两组份纠缠态光场是量子信息和量子计算的基本资源，随着研究的深入发展，为了完成更高效的量子信息处理，必须首先获得高纠缠度的两组份纠缠态光场。而通过操控实现纠缠光场纠缠度增加是目前提高纠缠光场质量的一个行之有效的办法。相干反馈控制由于不会带入额外噪声至光学参量系统的特点已经被实验证明可以用于压缩态光场压缩度的增强。理论计算增加了相干反馈系统的非简并光学参量放大器输出的两组份纠缠态光场的量子关联噪声与各系统参数的关系，并详细分析了各参数对相干反馈纠缠增强的影响，为进一步获得更高纠缠度的两组份纠缠态光场提供参考。

Einstein-Podolsky-Rosen (EPR) entangled state is an essential resource in quantum information and quantum computation. With the deep development of research, bipartite entangled states of light with high entangled degree should be obtained firstly to complete quantum information processing efficiently. It has been proved an effective method to improve the quality of entangled light field by manipulation of entangled states of light. Coherent feedback control has been proved to enhance the squeezed degree of the squeezed state light field because of bring no additional noise to the optical parametric system. We theoretically calculate the relationship between the quantum correlation noise of the EPR entangled state generated from coherent feedback control non-degenerate optical parametric amplifier and various parameters of the total system, and the influence of these parameters on the entanglement enhancement is also analyzed detailedly. This provides references for further research on the EPR entangled state with higher entangled degree.