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A review and perspective on optical phased array for automotive LiDAR

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Hsu, Ching-Pai, Li, Boda, Solano-Rivas, Braulio, Gohil, Amar, Chan, Pak Hung, Moore, Andrew D. and Donzella, Valentina (2021) A review and perspective on optical phased array for automotive LiDAR. IEEE Journal of Selected Topics in Quantum Electronics, 27 (1). pp. 1-16. doi:10.1109/JSTQE.2020.3022948 ISSN 1077-260X.

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Official URL: https://doi.org/10.1109/JSTQE.2020.3022948

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Abstract

This paper aims to review the state of the art of Light Detection and Ranging (LiDAR) sensors for automotive applications, and particularly for automated vehicles, focusing on recent advances in the field of integrated LiDAR, and one of its key components: the Optical Phased Array (OPA). LiDAR is still a sensor that divides the automotive community, with several automotive companies investing in it, and some companies stating that LiDAR is a ‘useless appendix’. However, currently there is not a single sensor technology able to robustly and completely support automated navigation. Therefore, LiDAR, with its capability to map in 3 dimensions (3D) the vehicle surroundings, is a strong candidate to support Automated Vehicles (AVs). This manuscript highlights current AV sensor challenges, and it analyses the strengths and weaknesses of the perception sensor currently deployed. Then, the manuscript discusses the main LiDAR technologies emerging in automotive, and focuses on integrated LiDAR, challenges associated with light beam steering on a chip, the use of Optical Phased Arrays, finally discussing current factors hindering the affirmation of silicon photonics OPAs and their future research directions.

Item Type: Journal Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TE Highway engineering. Roads and pavements
T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Divisions: Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group)
Library of Congress Subject Headings (LCSH): Phased array antennas, Phased array antennas -- Automatic control, Automated vehicles, Intelligent transportation systems, Photonics -- Materials, Silicon -- Optical properties, Optical radar
Journal or Publication Title: IEEE Journal of Selected Topics in Quantum Electronics
Publisher: IEEE
ISSN: 1077-260X
Official Date: January 2021
Dates:
DateEvent
January 2021Published
9 September 2020Available
4 September 2020Accepted
Volume: 27
Number: 1
Page Range: pp. 1-16
DOI: 10.1109/JSTQE.2020.3022948
Status: Peer Reviewed
Publication Status: Published
Reuse Statement (publisher, data, author rights): © 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Access rights to Published version: Restricted or Subscription Access
Copyright Holders: IEEE
Date of first compliant deposit: 16 October 2020
Date of first compliant Open Access: 26 October 2020

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