Patent ID: 11953627
Assignee: AEVA, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. A method of light detection and ranging (LiDAR), comprising:
multiplexing a first optical beam and a second optical beam into a combined beam having orthogonal linear polarizations;
splitting a portion of the combined beam to generate a multiplexed local oscillator signal comprising a first local oscillator signal and a second local oscillator signal;
emitting the combined beam towards a target and collecting light returned from the target in a return optical beam;
demultiplexing the return optical beam and the multiplexed local oscillator signal into a first return beam combined with the first local oscillator signal and a second return beam combined with the second local oscillator signal, and wherein the first return beam and the first local oscillator signal generate a first beat frequency and the second return beam and the second local oscillator signal generate a second beat frequency; and
determining a range and velocity of the target from the first beat frequency and the second beat frequency.