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Proceedings Paper

Intercomparison of the 127I2 stabilized He-Ne lasers at 633-nm wavelength of the IFA-IFTAR and the BIPM
Author(s): Gheorghe Popescu; Jean-Marie Chartier; Anick Chartier; Alain Zarka
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Paper Abstract

Results from an international comparison of 127I2 He-Ne stabilized lasers at 633 nm wavelength of the Institute of Atomic Physics-IFTAR, Department of Lasers (IFA-IFTAR), participating with the laser R0.1 and of the Bureau International des Poids et Mesures (BIPM), participating with the laser BIPM7 are reported. The frequency difference determined from the last three measurements resulted as (Delta) (nu) equals (nu) BIPM7 - (nu) R0.1 equals (38.2 +/- 1.3) kHz. Parameters which affected the reproducibility of the frequency for the lasers such as modulation width, iodine pressure (temperature) and laser intracavity power were also investigated. The frequency stability, expressed as the relative Allan variance, was measured for sampling times in the interval from 1 s to 1000 s and its value for a sampling time of 100 s resulted as 3.25 X 10-12.

Paper Details

Date Published: 8 March 1995
PDF: 5 pages
Proc. SPIE 2461, ROMOPTO '94: Fourth Conference in Optics, (8 March 1995); doi: 10.1117/12.203473
Show Author Affiliations
Gheorghe Popescu, Institute of Atomic Physics (Romania)
Jean-Marie Chartier, Bureau International des Poids et Mesures (France)
Anick Chartier, Bureau International des Poids et Mesures (France)
Alain Zarka, Bureau International des Poids et Mesures (France)


Published in SPIE Proceedings Vol. 2461:
ROMOPTO '94: Fourth Conference in Optics
Valentin I. Vlad, Editor(s)

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