Wide-angle vertical coupling gratings enabled by nano-imprinted microlens array.

Gan Xiao, Xuanming Zhang,Fei Lou,Lei Lei, Xin Cheng

Optical Fiber Communications Conference and Exhibition（2024）

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摘要

We experimentally show a vertical grating coupler featuring extended coupling angles through nano-imprinted lens array. This nanostructure exhibits a 2-3.4 dB increase in coupling efficiency within the ±15° angular range compared to the bare device.

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关键词

Microlens Array,Vertical Gratings,Vertical Coupling,Nanomaterials,Coupling Efficiency,Angular Range,dB Increase,Field Of View,Inductively Coupled Plasma,Optical Fiber,Incident Angle,Continuous Wave,Angle Range,Electron Beam Lithography,Normal Incidence,Photonic Integrated Circuits,Polyethylene Terephthalate Film,Range Of Incident Angles

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