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Bright, single-spatial-mode source of frequency non-degenerate, polarization-entangled photon pairs using periodically poled KTP

  • Matthew Pelton
  • , Philip Marsden
  • , Daniel Ljunggren
  • , Maria Tengner
  • , Anders Karlsson
  • , Anna Fragemann
  • , Carlota Canalias
  • , Fredrik Laurell

Research output: Contribution to journalArticlepeer-review

Abstract

We use two perpendicular crystals of periodically-poled KTP to directly generate polarization-entangled photon pairs, the majority of which are emitted into a single Gaussian spatial mode. The signal and idler photons have wavelengths of 810 nm and 1550 nm, respectively, and the photon-pair generation rate is 1.2 × 107 sec-1 for a pump power of 62 mW. The apparatus is compact, flexible, and easily to use.

Original languageEnglish
Pages (from-to)3573-3580
Number of pages8
JournalOptics Express
Volume12
Issue number15
DOIs
StatePublished - Jul 2004
Externally publishedYes

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