Many-Wavelength Interferometry with Thousands of Lasers for Absolute Distance Measurement

Author(s): S. A. van den Berg, S. T. Persijn, G. J. P. Kok, M. G. Zeitouny, and N. Bhattacharya

We demonstrate a new technique for absolute distance measurement with a femtosecond frequency comb laser, based on unraveling the output of an interferometer to distinct comb modes with 1 GHz spacing. From the fringe patterns that are captured with a camera, a distance is derived by combining spectr...

[Phys. Rev. Lett. 108, 183901] Published Tue May 01, 2012


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