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Proceedings Paper

Dispersive optical phased array circuit for high-resolution pixelated 2D far-field scanning controlled by a single wavelength variable
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Paper Abstract

We propose a 2D scanning optical phased array circuit that reconciliates the requirements of resolution and range in automotive LiDAR. Using only the wavelength of the laser source to scan in both x and y directions, we generate a discrete pixelated pattern in the far field, with both the required resolution and a sufficiently long Rayleigh range. We start from a 2D dispersive optical phased array consisting of wavelength-dependent grating coupler antennas and long delay lines with sufficient angular resolution, and then combine these into a larger array to achieve the required range specifications.

Paper Details

Date Published: 26 February 2020
PDF: 15 pages
Proc. SPIE 11284, Smart Photonic and Optoelectronic Integrated Circuits XXII, 112841Z (26 February 2020); doi: 10.1117/12.2544937
Show Author Affiliations
Wim Bogaerts, Ghent Univ. - IMEC (Belgium)
Marcus Dahlem, IMEC (Belgium)
Sarvagya Dwivedi, IMEC (Belgium)
Roelof Jansen, IMEC (Belgium)
Xavier Rottenberg, IMEC (Belgium)

Published in SPIE Proceedings Vol. 11284:
Smart Photonic and Optoelectronic Integrated Circuits XXII
Sailing He; Laurent Vivien, Editor(s)

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