用主方程方法研究了有压缩光入射的腔中受激光场驱动的Λ型三能级原子的稳态行为，在劣质腔近似下讨论了原子的稳态粒子布居值的特点．发现腔的作用降低了压缩真空中的双光子关联；原子的相干跃迁速率和压缩真空的位相对原子的稳态粒子布居有很大影响 The main equation method is used to study the steady-state behavior of a Λ-type three-level atom driven by a laser field in a cavity with compressed light. The properties of steady-state particle population of atoms are discussed in the inferior cavity approximation. It is found that the action of the cavity reduces the two-photon correlation in the compressed vacuum; the coherent transition rate of atoms and the position of the compressed vacuum have a great influence on the population of steady-state particles of atoms