Patent ID: 11874404
Assignee: VOYANT PHOTONICS, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A system for LiDAR (light detection and ranging) chirp signal linearization comprising:
a first splitter for splitting a chirped laser signal from a laser into two optical signals;
an optical delay element for imparting a known delay on one of the two optical signals generating a delayed optical signal, the other of the two optical signals an undelayed optical signal; and
an optical 90° hybrid for
receiving said undelayed and delayed optical signals, and
generating a first IF optical signal output and a second IF optical signal output from said undelayed and delayed optical signals,, wherein said generating imparts a 90° relative IF phase shift between the first and second IF optical signal outputs, the first and second IF optical signal outputs corresponding to I/Q channels of an IF optical signal of a combination of the undelayed and delayed optical signals.