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Phase-Sensitive Light Amplifiers in Stellar Interferometry

  • Hideya Gamo
Conference paper

Abstract

The signal-to-noise ratio problems in stellar interferometry are serious in a manner somewhat similar to the case of gravitational wave detection. For instance, Hanbury Brown determined the diameters of 32 stars by his intensity interferometer [1]. Without some new technology development such as the squeezed state technique, there is not much chance for further improvement. As soon as the laser amplifier became available, I was interested in its possible applications to improve the sensitivity of the intensity interferometer. To my great disappointment I learned from Professor Charles Townes [2] that the (phase-insensitive) laser amplifier cannot improve the S/N but worsens the situation due to the excessive spontaneous emissions.

Keywords

Quadrature Component Gravitational Wave Detection Parametric Amplifier Laser Amplifier Incident Light Wave 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • Hideya Gamo
    • 1
  1. 1.Department of Electrical EngineeringUniversity of California, IrvineIrvineUSA

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