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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 23 — Nov. 18, 2013
  • pp: 28794–28800

Mode multiplexed single-photon and classical channels in a few-mode fiber

Joel Carpenter, Chunle Xiong, Matthew J. Collins, Juntao Li, Thomas F. Krauss, Benjamin J. Eggleton, Alex S. Clark, and Jochen Schröder  »View Author Affiliations


Optics Express, Vol. 21, Issue 23, pp. 28794-28800 (2013)
http://dx.doi.org/10.1364/OE.21.028794


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Abstract

We classically measure the entire propagation matrix of a few-mode fiber and use a spatial light modulator to undo modal mixing and recover single-photons launched onto each of the eigenmodes of the fiber at one end, but arriving as mixed modal superpositions at the other. We exploit the orthogonality of these modal channels to improve the isolation between a quantum and classical channel launched onto different spatial and polarization modes at different wavelengths. The spatial diversity of the channels provides an additional 35dB of isolation in addition to that provided by polarization and wavelength.

© 2013 Optical Society of America

OCIS Codes
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(270.0270) Quantum optics : Quantum optics
(270.5565) Quantum optics : Quantum communications

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: September 17, 2013
Revised Manuscript: October 28, 2013
Manuscript Accepted: October 28, 2013
Published: November 15, 2013

Virtual Issues
Nonlinear Optics (2013) Optics Express

Citation
Joel Carpenter, Chunle Xiong, Matthew J. Collins, Juntao Li, Thomas F. Krauss, Benjamin J. Eggleton, Alex S. Clark, and Jochen Schröder, "Mode multiplexed single-photon and classical channels in a few-mode fiber," Opt. Express 21, 28794-28800 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-23-28794


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