Generation of High Purity Photon-Pair in a Short Highly Non-Linear Fiber

Abstract

We generate photon pairs at telecom wavelength through a spontaneous four-wave mixing process in a short 10 m of highly nonlinear fiber. We use a counter propagating scheme to generate a correlated and entangled photon pair. We observe coincidence to accidental-coincidence ratio of 29 + or - 3 at room temperature (300 K) and as high as 130 + or - 5 when the fiber is cooled to liquid-nitrogen temperature (77 K). Two-photon interference with visibility >98% (>92%) and the violation of Bell's inequality by >12 (approx. equal 5) standard deviation are observed at 77 K (300 K), respectively, without subtracting accidental-coincidence count. We obtain a photon-pair production rate about factor 3(2) higher than a 300 m dispersion-shifted fiber at 300 K (77 K).

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2013
Accession Number
ADA589937

Entities

People

  • John Malowicki
  • Kim Fook Lee
  • Masaaki Hirano
  • Yong Meng Sua

Organizations

  • Michigan Technological University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Analyzers
  • Avalanche Photodiodes
  • Demographic Cohorts
  • Detection
  • Detectors
  • Dispersions
  • Efficiency
  • Fibers
  • Governments
  • Inequalities
  • Optical Fibers
  • Optics
  • Standards
  • Visibility
  • Wave Mixing
  • Waveplates

Fields of Study

  • Physics

Readers

  • Nuclear and Radiation Engineering.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.