Experimental Assessment of the Adaptive Stokes Space-Based Polarization Demultiplexing for Optical Metro and Access Networks

We experimentally analyze an adaptive polarization-demultiplexing (PolDemux) technique based on the representation of the state of polarization of the signal in the Stokes space. The performance and convergence speed of the Stokes PolDemux are compared with the constant modulus algorithm, for dual p...

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Bibliographic Details
Published in:Journal of lightwave technology 2015-12, Vol.33 (23), p.4968-4974
Main Authors: Ziaie, Somayeh, Muga, Nelson J., Guiomar, Fernando P., Fernandes, Gil M., Ferreira, Ricardo M., Shahpari, Ali, Teixeira, Antonio L., Pinto, Armando N.
Format: Article
Language:English
Subjects:
Adaptive optics
Coherent detection
Convergence
Digital signal processing
DP-16QAM
DP-QPSK
Modulation
Optical polarization
Optical receivers
Optical transmitters
polarization demultiplexing
Stokes space
ultra-dense wavelength division multiplexing
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Summary:We experimentally analyze an adaptive polarization-demultiplexing (PolDemux) technique based on the representation of the state of polarization of the signal in the Stokes space. The performance and convergence speed of the Stokes PolDemux are compared with the constant modulus algorithm, for dual polarization QPSK and 16QAM modulation formats in a system with a maximum polarization rotation of 6 kHz. Moreover, the applicability of the adaptive Stokes algorithm is tested in an ultradense wavelength-division multiplexing scenario over 80 km of standard single-mode fiber. The BER results show a very small power penalty confirming the suitability of the adaptive Stokes method in systems where the accumulated chromatic and polarization-mode dispersion are small, such as high capacity optical metro and access networks scenarios.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2015.2492541