Advanced digital signal processing techniques based on Stokes space analysis for high-capacity coherent optical systems
| Autor: | Gil M. Fernandes, Antônio Lúcio Teixeira, Somayeh Ziaie, Ali Shahpari, Armando N. Pinto, Ricardo B. Ferreira, Nelson J. Muga |
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| Rok vydání: | 2017 |
| Předmět: |
Signal processing
Computational complexity theory Computer science business.industry Optical communication Optical polarization 02 engineering and technology Transmission system Polarization (waves) Multiplexing 020210 optoelectronics & photonics 0202 electrical engineering electronic engineering information engineering Electronic engineering business Digital signal processing |
| Zdroj: | ICTON |
| DOI: | 10.1109/icton.2017.8024970 |
| Popis: | Stokes space based digital signal processing (DSP) techniques can improve polarization demultiplexing, polarization dependent losses compensation, and other polarization-related tasks in coherent receivers, particularly in terms of convergence speed and transparency to higher-level M-ary modulated signals. This paper reports recent advances on Stokes space based DSP for coherent optical communications. We study and discuss the performance the polarization demultiplexing algorithm in terms of convergence speed and computational complexity, and present a new space-demultiplexing algorithm based on signal analysis in higher-order Poincare spheres for spatial division multiplexing transmission systems. Moreover, practical issues regarding the real-time implementation on FPGAs of Stokes space based algorithms for flexible optical communications are also investigated and discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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