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arXiv physics/0311006physics.optics
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与光子晶体波导耦合的有效输入和输出光纤

Efficient input and output fiber coupling to a photonic crystal waveguide

Paul E. Barclay, Kartik Srinivasan, Matthew Borselli, Oskar Painter

摘要:

研究了石英光纤锥与硅光子晶体波导之间的倏逝波耦合效率。光子晶体波导端部上的高反射率镜用于在反向传播光纤模式中反射最初耦合到光子晶体波导中的光功率。测量了后向传播光纤模式中的输出耦合功率为输入功率的88%,对应于耦合器效率的下限为94%。

英文摘要:

The efficiency of evanescent coupling between a silica optical fiber taper and a silicon photonic crystal waveguide is studied. A high reflectivity mirror on the end of the photonic crystal waveguide is used to recollect, in the backwards propagating fiber mode, the optical power that is initially coupled into the photonic crystal waveguide. An outcoupled power in the backward propagating fiber mode of 88% of the input power is measured, corresponding to a lower bound on the coupler efficiency of 94%.

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