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Some Experimental Factors Affecting the Reproducibility and Stability of Methane-Stabilized Helium-Neon Lasers

  • B. W. Jolliffe
  • W. R. C. Rowley
  • K. C. Shotton
  • P. T. Woods

Abstract

The frequency of the methane-stabilized helium-neon laser was first measured by Evenson et al (1). In June 1973, their result was combined by the Comité Consultatif pour la Définition du Mètre (2,3), with the results of four independent measurements of its wavelength, to give a recommended value for the speed of light (c = 299 792 458 ms−1) with an uncertainty of 4 parts in 109.

Keywords

Beat Frequency National Physical Laboratory Frequency Offset Methane Pressure Laser Stability 
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References

  1. 1.
    EVENSON, K.M., et al, Appl. Phys. Lett., 22, 192, (1973).ADSCrossRefGoogle Scholar
  2. 2.
    TERRIEN, J., Nouv. Rev. Optique, 4, 215, (1973).ADSCrossRefGoogle Scholar
  3. 3.
    Com. Consult. Définition Mètre, (Com. Int. Poids. Mesures), 5th Session, (1973).Google Scholar
  4. 4.
    BLANEY, T.G., et al, Nature, 254, 584, (1975).ADSCrossRefGoogle Scholar
  5. 5.
    BARNES, J.A., et al, IEEE Trans. Inst. Meas., IM20, 105, (1971).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1976

Authors and Affiliations

  • B. W. Jolliffe
    • 1
  • W. R. C. Rowley
    • 1
  • K. C. Shotton
    • 1
  • P. T. Woods
    • 1
  1. 1.National Physical LaboratoryTeddingtonEngland

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