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Near-perfect sorting of orbital angular momentum and angular position states of light

O’Sullivan, Malcolm N. and Mirhosseini, Mohammad and Malik, Mehul and Boyd, Robert W. (2012) Near-perfect sorting of orbital angular momentum and angular position states of light. Optics Express, 20 (22). pp. 24444-24449. ISSN 1094-4087. https://resolver.caltech.edu/CaltechAUTHORS:20190716-093627981

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Abstract

We present a novel method for efficient sorting of photons prepared in states of orbital angular momentum (OAM) and angular position (ANG). A log-polar optical transform is used in combination with a holographic beam-splitting method to achieve better mode discrimination and reduced cross-talk than reported previously. Simulating this method for 7 modes, we have calculated an improved mutual information of 2.43 bits/photon and 2.29 bits/photon for OAM and ANG modes respectively. In addition, we present preliminary results from an experimental implementation of this technique. This method is expected to have important applications for high-dimensional quantum key distribution systems.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1364/oe.20.024444DOIArticle
https://arxiv.org/abs/1208.2891arXivDiscussion Paper
ORCID:
AuthorORCID
Boyd, Robert W.0000-0002-1234-2265
Additional Information:© 2012 Optical Society of America. Received 14 Aug 2012; revised 27 Sep 2012; accepted 27 Sep 2012; published 11 Oct 2012. This work was supported by the DARPA InPho program and the Canadian Excellence Research Chair (CERC) program.
Funders:
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Canada Research Chairs ProgramUNSPECIFIED
Issue or Number:22
Classification Code:OCIS codes: (200.2605) Free-space optical communication; (050.4865) Optical vortices; (060.5565) Quantum communications
Record Number:CaltechAUTHORS:20190716-093627981
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190716-093627981
Official Citation:Malcolm N. O’Sullivan, Mohammad Mirhosseini, Mehul Malik, and Robert W. Boyd, "Near-perfect sorting of orbital angular momentum and angular position states of light," Opt. Express 20, 24444-24449 (2012)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97165
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:16 Jul 2019 16:40
Last Modified:03 Oct 2019 21:28

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