Few-mode frequency-modulated LiDAR receivers
Abstract
We present a few-mode frequency-modulated receiver for light detection and ranging (LiDAR). We show that using a few-mode local oscillator (LO) with spatial modes at different frequencies at the receiver can significantly improve the performance of the LiDAR detection range. A preferred receiver architecture features LO modes with unequal frequency separations based on optical orthogonal codes (OOC) to allow range detection via cross correlation. The required signal-to-noise ratio (SNR) for the frequency-modulated continuous wave (FMCW) LiDAR decreases with the number of LO modes. This receiver can have a potential impact in the area of automotive LiDARs.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- May 29, 2020
- Source ID
- 10.1364/ol.393929
Entities
People
- Alireza Fardoost
- Fatemeh Ghaedi Vanani
- Guifang Li
- He Wen
Organizations
- Army Research Office
- National Science Foundation