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Squeezed-light enhanced polarization interferometer

  • P. Grangier
  • , R. E. Slusher
  • , B. Yurke
  • , A. LaPorta
  • Nokia

Research output: Contribution to journalArticlepeer-review

462 Scopus citations

Abstract

Enhancement of the sensitivity of a polarization interferometer beyond the limit set by vacuum fluctuations of the electromagnetic field has been obtained with use of squeezed light generated by a KTiOPO4 optical parametric amplifier. The increase in signal-to-noise ratio relative to the shot-noise limit is 2 dB. The corresponding improvement in the response time of the interferometer is measured to be a factor of 1.6.

Original languageEnglish
Pages (from-to)2153-2156
Number of pages4
JournalPhysical Review Letters
Volume59
Issue number19
DOIs
StatePublished - 1987

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