Adaptive 3-D Stokes Space-Based Polarization Demultiplexing Algorithm

作者：Muga Nelson J^*; Pinto Armando Nolasco

来源：Journal of Lightwave Technology, 2014, 32(19): 3290-3298.

DOI：10.1109/JLT.2014.2340732

• Coherent detection
• digital signal processing
• fiber-optic communications
• polarization demultiplexing
• polarization-dependent losses

We propose a novel polarization demultiplexing technique for complex modulated signals using the Stokes space polarization representation of the signal samples. Polarization demultiplexing of an endless time-varying SOP signal is achieved through the adaptive estimation of the inverse rotation matrix, without the calculation of a best fitting plane. Simulation results show the effectiveness of the proposed technique, with a high convergence speed, and a good response to time-varying SOP rotations. The performance of the method is assessed through EVM calculations for frequency rotations up to 15 mu rad/symbol, showing a maximum penalty of 1 dB. Moreover, the technique can incorporate an additional stage for PDL compensation without penalties in terms of EVM results and algorithm complexity.

• 出版日期2014-10-1