Reducing multi-photon rates in pulsed down-conversion by temporal multiplexing

M. A. Broome, M. P. Almeida, A. Fedrizzi, Andrew G. White

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

We present a simple technique to reduce the emission rate of higher-order photon events from pulsed spontaneous parametric down-conversion. The technique uses extra-cavity control over a mode locked ultrafast laser to simultaneously increase repetition rate and reduce the energy of each pulse from the pump beam. We apply our scheme to a photonic quantum gate, showing improvements in the non-classical interference visibility for 2-photon and 4-photon experiments, and in the quantum-gate fidelity and entangled state production in the 2-photon case. (C) 2011 Optical Society of America

Original languageEnglish
Pages (from-to)22698-22708
Number of pages11
JournalOptics Express
Volume19
Issue number23
DOIs
Publication statusPublished - 7 Nov 2011

Keywords

  • SINGLE-PHOTON SOURCE
  • ROOM-TEMPERATURE
  • QUANTUM-DOT

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