Preamplified photodetectors for high-fidelity postselecting optical devices

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The fidelity of postselecting devices based on direct photon number detection can be significantly improved by insertion of a phase-insensitive optical amplifier in front of the detector. The scheme is simple, and the cost to the probability of obtaining the appropriate detector outcome is low.
Original languageEnglish
Pages (from-to)012335/1-12335/5
Number of pages5
JournalPhysical Review A
Issue number1
Publication statusPublished - 29 Jan 2007


  • photons
  • physics
  • optics
  • photodetectors
  • optical devices

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