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

Claim 15:
16. The method of claim 14, wherein determining whether a phase error for the chirp segment is acceptable includes:
performing a smoothing of the instantaneous phase of the IF optical signal for the chirp segment generating a smoothed instantaneous phase of the IF optical signal for every data point of the chirp segment;
determining a nominal phase for every data point of the chirp segment;
determining a phase error for every data point of the chirp segment with use of the nominal phase and the smoothed instantaneous phase of the IF optical signal;
using a metric, assigning a single value characterizing the phase error for at least a portion of the chirp segment; and
comparing the single value with an acceptability threshold,, and wherein generating said new pre-distorted digital chirp waveform data for the chirp segment includes:
determining a correction factor for every data point of the chirp segment with use of the phase error; and
determining new pre-distorted chirp waveform data with use of current chirp waveform data and the correction factor.