CAJ | 학술논문

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4×4光开关的结构及驱动条件。
근거N×N다모간섭우합기적기본원리，학정료다모간섭우합기적결구삼수。통과분석다모간섭우합기적수입광장여기영상간적상위관계，제출료모전수구진적분석방법，병용차방법분석료N×N보통간섭다모간섭우합기、N×N상이기이급N×N보통간섭다모간섭마혁-증덕이광개관，득도료타문적모장전수방정，분석료광개관재광장종임일수입단수입，종임일수출단수출시개관적구동조건。용상면적방법분석료4×4광개관적결구급구동조건。
N×N Multimode interference(MMI) couplers are investigated. Themode 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.