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根据多模干涉器 (MMI)的自映像原理 ,讨论了一般 1×N多模干涉器件的成像位置和相位关系 ,并用导模传输法验证了分析结果 ,一般的成像位置和相对相位关系同原像的初始位置密切相关
According to the self-mapping principle of multimode interferometer (MMI), the imaging position and phase relationship of a general 1 × N multimode interference device are discussed. The results of the analysis are verified by guided mode transmission. The general imaging position and relative phase relationship are the same as the original The initial position of the image is closely related