two-segment semiconductor lasers has been deducedAs a result,the spectral characteristics of the two-electrode,semiconductor lasers and external cavity semiconductor lasers can be studied with a unified expressionThe expression was applied to the grating tuned external cavity semiconductor lasers,and an explicit analytical expression for the threshold carrier density,has been derived on condition that the laser is turned to oscillate at arbitrary wavelengths