On high-efficiency optical communication and key distribution

Yuval Kochman*, Gregory W. Wornell

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

20 Scopus citations

Abstract

We investigate modulation and coding techniques that approach the fundamental limits of communication and key distribution over optical channels, in the regime of simultaneously high photon and bandwidth efficiencies. First, we develop a simple and robust system design for free-space optical communication that incorporates pulse-position modulation (PPM) over multiple spatial degrees of freedom in order to achieve high photon and spectral efficiency. Further, in the context of key distribution, we determine the optimal rate using a Poisson source of entangled photon pairs and photon detectors, and show how to approach it using PPM parsing of the detected photon stream.

Original languageAmerican English
Title of host publication2012 Information Theory and Applications Workshop, ITA 2012 - Conference Proceedings
Pages172-179
Number of pages8
DOIs
StatePublished - 2012
Externally publishedYes
Event2012 Information Theory and Applications Workshop, ITA 2012 - San Diego, CA, United States
Duration: 5 Feb 201210 Feb 2012

Publication series

Name2012 Information Theory and Applications Workshop, ITA 2012 - Conference Proceedings

Conference

Conference2012 Information Theory and Applications Workshop, ITA 2012
Country/TerritoryUnited States
CitySan Diego, CA
Period5/02/1210/02/12

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