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Photonic excess noise and wave localization

C. W. J. Beenakker·M. Patra·P. W. Brouwer
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Abstract

This is a theory for the effect of localization on the super-Poissonian noise of radiation propagating through an absorbing disordered waveguide. Localization suppresses both the mean photon current I and the noise power P, but the Fano factor P/I is found to remain unaffected. For strong absorption the Fano factor has the universal value 1+3f/2 (with f the Bose-Einstein function), regardless of whether the waveguide is long or short compared to the localization length.

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C. W. J. Beenakker, M. Patra, P. W. Brouwer. 2000-01-12. Photonic excess noise and wave localization. https://doi.org/10.1103/physreva.61.051801

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