Frequency-Modulated Continuous Wave (FMCW) LiDAR

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Bridger’s distance measurement technology is based on frequency-modulated continuous-wave (FMCW). Light from a frequency-swept, or “chirped”, laser is split into two portions; one portion (Tx) is transmitted to the target while the second portion (LO) is kept local and does not travel to the target. The laser light returning from the target (Rx) is interferometrically recombined with the LO and detected.