| Authors: | W. Bogaerts, M. Dahlem, S. Dwivedi, R. Jansen, X. Rottenberg | | Title: | Dispersive optical phased array circuit for high-resolution pixelated 2D far-field scanning controlled by a single wavelength variable | | Format: | International Conference Proceedings | | Publication date: | 2/2020 | | Journal/Conference/Book: | Photonics West (OPTO)
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| | Editor/Publisher: | SPIE, | | Volume(Issue): | 11284 p.112841Z | | Location: | San Francisco, United States | | DOI: | 10.1117/12.2544937 | | Citations: | 6 (Dimensions.ai - last update: 15/12/2024)
4 (OpenCitations - last update: 27/6/2024)
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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. Related Research Topics
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