中文摘要：

提出了一种新的近红外多用户量子密钥分发中波长交换方案,解决了量子网络中信息交互难题;分析了交换过程中近红外单光子束的偏振变换;仿真了波长交换效率和泵浦光功率之间关系.仿真结果表明,该方案可行并且高效.

英文摘要：

A new scheme of wavelength switching in multiuser near-infrared quantum cryptography networks has been proposed. Solution is provided for information exchange in quantum network, the unchanged polarization in the course of switching is also analyzed. In addition, the relation between conversion efficiency and pump power is simulated. The results show that this scheme is feasible and effective.