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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 35, Iss. 6 — Mar. 15, 2010
  • pp: 802–804

Fiber-based telecommunication-band source of degenerate entangled photons

Milja Medic, Joseph B. Altepeter, Matthew A. Hall, Monika Patel, and Prem Kumar  »View Author Affiliations


Optics Letters, Vol. 35, Issue 6, pp. 802-804 (2010)
http://dx.doi.org/10.1364/OL.35.000802


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Abstract

We have constructed and experimentally characterized what we believe to be the first fiber-based source of degenerate polarization-entangled photon pairs in the telecommunication band. Our source design utilizes bichromatic pump pulses and an optical-fiber Sagnac loop aligned to deterministically separate degenerate photon pairs at a central wavelength. The source exhibits 0.997 ± 0.006 fidelity with a maximally entangled state, measured using quantum state tomography. When reconfigured to produce identical photon pairs, the source exhibits a Hong–Ou–Mandel interference visibility of 0.97 ± 0.04 .

© 2010 Optical Society of America

OCIS Codes
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(270.5565) Quantum optics : Quantum communications
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

History
Original Manuscript: November 16, 2009
Revised Manuscript: January 15, 2010
Manuscript Accepted: January 29, 2010
Published: March 4, 2010

Citation
Milja Medic, Joseph B. Altepeter, Matthew A. Hall, Monika Patel, and Prem Kumar, "Fiber-based telecommunication-band source of degenerate entangled photons," Opt. Lett. 35, 802-804 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-6-802


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