Clock and carrier recovery in high-speed coherent optical communication systems

Sofia B. Amado; Ricardo Ferreira; Pedro S. Costa; Fernando P. Guiomar; Somayeh Ziaie; António L. Teixeira; Nelson J. Muga; Armando N. Pinto

doi:10.1117/12.2063761

22 August 2014 Clock and carrier recovery in high-speed coherent optical communication systems

Sofia B. Amado, Ricardo Ferreira, Pedro S. Costa, Fernando P. Guiomar, Somayeh Ziaie, António L. Teixeira, Nelson J. Muga, Armando N. Pinto

Author Affiliations +

Proceedings Volume 9286, Second International Conference on Applications of Optics and Photonics; 92864M (2014) https://doi.org/10.1117/12.2063761
Event: Second International Conference on Applications of Optics and Photonics, 2014, Aveiro, Portugal

Abstract

In this paper, the implementations of clock and carrier recovery in digital domain are analyzed. Hardware implementation details, resources estimation and real-time results are presented. Analog-to-Digital Converters (ADC), operating at 1.25Gsa/s, and a Virtex-6 Field-Programmable Gate Array (FPGA), have been used, allowing the implementation of a real-time Quadrature Phase Shift Keying (QPSK) system operating at 1.25Gb/s. The real-time mode operation is successfully demonstrated over 80 km of Standard Single Mode Fiber (SSMF).

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Sofia B. Amado, Ricardo Ferreira, Pedro S. Costa, Fernando P. Guiomar, Somayeh Ziaie, António L. Teixeira, Nelson J. Muga, and Armando N. Pinto "Clock and carrier recovery in high-speed coherent optical communication systems", Proc. SPIE 9286, Second International Conference on Applications of Optics and Photonics, 92864M (22 August 2014); https://doi.org/10.1117/12.2063761

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