In order to design and make multimode interference (MMI) couplers, the imaging positions must be located accurately.
多模干涉(MMI)耦合器需要精确定位成像位置，以便器件的设计制作。
An array waveguide grating (AWG) based on multimode interference (MMI) is considered.
研究了基于多模干涉(MMI)耦合器的阵列波导光栅(awg)。
A chirp grating is placed inside a multimode interference (MMI) structure to shorten the device length and increase wavelength tolerance.
为了缩短组件长度并增加波长变动容忍度，我们在多模干涉结构里面旋转一个周期渐变光栅。
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