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

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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Bibliographic Details
Published in2020 Conference on Lasers and Electro-Optics (CLEO) pp. 1 - 2
Main Authors Kong, Ziyun, Lee, Yun Jo, Noman, Abdullah Al, Tang, Yingheng, Chang, Gregory, Qi, Minghao
Format Conference Proceeding
LanguageEnglish
Published OSA 01.05.2020
Subjects
Couplings
Crosstalk
Optical arrays
Optical crosstalk
Optical surface waves
Optical waveguides
Phased arrays
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Summary: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.
DOI:10.1364/CLEO_AT.2020.AF3M.6