Techniques for performing speckle reduction using polarized light
AssigneeAeva, Inc.
InventorsNeal N. Oza, Omer P. Kocaoglu, Behsan Behzadi, Oguzhan Avci, Keith Gagne, Mina Rezk
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Abstract
A method of operating a frequency-modulated continuous wave (FMCW) light detection and ranging (LIDAR) system is provided. The method includes transmitting a beam of co-propagating, cross-polarized light to a target. The method includes receiving return light reflected from the target by at least one detector. The method further includes transforming a polarization state of the beam at a transformation rate faster than a data collection rate from the at least one detector.
Claims20
A method of operating a frequency-modulated continuous wave (FMCW) light detection and ranging (LIDAR) system comprising:
- transmitting a beam of co-propagating, cross-polarized light to a target;
- receiving return light reflected from the target by at least one detector;
- and
- transforming a polarization state of the beam at a transformation rate faster than a data collection rate from the at least one detector.
A frequency-modulated continuous wave (FMCW) light detection and ranging (LIDAR) apparatus comprising:
- an optical transmitter to transmit a beam of co-propagating, cross-polarized light to a target;
- at least one detector to receive return light reflected from the target;
- and
- a variable polarization rotator to transform a polarization state of the beam at a transformation rate faster than a data collection rate from the at least one detector.
A frequency-modulated continuous wave (FMCW) light detection and ranging (LIDAR) system comprising:
- a plurality of optical circuits to generate and receive a laser beam, the plurality of optical circuits comprising:
- an optical transmitter to transmit a beam of co-propagating, cross-polarized light to a target;
- at least one detector to receive return light reflected from the target;
- and
- a variable polarization rotator to transform a polarization state of the beam at a transformation rate faster than a data collection rate from the at least one detector.
Dependencies are inferred from the claim text.