TUNABLE, DOUBLE-WAVELENGTH HETERODYNE-DETECTION INTERFEROMETER FOR ABSOLUTE-DISTANCE MEASUREMENTS

Authors
GELMINI E MINONI U DOCCHIO F
Citation
E. Gelmini et al., TUNABLE, DOUBLE-WAVELENGTH HETERODYNE-DETECTION INTERFEROMETER FOR ABSOLUTE-DISTANCE MEASUREMENTS, Optics letters, 19(3), 1994, pp. 213-215
Citations number
11
Categorie Soggetti
Optics
Journal title
Optics letters → ACNP
ISSN journal
01469592
Volume
19
Issue
3
Year of publication
1994
Pages
213 - 215
Database
ISI
SICI code
0146-9592(1994)19:3<213:TDHIFA>2.0.ZU;2-J
Abstract
We present a novel absolute-distance meter based on double heterodyne interferometry. The synthetic wavelength is obtained with a pair of tu nable 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 pro totype breadboard prove the feasibility of a large-nonambiguity-range, high-resolution absolute-distance meter.