Optical Performance Monitoring in Digital Coherent Receivers

In this paper, we present a method for combined fiber parameter estimation from digital filter coefficients of a polarization diverse coherent receiver. All deterministic linear optical channel parameters like residual chromatic dispersion (CD), polarization-mode dispersion (PMD), and polarization-d...

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Bibliographic Details
Published in:Journal of lightwave technology 2009-08, Vol.27 (16), p.3623-3631
Main Authors: Hauske, F.N., Kuschnerov, M., Spinnler, B., Lankl, B.
Format: Article
Language:English
Subjects:
Adaptive optics
Channels
Chromatic dispersion
Chromatic dispersion (CD)
Coherence
Compact disks
digital coherent receiver
Digital filters
Fibers
Impulse response
Mathematical models
Monitoring
Optical fiber polarization
Optical filters
Optical losses
optical performance monitoring (OPM)
Optical receivers
Parameter estimation
Polarization mode dispersion
polarization-dependent loss (PDL)
polarization-mode dispersion (PMD)
Receivers
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Summary:In this paper, we present a method for combined fiber parameter estimation from digital filter coefficients of a polarization diverse coherent receiver. All deterministic linear optical channel parameters like residual chromatic dispersion (CD), polarization-mode dispersion (PMD), and polarization-dependent loss (PDL) are continuously monitored by analysis of the filter impulse response of the adaptive equalizer. After deriving the according equations from the theoretical linear fiber channel model, we demonstrate robust estimation for a joint combination of all impairments.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2009.2024960