Laser & Photonics Review· 2022Q1· Review
A Progress Review on Solid‐State LiDAR and Nanophotonics‐Based LiDAR Sensors
- 308citations
- Q1SCImago
- 2022year
Short summary
Solid-state LiDAR, using flash, MEMS, or OPA, overcomes the reliability, size, and cost limitations of traditional mechanical scanners, with emerging nanophotonics offering further advantages for 3D sensing.
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Key points
- Solid-state LiDAR technologies (flash, MEMS, OPA) offer solutions to the limitations of mechanical scanners.
- Nanophotonics-based devices present advanced optics for superior LiDAR sensor performance.
- LiDAR principles including pulsed TOF, AMCW TOF, and FMCW TOF are introduced.
- The review summarizes recent advances in both conventional solid-state and emerging nanophotonics LiDAR.
AI-generated from the title and abstract; the full text is not read.
Abstract
Abstract Light detection and ranging (LiDAR) sensors enable precision sensing of an object in 3D. LiDAR technology is widely used in metrology, environment monitoring, archaeology, and robotics. It also shows high potential to be applied in autonomous driving. In traditional LiDAR sensors, mechanical rotator is used for optical beam scanning, which brings about limitations on their reliability, size, and cost. These limitations can be overcome by a more compact solid‐state solution. Solid‐state LiDAR sensors are commonly categorized into the following three types: flash‐based LiDAR, microelectromechanical system (MEMS)‐based LiDAR, and optical phased array (OPA)‐based LiDAR. Furthermore, advanced optics technology enables novel nanophotonics‐based devices with high potential and superior advantages to be utilized in a LiDAR sensor. In this review, LiDAR sensor principles are introduced, including three commonly used sensing schemes: pulsed time of flight (TOF), amplitude‐modulated continuous wave TOF, and frequency‐modulated continuous wave. Recent advances in conventional solid‐state LiDAR sensors are summarized and presented, including flash‐based LiDAR, MEMS‐based LiDAR, and OPA‐based LiDAR. The recent progress on emerging nanophotonics‐based LiDAR sensors is also covered. A summary is made and the future outlook on advanced LiDAR sensors is provided.
The authors' abstract, as published at the source. Laser & Photonics Review, 2022 · DOI ↗
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Field: Instrumentation
InstrumentationPhysics and Astronomy