We present a novel absolute-distance meter based on double heterodyne interferometry. The synthetic wavelength is obtained with a pair of tunable Nd:YAG lasers operating at 1.064 mum. The nonambiguity range of the measurement can be arbitrarily extended by subsequent measurements with different synthetic wavelengths. Experimental results from a prototype breadboard prove the feasibility of a large-nonambiguity-range, high-resolution absolute-distance meter.

Tunable, double-wavelength heterodyne detection interferometer for absolute-distance measurements

MINONI, Umberto;DOCCHIO, Franco
1994-01-01

Abstract

We present a novel absolute-distance meter based on double heterodyne interferometry. The synthetic wavelength is obtained with a pair of tunable Nd:YAG lasers operating at 1.064 mum. The nonambiguity range of the measurement can be arbitrarily extended by subsequent measurements with different synthetic wavelengths. Experimental results from a prototype breadboard prove the feasibility of a large-nonambiguity-range, high-resolution absolute-distance meter.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11379/7004
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