Wide-Angle Vertical Coupling Gratings Enabled by Nano-Imprinted Microlens Array (W2B.9)
Presenter: Gan Xiao, Shen Zhen University
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.
Authors:Gan Xiao, Shen Zhen University / XuanMing Zhang, Southern university of science and technology / Fei Lou, Southern university of science and technology / Lei Lei, Shen Zhen University / Xin Cheng, Southern university of science and technology