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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 14 — Jul. 9, 2007
  • pp: 8770–8780

Spontaneous parametric down conversion in a nanophotonic waveguide

Sean M. Spillane, Marco Fiorentino, and Raymond G. Beausoleil  »View Author Affiliations


Optics Express, Vol. 15, Issue 14, pp. 8770-8780 (2007)
http://dx.doi.org/10.1364/OE.15.008770


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Abstract

Recently, we verified that spontaneous parametric down conversion (SPDC) is enhanced in a waveguide, in agreement with theory showing an inverse dependence on mode confinement [1]. Here we investigate highly-confined nanophotonic waveguides designed to maximize the SPDC rate. A theory modified to include highly-confined waveguides is used to calculate the spectral width and pair generation rates in a sample system. Pair generation rates exceeding 109/sec/nm/mW are predicted for periodically-poled KTP (PPKTP) nanophotonic waveguides. This results in an enhancement of the downconverted signal power greater than 45× that of low-index-contrast PPKTP waveguides and greater than 6500× that of bulk PPKTP crystals.

© 2007 Optical Society of America

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.4390) Nonlinear optics : Nonlinear optics, integrated optics
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes

ToC Category:
Nonlinear Optics

History
Original Manuscript: April 24, 2007
Revised Manuscript: June 26, 2007
Manuscript Accepted: June 27, 2007
Published: June 28, 2007

Citation
Sean M. Spillane, Marco Fiorentino, and Raymond G. Beausoleil, "Spontaneous parametric down conversion in a nanophotonic waveguide," Opt. Express 15, 8770-8780 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-14-8770


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References

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