针对四能级N型原子系统,研究了与原子跃迁相关的量子相干烧孔现象.通过密度算符运动方程、拉氏变换法以及量子回归理论,求得了探测场的吸收谱.采用两束耦合光和一束饱和光同时作用,随后分别研究了在两束耦合光同时与探测光同向传播,饱和光与探测光反向传播,以及耦合光、饱和光、探测光均沿着同一方向传播的两种典型的传播机制和不同参数的调节下相干光学烧孔的形成特点,最后通过缀饰态理论计算并分析了结果的正确性.最多观测到六个相干光学烧孔.耦合光的拉比频率的大小影响着相干光学烧孔的形成位置,而饱和光拉比频率的大小将决定着形成相干光学烧孔的深度.该结果完善了相干光学烧孔的理论研究,对于以后应用到光学量子存储有理论指导意义.“,”Coherent hole-burning effect in four-level N-style atoms vapors with level transitions was discussed. The absorption spectrum was in detail studied through density operator motion equations, Laplace transformation and quantum regression theorem. In the model two coupling light and one saturated light were adopted to interact. The features of the optical hole-burning were investigated via various adjusting parameters in two optical routing: one was that the two coupling lights co-propagated with the probe light but the saturated light was opposite, and another was that they all propagated on the same direction. And the calculation results were analyzed with the dressed states theory. At most six coherent hole-burning could be simultaneously observed. The depth of the coherent hole-burning could be changed by adjusting the reference parameters and the Rabi frequency of the saturated laser. The positions of the coherent hole-burning could be changed by modulating the Rabi frequency of the probe light. The understanding of the coherent hole-burning was deepened by these reslut.