mode-resolved frequency comb interferometry for high-accuracy long distance measurement - high accuracy laser distance measurement

Optical frequency comb has developed into a powerful tool for distance measurement.
In this paper, we show the absolute long distance measurement using a single frequency comb laser as multiple frequency comb lasers
Long Wave source.
High through application
A resolution spectrometer based on a virtual imaging phase array, the frequency comb pattern is distinguished by the spectrum to the level of a single pattern.
The frequency comb is stabilized on the atomic clock, and thousands of precisely known wavelengths can be obtained for interference measurement.
The distance is derived from the spectral resolution output of the Michael son interferometer.
The proposed measurement method combines spectral interference, white light interference and multiple
Wavelength interference measurement in a single scheme.
The comparison with the fringe counting laser interferometer shows that the agreement is reached within a distance of 50 m in the range of