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Proceedings Paper • Open Access

Absolute distance measurements by laser interferometry
Author(s): Rachel Thibout; Patrick Juncar; Laurence Pujol; Jacques Lizet; Jacques Berthon; Georges Otrio

Paper Abstract

A double-channel Michelson type interferometer is presented which allows absolute distance measurement up to 3 m with an uncertainty of 0.1 um. It used the principle of synthetic wavelength and can be used under vacuum or in any gaseous medium with the help of a new type of source called an air-wavelength standard. The CNES is interested in an absolute measurement both in space vacuum and on the ground, in air to characterize optical instruments.

Paper Details

Date Published: 12 August 2019
PDF: 9 pages
Proc. SPIE 10570, International Conference on Space Optics — ICSO 1997, 105702O (12 August 2019); doi: 10.1117/12.2550207
Show Author Affiliations
Rachel Thibout, CNES (France)
Patrick Juncar, Conservatoire National des Arts et Métiers (France)
Laurence Pujol, Radiall (France)
Jacques Lizet, CSO Mesure (France)
Jacques Berthon, Ctr. National d'Études Spatiales (France)
Georges Otrio, Ctr. National d'Études Spatiales (France)

Published in SPIE Proceedings Vol. 10570:
International Conference on Space Optics — ICSO 1997
Georges Otrio, Editor(s)

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