以耦合Ginzburg-Landau方程为模型,对石墨烯锁模光纤激光器中脉冲的动力学行为进行了详细地研究。首先,采用拟解法推导了该方程组的啁啾类暗暗孤子对解;其次,对啁啾类暗暗孤子对的传输特性及稳定性进行了数值研究。结果表明:合理选择系统参数,不仅可以得到啁啾类暗暗孤子对的精确解,而且该精确解还可以在一定的扰动下稳定传输。相关结果将为设计和改善石墨烯锁模光纤激光器的性能提供一定的理论依据。 The coupled Ginzburg-Landau equation is used as a model to study the pulse dynamics in graphene mode-locked fiber lasers. Firstly, the soliton of the chirp-like solitons in the system is deduced by using the solution method. Secondly, the transmission properties and the stability of the chirp-like soliton pairs are studied numerically. The results show that the reasonable choice of system parameters can not only obtain the exact solution of the chirp-like secret soliton pair, but also the exact solution can be transmitted stably with a certain disturbance. The results will provide some theoretical basis for designing and improving the performance of graphene mode-locked fiber laser.