30 April 2012 Effects of fiber impairments on constellation diagrams of optical phase modulated signals
Vahid R. Arbab, Poorya Saghari
Author Affiliations +
Abstract
The effects of chromatic dispersion (CD) and first order polarization mode dispersion (PMD) on constellation diagrams of phase modulated signals are investigated via simulation and different methods to visualize these effects are presented. It is shown that constellation diagrams of (D)QPSK signals sampled by an asynchronous receiver can be used to simultaneously monitor CD and first order PMD. The amount of accumulated impairments can be estimated by quantifying certain deformations in patterns of constellation diagrams.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2012/$25.00 © 2012 SPIE
Vahid R. Arbab and Poorya Saghari "Effects of fiber impairments on constellation diagrams of optical phase modulated signals," Optical Engineering 51(4), 045008 (30 April 2012). https://doi.org/10.1117/1.OE.51.4.045008
Published: 30 April 2012
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KEYWORDS
Modulation

Eye

Continuous wave operation

Dispersion

Optical engineering

Polarization

Transient nonlinear optics

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