Real-Time and Meter-Scale Absolute Distance Measurement by Frequency-Comb-Referenced Multi-Wavelength Interferometry

We report on a frequency-comb-referenced absolute interferometer which instantly measures long distance by integrating multi-wavelength interferometry with direct synthetic wavelength interferometry. The reported interferometer utilizes four different wavelengths, simultaneously calibrated to the fr...

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Bibliographic Details

Published in:	Sensors
Main Authors:	Guochao Wang, Lilong Tan, Shuhua Yan
Format:	Article
Language:	English
Published:	MDPI AG 2018-02-01
Subjects:	absolute distance measurement frequency comb multi-wavelength interferometry direct synthetic wavelength interferometry non-ambiguous range
Online Access:	http://www.mdpi.com/1424-8220/18/2/500