A novel design of ultrahigh efficiency and ultralow threshold energy all-optical switches based on local state transition of complete-connected optical waveguide networks (CCOWNs) is proposed. The generation of the ultra-narrow transmission peak and the ultra-strong photonic localization in network is attributed to the mutation of states, which are significant improvements in the performance of all-optical switch. First, the ultra-strong photonic localization induces the Kerr effect in nonlinear material, which transforms the transmission peaks into a transmission valley and results in the super-high efficiency. The efficiency of switch based on CCOWN with 11 unit cell (UC) and each UC possessing 7 nodes was calculated and found to be approximately \(1.38 \times 10^{39}\), which is 13 orders of magnitude better than previously reported. Furthermore, the ultra-strong photonic localization also leads to the ultralow threshold energy. Calculations reveal that the threshold control energy of all-optical switch based on CCOWN only with 7 UC and each UC possessing 5 nodes is about \(5.78 \times 10^{-30}\) J, which is 5 orders of magnitude smaller than the best reported results. In addition, fitting formulas for the transmission and switching efficiency with UC number have been derived, and the results show that the switching efficiency increased exponentially with the UC number and nodes. This study not only presents a new model for designing all-optical switch with outstanding performance, but also provides the possibility for further practical use of all-optical switch, while deepening our insight into optical waveguide networks.

提出了一种基于全连接光波导网络（CCOWN）局部状态转换的超高效率、超低阈值能量全光开关的新颖设计。网络中超窄传输峰和超强光子局域化的产生归因于状态的突变，这是全光开关性能的显着提高。首先，超强光子局域化在非线性材料中引发克尔效应，将传输峰转变为传输谷，从而实现超高效率。计算了基于 CCOWN 的具有 11 个单位单元 (UC)、每个 UC 拥有 7 个节点的开关效率，结果约为\(1.38 \times 10^{39}\) ，比之前报道的要好 13 个数量级。此外，超强的光子局域化还导致超低的阈值能量。计算表明，仅7个UC、每个UC拥有5个节点的基于CCOWN的全光开关的阈值控制能量约为\(5.78\times 10^{-30}\) J，比最佳报告结果。此外，还推导了传输效率和开关效率与UC数量的拟合公式，结果表明，开关效率随着UC数量和节点数呈指数增长。这项研究不仅为设计性能优异的全光开关提供了一种新模型，也为全光开关的进一步实用化提供了可能性，同时加深了我们对光波导网络的认识。