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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 18 — Aug. 31, 2009
  • pp: 15799–15807

Non-degenerated sequential time-bin entanglement generation using periodically poled KTP waveguide

Lijun Ma, Oliver Slattery, Tiejun Chang, and Xiao Tang  »View Author Affiliations


Optics Express, Vol. 17, Issue 18, pp. 15799-15807 (2009)
http://dx.doi.org/10.1364/OE.17.015799


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Abstract

We have experimentally implemented a non-degenerate sequential time-bin entangled photon-pair source using a periodically poled potassium titanyl phosphate waveguide at a clock rate of 1 GHz. The wavelengths of the signal and idler are 895 nm and 1310 nm, which are suitable for local and long distance optical communications, respectively and the 895 nm signal is also suitable for quantum memory research. A silicon avalanche photodiode is used to detect the photons at 895 nm while a periodically poled lithium niobate waveguide based up-conversion detector is used to detect the photons at 1310 nm. The measured entangled-photon-pair flux rate is 650 Hz and the fringe visibility for two-photon interference is 79.4% without noise subtraction.

© 2009 OSA

OCIS Codes
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(270.5565) Quantum optics : Quantum communications

ToC Category:
Quantum Optics

History
Original Manuscript: May 29, 2009
Revised Manuscript: July 8, 2009
Manuscript Accepted: August 13, 2009
Published: August 21, 2009

Citation
Lijun Ma, Oliver Slattery, Tiejun Chang, and Xiao Tang, "Non-degenerated sequential time-bin entanglement generation using periodically poled KTP waveguide," Opt. Express 17, 15799-15807 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-18-15799


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