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Conferences > ASSL > 1996 > NL > NL6

Precision Distance Measurements Using Frequency Stabilized Nd:YAG Lasers

V. Mahal, E. Inbar, and A. Arie

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Abstract

Accurate distance measurements with large non-ambiguity range are achieved by two-wavelength interferometry using Nd:YAG lasers locked to sub-Doppler molecular transitions of iodine and cesium. Fringe contrast, as well as phase shifting interferometry are used to determine the distance. The measurement accuracy for a synthetic wavelength of 19.643 ± 0.001 mm is 70 pm.

© 1996 Optical Society of America

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