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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 14, Iss. 10 — Oct. 1, 1997
  • pp: 2424–2429

Shot-noise formula for time-varying photon rates: a general derivation

Peter J. Winzer  »View Author Affiliations


JOSA B, Vol. 14, Issue 10, pp. 2424-2429 (1997)
http://dx.doi.org/10.1364/JOSAB.14.002424


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Abstract

An expression describing the variance of shot noise is derived for deterministic, time-varying photon rates on a semiclassical basis. This is done both forthe case with and without postprocessing in the electrical regime. It is shownhow the results are related to the traditional shot-noise formula and underwhich (restricted) conditions the well-known formula may be applied. This becomes significant when signal-to-noise ratios have to be calculated. An example related to optical heterodyning demonstrates similarities and differences between the traditional formula and the new results.

© 1997 Optical Society of America

Citation
Peter J. Winzer, "Shot-noise formula for time-varying photon rates: a general derivation," J. Opt. Soc. Am. B 14, 2424-2429 (1997)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-14-10-2424

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