Laser diodes based absolute distance meter

Author

Guillory, J. ; Wallerand, Jean-Pierre ; Obaton, Anne-Francoise ; Alexandre, Celina

Author_Institution

Lab. Commun de Metrol. LNE, Cnam (LCM), Paris, France

fYear

2014

fDate

24-29 Aug. 2014

Firstpage

490

Lastpage

491

Abstract

We present our first results in the realization of a laser diodes based telemeter. We aim at developing an air index compensated distance meter taking advantage of the dependence of the chromatic dispersion of the refractive index with air temperature. This will be realized by two simultaneous distance measurements at two different wavelengths: each measurement is based on the measurement of the phase accumulated by a radio wave propagated in air by an intensity modulated laser beam.

Keywords

aberrations; intensity modulation; laser ranging; optical dispersion; phase measurement; radiowave propagation; refractive index; semiconductor lasers; telemetry; absolute distance meter; air index compensated distance meter; air temperature; chromatic dispersion; distance measurement; intensity modulated laser beam; laser diodes based telemeter; phase measurement; radio wave propagation; refractive index; Measurement by laser beam; Optical modulation; Optical reflection; Optical variables measurement; Phase measurement; Temperature measurement; Wavelength measurement; absolute distance meter; metrology; optical system; phase measurement; telemetry;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on

Conference_Location

Rio de Janeiro

ISSN

0589-1485

Print_ISBN

978-1-4799-5205-2

Type

conf

DOI

10.1109/CPEM.2014.6898473

Filename

6898473