Correlated photon-pair source for secured C-band quantum communications

Jae Ho Han, Jin U. Kang

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We have experimentally investigated and shown evidence of correlated photon-pair generation based on coupled intracavity four-wave mixing (FWM) in a dual-wavelength erbium-doped fiber ring laser operating in the fiber-optic communication C-band regime. In the coupled FWM process, the pump photons are both involved in the absorption and stimulated emission, which generate signal and idler wavelengths simultaneously. The correlation experiment was performed with various photon count levels in the order of hundreds of photons/s at each channel. The photon number of channel was less than 0.1/pulse and the maximum coincidence to single counts ratio was approximately 12% with a Gaussian profile in the accumulated counts.

Original languageEnglish
Article number5779699
Pages (from-to)1178-1180
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number16
Publication statusPublished - 2011


  • Communication system security
  • correlation
  • optical communication
  • optical fiber lasers
  • radiation detectors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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