多模干涉马赫-曾德尔光开关模型

Modeling of Maltimode Interference Mach Zehnder Interferometer Optical Switches

根据N×N多模干涉耦合器的基本原理 ,确定了多模干涉耦合器的结构参数。通过分析多模干涉耦合器的输入光场与其映像间的相位关系 ,提出了模传输矩阵的分析方法 ,并用此方法分析了N×N普通干涉多模干涉耦合器、N×N相移器以及N×N普通干涉多模干涉马赫 曾德尔光开关 ,得到了它们的模场传输方程 ,分析了光开关在光场从任一输入端输入 ,从任一输出端输出时开关的驱动条件。用上面的方法分析了 4×

N×N Multimode interference(MMI) couplers are investigated. The mode field transmitting matrix based on the phase relations in MMI couplers is introduced to analyze the MMI couplers. Field transmitting equations of MMI couplers, phase shifter and Mach Zehnder interferometer (MZI) optical switches are derived. The driving conditions of MZI switches for different switching situations are obtained by solving the field transmitting equations. The design of 4×4 switch is completed for a promising silicon on insulator waveguide structure.