Abstract
In electronic digital signal processing based optical communication systems, digital equalization for chromatic dispersion interacts with local oscillator phase noise to produce equalization-enhanced phase noise (EEPN). In addition to both phase and intensity noises, EEPN also induces timing jitter to the equalized signal. For a quadrature-phase-shift keying signal with laser linewidth of , the timing jitter is up to 20% of the symbol interval for a transmission distance of .
© 2011 Optical Society of America
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