Title :
Impact of nonlinear phase noise to DPSK signals: a comparison of different models
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
5/1/2004 12:00:00 AM
Abstract :
When a differential phase-shift keying signal is contaminated by nonlinear phase noise, various models to evaluate the error probability are compared. The simplest method is based on the Q factor. The exact method takes into account the dependence between amplifier noise and nonlinear phase noise. All approximated models underestimate both the error probability and the required signal-to-noise ratio.
Keywords :
Q-factor; differential phase shift keying; error statistics; optical Kerr effect; optical fibre communication; phase noise; DPSK signals; Q factor; amplifier noise; differential phase-shift keying; error probability; nonlinear phase noise; Differential quadrature phase shift keying; Error probability; Gaussian approximation; Gaussian noise; Laser modes; Laser noise; Optical amplifiers; Phase noise; Phase shift keying; Signal to noise ratio;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.826054
