Accurate sensitivity in optically preamplified direct detection

We present a novel model for calculating the bit error rate in optical communication systems in the case of on-off keying intensity modulation and optically preamplified direct detection. The model accounts for the intersymbol interference and is based on the Laguerre photon-count probability distri...

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Bibliographic Details
Published inOptics letters Vol. 29; no. 13; p. 1473
Main Authors Martelli, Paolo, Pietralunga, Silvia M, Nicodemi, Dario, Martinelli, Mario
Format Journal Article
LanguageEnglish
Published United States 01.07.2004
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Summary:We present a novel model for calculating the bit error rate in optical communication systems in the case of on-off keying intensity modulation and optically preamplified direct detection. The model accounts for the intersymbol interference and is based on the Laguerre photon-count probability distribution predicted by photodetection theory. For a non-return-to-zero modulation format an accurate value of the sensitivity for a quantum-limited receiver of 33.9 photons/bit is obtained.
ISSN:0146-9592
DOI:10.1364/OL.29.001473