Title :
Experimental Assessment of the Adaptive Stokes Space-Based Polarization Demultiplexing for Optical Metro and Access Networks
Author :
Ziaie, Somayeh ; Muga, Nelson J. ; Guiomar, Fernando P. ; Fernandes, Gil M. ; Ferreira, Ricardo M. ; Shahpari, Ali ; Teixeira, Antonio L. ; Pinto, Armando N.
Author_Institution :
Dept. of Electron., Telecommun., & Inf., Univ. of Aveiro, Aveiro, Portugal
Abstract :
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.
Keywords :
adaptive optics; demultiplexing; error statistics; optical fibre dispersion; optical fibre polarisation; optical fibre subscriber loops; optical modulation; quadrature amplitude modulation; quadrature phase shift keying; wavelength division multiplexing; BER; Stokes PolDemux; adaptive Stokes space-based polarization demultiplexing; chromatic dispersion; convergence speed; dual polarization 16QAM modulation formats; dual polarization QPSK modulation formats; optical access networks; optical metro networks; polarization rotation; polarization-mode dispersion; power penalty; signal polarization state; standard single-mode fiber; ultradense wavelength-division multiplexing scenario; Adaptive optics; Convergence; Digital signal processing; Modulation; Optical polarization; Optical receivers; Optical transmitters; Coherent detection; DP-16QAM; DP-QPSK; Stokes space; polarization demultiplexing; stokes space; ultra-dense wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2015.2492541
