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Limits on achievable dimensional and photon efficiencies with intensity-modulation and photon-counting due to non-ideal photon-counter behavior

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dc.contributor.author Moision, Bruce
dc.contributor.author Erkmen, Baris I.
dc.contributor.author Farr, William
dc.contributor.author Dolinar, Samuel J.
dc.contributor.author Birnbaum, Kevin M.
dc.date.accessioned 2012-12-20T22:01:24Z
dc.date.available 2012-12-20T22:01:24Z
dc.date.issued 2012-01-24
dc.identifier.citation SPIE Photonics West, San Francisco, California, January 21-26, 2012 en_US
dc.identifier.clearanceno 12-0653
dc.identifier.uri http://hdl.handle.net/2014/42567
dc.description.abstract An ideal intensity-modulated photon-counting channel can achieve unbounded photon information efficiencies (PIEs). However, a number of limitations of a physical system limit the practically achievable PIE. In this paper, we discuss several of these limitations and illustrate their impact on the channel. We show that, for the Poisson channel, noise does not strictly bound PIE, although there is an effective limit, as the dimensional information efficiency goes as e¯ᵉᴾᴵᴱ beyond a threshold PIE. Since the Holevo limit is bounded in the presence of noise, this illustrates that the Poisson approximation is invalid at large PIE for any number of noise modes. We show that a nite transmitter extinction ratio bounds the achievable PIE to a maximum that is logarithmic in the extinction ratio. We show how detector jitter limits the ability to mitigate noise in the PPM signaling framework. We illustrate a method to model detector blocking when the number of detectors is large, and illustrate mitigation of blocking with spatial spreading and altering. Finally, we illustrate the design of a high photon efficiency system using state-of-the-art photo-detectors and taking all these effects into account. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012. en_US
dc.subject optical communications en_US
dc.subject quantum limited communications en_US
dc.subject photon counting detection en_US
dc.subject photon information effieciency en_US
dc.title Limits on achievable dimensional and photon efficiencies with intensity-modulation and photon-counting due to non-ideal photon-counter behavior en_US
dc.type Preprint en_US
dc.subject.NASATaxonomy Communications and Radar en_US


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