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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 9 — May. 6, 2013
  • pp: 10659–10666

Widely tunable single photon source with high purity at telecom wavelength

Rui-Bo Jin, Ryosuke Shimizu, Kentaro Wakui, Hugo Benichi, and Masahide Sasaki  »View Author Affiliations


Optics Express, Vol. 21, Issue 9, pp. 10659-10666 (2013)
http://dx.doi.org/10.1364/OE.21.010659


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Abstract

We theoretically and experimentally investigate the spectral tunability and purity of photon pairs generated from spontaneous parametric down conversion in periodically poled KTiOPO4 crystal with group-velocity matching condition. The numerical simulation predicts that the spectral purity can be kept higher than 0.81 when the wavelength is tuned from 1460 nm to 1675 nm, which covers the S-, C-, L-, and U-band in telecommunication wavelengths. We also experimentally measured the joint spectral intensity at 1565 nm, 1584 nm and 1565 nm, yielding Schmidt numbers of 1.01, 1.02 and 1.04, respectively. Such a photon source is useful for quantum information and communication systems.

© 2013 OSA

OCIS Codes
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(270.0270) Quantum optics : Quantum optics
(270.5565) Quantum optics : Quantum communications
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

History
Original Manuscript: April 12, 2013
Manuscript Accepted: April 12, 2013
Published: April 24, 2013

Virtual Issues
Vol. 8, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Rui-Bo Jin, Ryosuke Shimizu, Kentaro Wakui, Hugo Benichi, and Masahide Sasaki, "Widely tunable single photon source with high purity at telecom wavelength," Opt. Express 21, 10659-10666 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-9-10659


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