Quantum noise protected data encryption in a WDM network

Chuang Liang*, Gregory S. Kanter, Eric Corndorf, Prem Kumar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


We demonstrate fully streaming optical data encryption over a 250-km-long fiber-optic wavelength-division-multiplexing (WDM) line at OC-12 data rate. Our scheme, based on the fundamental and irreducible quantum noise of laser light, allows for optical amplification and is shown to be compatible with today's high-speed WDM telecommunications infrastructure.

Original languageEnglish (US)
Pages (from-to)1573-1575
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number7
StatePublished - Jul 2005


  • Data encryption
  • Quantum cryptography

ASJC Scopus subject areas

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


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