Effect of Nonlinear Phase Noise on Phase-Shift Keying Signals in Lightwave Systems and Its Experimental Verification
Date Issued
2005
Date
2005
Author(s)
Huang, Jen-An
DOI
en-US
Abstract
Both discrete and distributed models of the self-phase modulation (SPM) induced nonlinear
phase noise are derived. The joint characteristic function of the received electric field
and the nonlinear phase noise is provided for both discrete and distributed models. Both
approximated and exact probability density function for BPSK and DPSK systems are
given by an analytical expression. The exact model includes the dependence between the
nonlinear phase noise and the phase of amplifier noise, and the approximated model assumes
the independence between nonlinear phase noise and the phase of amplifier noise. Both
exact and approximated error probabilities for BPSK and DPSK systems are evaluated
in both discrete and distributed models, and compared with each other. A single-span
experimental setup, the minimal setup to study the nonlinear phase noise, is proposed to
verify the theoretical model of SPM-induced nonlinear phase noise by the measurement of
signal-to-noise ratio (SNR) penalty. The experimental results show that the SNR penalty
from the simplified matched-filter based analysis is applicable to more general receivers.The discrepancy between the results of the experiment and the theory is within ±0.15 dB.
Subjects
光纖通訊
非線性相位雜訊
實驗
差分相位調變
optical fiber communication
nonlinear phase noise
experiment
DPSK
Type
thesis
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