DMD-based diffractive FOV expansion for real-time flash lidar with 2D multi-pixel photon counter

Jeff Ching Wen Chan, Chin I. Tang, Xianyue Deng, Yuzuru Takashima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

We demonstrated a real-time lidar system that utilizes a Digital Micromirror Device (DMD) as a field of view (FOV) expander and a 2D Multi-Pixel Photon Counter (MPPC) as a lidar sensor. By synchronizing the dynamic transition of DMD micromirrors between on- and off-states with the MPPC and a nanosecond pulse laser, the receiver FOV is diffractively steered to expected direction enabled by timing the delay of micromirrors transition to the laser. The DMDMPPC lidar can capture up to 7 diffraction orders of high-resolution geospatial data. By applying the laser beam steering technique, this system is able to span over 35 degrees FOV, which is 10 times expansion of FOV compared to the single lidar detector FOV. In this work, as a preliminary demonstration towards diffractive FOV expansion, we presented the high resolution lidar images while DMD is switching between on and off state. Also, we performed distance resolution testing to validate the functionality of DMD-MPPC flash lidar system.

Original languageEnglish (US)
Title of host publicationODS 2022
Subtitle of host publicationIndustrial Optical Devices and Systems
EditorsRyuichi Katayama, Yuzuru Takashima
PublisherSPIE
ISBN (Electronic)9781510654464
DOIs
StatePublished - 2022
EventODS 2022: Industrial Optical Devices and Systems - San Diego, United States
Duration: Aug 21 2022 → …

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12231
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceODS 2022: Industrial Optical Devices and Systems
Country/TerritoryUnited States
CitySan Diego
Period8/21/22 → …

Keywords

  • beam steering
  • Digital Micromirror Device (DMD)
  • Field-of-view (FOV)
  • Lidar
  • Multi-Pixel Photon Counter (MPPC)
  • solid-state lidar
  • Time-of-flight (ToF)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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