General Relativity and Gravitation

, Volume 40, Issue 5, pp 935–943 | Cite as

Noise processes in large ring lasers

  • K. U. SchreiberEmail author
  • J. -P. R. Wells
  • G. E. Stedman
Research Article


Large ring lasers with a cavity Q well above 1012 are characterized by extremely narrow line-widths and high coherence. At this point, active Sagnac interferometers do not quite reach the quantum limit. In this paper, we will explore the current status of this technology and look at the various noise processes involved with large ring lasers rigidly mounted to the Earth crust.


Ring laser Shot noise Mode competition He-Ne gas laser 


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • K. U. Schreiber
    • 1
    • 2
    Email author
  • J. -P. R. Wells
    • 2
  • G. E. Stedman
    • 2
  1. 1.Technical University of Munich, Forschungseinrichtung Satellitengeodäsie, Fundamentalstation WettzellBad KötztingGermany
  2. 2.Department of Physics and AstronomyUniversity of CanterburyChristchurchNew Zealand

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