Design of 2D Optical Phased Array Emitters with Half-Wavelength Spacing and Less than −20 dB Crosstalk

Ziyun Kong,Yun Jo Lee,Abdullah Al Noman,Yingheng Tang,Gregory Chang,Minghao Qi

2020 Conference on Lasers and Electro-Optics (CLEO)（2020）

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摘要

We propose a multi-layered, 2D optical phased array capable of 180° × 180° beam steering range without wavelength tuning. Evanescent coupling between half-wavelength spaced waveguides is suppressed below −20 dB through index-mismatch and extreme skin-depth metamaterial waveguides.

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关键词

skin-depth metamaterial waveguides,index-mismatch,optical multilayer,2D optical phased array emitter design,half-wavelength spaced waveguides,evanescent coupling,beam steering range,optical crosstalk

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