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利用开放的ladder型无反转激光系统的密度矩阵运动方程组的定态解和激光场运动方程分析了系统的稳定性。结果表明:如果增益大于激光腔损耗,则零解是不稳定的;如果增益小于激光腔损耗,则零解是稳定的;如果增益大于激光腔损耗,则非零解是稳定的。
The stability of the system was analyzed by using the stationary solution of the density matrix equations of motion and the laser field equation of an open ladder non-inverted laser system. The results show that the zero solution is unstable if the gain is greater than the laser cavity loss, the zero solution is stable if the gain is less than the laser cavity loss, and the non-zero solution is stable if the gain is greater than the laser cavity loss.