本文用量子理论导出二模偏调相等情况下三能级系统双模激光运动主方程.讨论了偏调对激光运转的影响.有偏调时,除增益及饱和系数改为与偏调量有关的等效量外,还增加双光子过程的作用.偏调的作用在接近阈值运转时明显,在远高于阈值时将逐步趋于消失.

The master equation of a nonresonant two-mode laser in three level atomic system with equal detune for each mode is deduced. The influences of the detune over the laser operation are discussed. It is found that the gain and saturation coefficients are reduced by factors L and L2 separately. The influence of the detune is appreciable at slightly above the threshold operation and is fading away far above. The effect of the two-photon process is comparatively enhanced in detune case.