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Method of reducing insertion loss in a transition region between a plurality of input or output waveguides to a free space coupler region
Method of reducing insertion loss in a transition region between a plurality of input or output waveguides to a free space coupler region
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机译:减少在多个输入或输出波导到自由空间耦合器区域之间的过渡区域中的插入损耗的方法
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摘要
A method for reducing insertion loss in a transition region between a plurality of input or output waveguides to a free space coupler region in a photonic integrated circuit (PIC) includes the steps of forming a passivation layer over the waveguides and region and forming the passivation overlayer such that it monotonically increases in thickness through the transition region to the free space coupler region.
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