多模干涉器件中的Talbot效应

Talbot Effects in Multimode Interference Devices

将Talbot效应引入MMI器件中,并采用导模传输理论给予证明。在波导中,由于波导的限制只能传输离散的模式,这些离散的不同模式的相干传输结果,在MMI器件中产生正像、反像和多重像的Talbot效应。

We introduce the Talbot effect in to MMI devices. The effect is demonstrated by using guided-mode propagation analysis method in this paper. The dispersion modes, which are interference, are only propagated in waveguides, which produce Talbot effects of positive image, inverted image and multi-imaging in MMI devices.