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研究了任意拓扑结构波分复用（ＷＤＭ）全光网中的波长数目的需求情况，给出了基于最小级数（ＭＮＨ）的波长分配算法，并提出基于ＭｏｎｔｏＣａｌｏ方法的ＭＮＨ算法，克服了简单ＭＮＨ算法的缺点，减少了网络的波长需求数目。此外还提出优化这种网络结构的新算法，通过在通信负载较重的节点间增加合适数目的并行光纤，明显减少了系统需求的波长数目，提高了波长利用率。数值结果表明，该算法可以使系统所需波长数目接近最优值，为ＷＤＭ全光通信网的波长资源分配提供了一种有效的设计方法。
The demand of wavelength in WDM (All Optical Network) is studied. The algorithm of wavelength assignment based on the minimum number of stages (MNH) is given and the MNH algorithm based on MontoCalo method is proposed, which overcomes the problem of simple The disadvantages of the MNH algorithm reduce the number of wavelength requirements of the network. In addition, a new algorithm to optimize this network structure is proposed. By increasing the appropriate number of parallel fibers between nodes with heavy communication load, the number of wavelengths required by the system is significantly reduced and the wavelength utilization rate is improved. The numerical results show that the proposed algorithm can make the number of required wavelengths close to the optimal value and provide an effective design method for wavelength resource allocation in WDM optical networks.