Piché M, Paré C, Bélanger P A
Opt Lett. 1984 Jun 1;9(6):208-10. doi: 10.1364/ol.9.000208.
Mode locking of a homogeneous gain laser by a temporally modulated phase-conjugate mirror is investigated through a dispersive model. Phase conjugation is assumed to be due to degenerate four-wave mixing with external pumps consisting of two trains of temporally Gaussian pulses. Approximate solutions are found in terms of Gaussian pulses whose width depends on the duration of the pump pulses, the coherence time of the homogeneous gain medium, and the relaxation time of the nonlinear medium. Numerical solutions are in excellent agreement with the Gaussian-pulse solutions.
通过色散模型研究了利用时间调制相位共轭镜对均匀增益激光器进行锁模。假设相位共轭是由简并四波混频引起的，外部泵浦由两列时间高斯脉冲组成。根据高斯脉冲找到了近似解，其宽度取决于泵浦脉冲的持续时间、均匀增益介质的相干时间以及非线性介质的弛豫时间。数值解与高斯脉冲解非常吻合。
