Real-time LiDAR module with 64x128-pixel CMOS SPAD array and 940-nm PCSEL

An Tai Hsiao, Chun Hsien Liu, Po Hsuan Chen, Yao Lun Liu, Wei Chi Wang, Tzu Hsien Sang, Chia Ming Tsai, Gray Lin, Jiun In Guo, Sheng Di Lin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

High-performance light detection and ranging (LiDAR) modules are highly demanded for advanced driving assistance system and autonomous driving. The high power level of emitter required for long-distance ranging is one of the key issues to be addressed to realize commercially affordable vehicle LiDAR. In this work, for the first time, we demonstrate a low-cost real-time LiDAR module by using CMOS-fabricated 64x128-pixel single-photon avalanche diode (SPAD) array, a 940-nm photonic-crystal surface-emitting laser (PCSEL), and a FPGA card for control and signal processing. Thanks to the high-sensitivity of SPAD and small divergence angle of PCSEL, a 60-m 3-D imager has been realized with a low laser peak power of ∼0.5 W. The ranging distance and frame rate are 60 m and 10 frames per second, respectively, for the target reflectivity of 10% - 90% and the sunlight condition of 0 - 50k lux. Our work reveals the great potential of these two intriguing devices for making low-cost high-performance vehicle LiDARs.

Original languageEnglish
Title of host publication2022 IEEE Sensors Applications Symposium, SAS 2022 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665409810
DOIs
StatePublished - 2022
Event17th IEEE Sensors Applications Symposium, SAS 2022 - Sundsvall, Sweden
Duration: 1 Aug 20223 Aug 2022

Publication series

Name2022 IEEE Sensors Applications Symposium, SAS 2022 - Proceedings

Conference

Conference17th IEEE Sensors Applications Symposium, SAS 2022
Country/TerritorySweden
CitySundsvall
Period1/08/223/08/22

Keywords

  • CMOS technology
  • LiDAR
  • Single-photon avalanche diodes
  • photonic-crystal surface-emitting laser

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