Title :
Sensitivity of a direct WDM-system with a frequency selective optical receiver and optical preamplifier
Author :
Herbst, S. ; Meissner, P. ; Baussmann, M. ; Erbacsh, M.
Author_Institution :
Tech. Hochschule Darmstadt, Germany
fDate :
1/1/1998 12:00:00 AM
Abstract :
We present an accurate model for the evaluation of the performance of a direct detection system with frequency selective Fabry-Perot (FP) filter and optical preamplification. The model includes the Poisson statistics of photodetection, a realistic model of the polarization behavior of the amplified spontaneous emission and the degradation of the system due to intersymbol interference (ISI). The influence of filtered white noise is taken into account by the expansion in a set of orthonormal functions. We discuss the implementation of a polarization filter for the rigorous model as well as the optimum bandwidth-bit duration (BT) product. The results confirm that the optimum bandwidth-bit duration product has a value of 6 for the discussed system
Keywords :
Poisson distribution; intersymbol interference; optical fibre communication; optical filters; optical noise; optical receivers; photodetectors; sensitivity; statistical analysis; wavelength division multiplexing; white noise; Poisson statistics; accurate model; amplified spontaneous emission; direct WDM-system; direct detection system; filtered white noise; frequency selective Fabry-Perot filter; frequency selective optical receiver; intersymbol interference; optical preamplification; optical preamplifier; optimum bandwidth-bit duration product; orthonormal functions; photodetection; polarization behavior; polarization filter; rigorous model; sensitivity; Fabry-Perot; Frequency; Intersymbol interference; Optical filters; Optical noise; Optical polarization; Optical sensors; Spontaneous emission; Statistics; Stimulated emission;
Journal_Title :
Lightwave Technology, Journal of
