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.
Accurate sensitivity in optically preamplified direct-detection
MARTELLI, PAOLO;MARTINELLI, MARIO
2004-01-01
Abstract
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.File in questo prodotto:
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