Abstract
A novel method of beam steering enables a large field of view and reliable single chip light detection and ranging (lidar) by utilizing a mass-produced digital micromirror device (DMD). Using a short pulsed laser, the micromirrors’ rotation is frozen in mid-transition, which forms a programmable blazed grating. The blazed grating efficiently redistributes the light to a single diffraction order, among several. We demonstrated time of flight measurements for five discrete angles using this beam steering method with a nano second 905nm laser and Si avalanche diode. A distance accuracy of < 1 cm over a 1 m distance range, a 48° full field of view, and a measurement rate of 3.34k points/s is demonstrated.
Original language | English (US) |
---|---|
Pages (from-to) | 14732-14745 |
Number of pages | 14 |
Journal | Optics Express |
Volume | 25 |
Issue number | 13 |
DOIs | |
State | Published - Jun 26 2017 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Fingerprint
Dive into the research topics of 'Single chip lidar with discrete beam steering by digital micromirror device'. Together they form a unique fingerprint.Datasets
-
Visualization 5: Single chip lidar with discrete beam steering by digital micromirror device
Smith, B. (Creator), Hellman, B. (Creator), Gin, A. (Creator), Espinoza, A. (Creator) & Takashima, Y. (Creator), Optica Publishing Group, 2017
DOI: 10.6084/m9.figshare.5154226, https://opticapublishing.figshare.com/articles/media/Visualization_5_Single_chip_lidar_with_discrete_beam_steering_by_digital_micromirror_device/5154226
Dataset
-
Visualization 2: Single chip lidar with discrete beam steering by digital micromirror device
Smith, B. (Creator), Hellman, B. (Creator), Gin, A. (Creator), Espinoza, A. (Creator) & Takashima, Y. (Creator), Optica Publishing Group, 2017
DOI: 10.6084/m9.figshare.5154205, https://opticapublishing.figshare.com/articles/media/Visualization_2_Single_chip_lidar_with_discrete_beam_steering_by_digital_micromirror_device/5154205
Dataset
-
Visualization 3: Single chip lidar with discrete beam steering by digital micromirror device
Smith, B. (Creator), Hellman, B. (Creator), Gin, A. (Creator), Espinoza, A. (Creator) & Takashima, Y. (Creator), Optica Publishing Group, 2017
DOI: 10.6084/m9.figshare.5154208, https://opticapublishing.figshare.com/articles/media/Visualization_3_Single_chip_lidar_with_discrete_beam_steering_by_digital_micromirror_device/5154208
Dataset