Apodized Slanted Grating Couplers for LiDAR Applications
Optics
2024-01-17 v1 Applied Physics
Abstract
Solid state LiDAR systems traditionally rely on costly active components for efficient beam scanning. In this study, we propose a cost-effective, purely passive steering approach using apodized slanted grating couplers. Through apodization, we achieve a uniform upward emission profile and enhanced upward transmission. Theoretical calculations indicate successful steering of 91.5x42.8. Experimental results closely match theoretical predictions, validating the capabilities of our passive steering concept. Additionally, the grating couplers, with a length of 3mm, enable a farfield FWHM of 0.026, further enhancing sensing resolution.
Cite
@article{arxiv.2401.08515,
title = {Apodized Slanted Grating Couplers for LiDAR Applications},
author = {Vahram Voskerchyan and Francis and Tian and Francisco M. Soares and David Alvarez Outerelo and Francisco J. Diaz-Otero},
journal= {arXiv preprint arXiv:2401.08515},
year = {2024}
}