2024年3月12日 · 多模干涉耦合器（multimode interference）是集成光学中常用的分光器件，具有损耗低、带宽大、容差性好等优点，自映像原理是其实现分光的基础。文献中关于mmi的原理公式推导比较简洁，本文调研了几篇文献，对mmi的…

自成像效应 （Self-imaging effect，SIE）是MMI的理论基础，从输入端口注入的单模或多模光束，经过多模干涉区后将激发出多阶 导模 ，各阶导模之间具有不同的传播常数（由此产生相位差），在光的传播方向上的某一位置处产生相干叠加从而呈现与输入场一致的光场 ...

光耦合器可以视为一个二端口网络，二端口网络可以用传输矩阵来表示: \begin {bmatrix} b_ {1}\\ b_ {2} \end {bmatrix} =\begin {bmatrix} S_ {11}&S_ {12}\\ S_ {21}&S_ {22} \end {bmatrix} \begin {bmatrix} a_ {1}…

A traditional 2x1 multimode interference (MMI) coupler is utilized as the initial structure as Fig. 3(a) shows. The width of MMI is fixed to w=2μm and two 0.5μm wide waveguides act as inputs...

2020年9月28日 · 1. 当MMI_1x2作为合束器使用时，从其中一个端口输入时，为什么会有3dB的损耗？ 2. 当光从两个端口输入，相位相差pi时，输出端口的能量是0，那么消失的光强去哪里了？ 理论上，MMI_1x2的转移矩阵为，

Calculate the broadband transmission and optical loss through a 1×2 port multi-mode interference (MMI) coupler. Use the device S-parameters to create a compact model of the MMI in INTERCONNECT. It is also shown how to extract these parameters for compact model generation using the CML Compiler.

In an embodiment, am optical switch comprises a 2×1 multi-mode interferometer (MMI) coupler including two input waveguides jointly coupled to an output waveguide, and a photodetector coupled to...

When an MMI is excited by an incident wave, the field profile is decomposed into the eigenmodes. Even though there is no exchange of energy between these eigenmodes, they propagate at a different velocity, and the result is an interference pattern …

Embodiments are provided for an improved 2x1 switch cell design with integrated photodiode for off-state monitoring. In an embodiment, am optical switch comprises a 2x1 multi-mode...

The need to adapt the dimensions of the Y waveguide and apply the more restrictive conditions of a coherent regime for laser emission and waveguide mixing, led us to try an MMI coupler to focus the output signal. Herein, ideal 2x1 MMI for this purpose are presented in schematic form.