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本文提出等效电流计算光波导耦合理论。推导证明,近年来发展的平行光波导横向耦合公式及棱镜光波导耦合公式均可统一由等效电流理论得出,同时多模光波导的模式耦合理论也可同样处理得到。本理论应用于光波导耦合问题易于得到普遍的结论。
In this paper, the equivalent current calculation of optical waveguide coupling theory is proposed. The deduction proves that the parallel optical waveguide transverse coupling formula and the prism optical waveguide coupling formula developed in recent years can all be unified by the equivalent current theory, and the mode coupling theory of multimode optical waveguide can also be treated in the same way. The application of this theory to optical waveguide coupling tends to be generalized.