A chirp grating is placed inside a multimode interference (MMI) structure to shorten the device length and increase wavelength tolerance.
A chirp grating is placed inside a multimode interference (MMI) structure to shorten the device length and increase wavelength tolerance.
爲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。