Precision and accuracy testing of FMCW ladar-based length metrology.

  title={Precision and accuracy testing of FMCW ladar-based length metrology.},
  author={Ana Baselga Mateo and Zeb W. Barber},
  journal={Applied optics},
  volume={54 19},
The calibration and traceability of high-resolution frequency modulated continuous wave (FMCW) ladar sources is a requirement for their use in length and volume metrology. We report the calibration of FMCW ladar length measurement systems by use of spectroscopy of molecular frequency references HCN (C-band) or CO (L-band) to calibrate the chirp rate of the FMCW sources. Propagating the stated uncertainties from the molecular calibrations provided by NIST and measurement errors provide an… 

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