Title :
Optimization of DSP-based Nyquist-WDM PM-16QAM transmitter
Author :
Curri, Vittorio ; Carena, Andrea ; Bosco, Gabriella ; Poggiolini, Pierluigi ; Forghieri, Fabrizio
Author_Institution :
DET, Turin, Italy
Abstract :
Generation of PM-16QAM Nyquist-WDM signals in the digital domain is analyzed, by optimizing DSP and DAC parameters at different channel spacings. We show that ArcSin operation performed in DSP for compensating MZM non-linearity gives limited OSNR advantages and increases DSP complexity, but may give up to 3 dB gain in terms of launch power.
Keywords :
optical information processing; optical transmitters; quadrature amplitude modulation; telecommunication channels; wavelength division multiplexing; ArcSin operation; DAC parameters; DSP complexity; DSP parameters; DSP-based Nyquist-WDM PM-16QAM transmitter; MZM nonlinearity; OSNR; PM-16QAM Nyquist-WDM signals; channel spacings; digital domain;
Conference_Titel :
Optical Communications (ECOC), 2012 38th European Conference and Exhibition on
Conference_Location :
Amsterdam
