在考虑耦合器插入损耗的情况下,理论分析了环中环结构谐振腔的耦合谐振透明效应.利用迭代法推导了整个结构的透过系数和有效相移,从而得到考虑了插入损耗的该结构的色散.研究表明,整个结构的有效相移,群速度和带宽,可通过耦合器的插入损耗、环中环结构中环与环周长之间的倍数以及环的个数来控制,这在旋转传感、光学时延线、光缓存、滤波等方面的应用有重要意义. In consideration of the insertion loss of the coupler, the coupled resonance transparency of ring resonators in a ring is theoretically analyzed, and the transmission coefficient and effective phase shift of the whole structure are deduced by using the iterative method, so that the structure with the insertion loss Dispersion.The research shows that the effective phase shift, group velocity and bandwidth of the whole structure can be controlled by the insertion loss of the coupler, the multiple between the ring and the perimeter of the ring in the ring and the number of the rings, Delay line, optical cache, filtering and other aspects of the application of great significance.