Fiber-Optic Quantum Information Technologies

Prem Kumar*, Jun Chen, Paul L. Voss, Xiaoying Li, Kim Fook Lee, Jay E. Sharping

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Scopus citations


This chapter focuses on the generation of correlated and entangled photons in a telecom band using Kerr nonlinearity in dispersion-shifted fiber. Tailorable dispersion properties in microstructure fibers have allowed phase matching and entanglement to be obtained over a wide range of wavelengths. Two important features of QM are the superposition principle and the ensuing quantum entanglement. The former allows a quantum mechanical system to be in any state spanned by the basis vectors of its Hilbert space. Microstructure or holey fibers (MFs) allow phase matching to be obtained over a wide range of wavelengths because of their tailorable dispersion properties. Generation of correlated and entangled photons in MFs is demonstrated. Fiber nonlinearity as a source for correlated photons, quantum theory of four-wave mixing in optical fiber, fiber nonlinearity as a source for entangled photons, and high-fidelity entanglement with cooled fiber and degenerate photon pairs for quantum logic in the telecom band are also discussed.

Original languageEnglish (US)
Title of host publicationOptical Fiber Telecommunications V1A
PublisherElsevier Inc
Number of pages52
ISBN (Print)9780123741714
StatePublished - Dec 1 2008

ASJC Scopus subject areas

  • Engineering(all)

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