Performance comparison of single carrier and OFDM in coherent optical long-haul communication systems

Adriana Lobato; Maxim Kuschnerov; Alberto Diaz; Antonio Napoli; Bernhard Spinnler; Berthold Lankl

doi:10.1364/ACP.2011.83090B

Optical Transmission Systems, Subsystems, and Technologies
Proceedings of SPIE (Optica Publishing Group, 2011),
paper 83090B
•https://doi.org/10.1364/ACP.2011.83090B

Performance comparison of single carrier and OFDM in coherent optical long-haul communication systems

Adriana Lobato, Maxim Kuschnerov, Alberto Diaz, Antonio Napoli, Bernhard Spinnler, and Berthold Lankl

Asia Communications and Photonics Conference and Exhibition 2011

Shanghai China
13–16 November 2011
ISBN: 978-0-8194-8957-9

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A. Lobato, M. Kuschnerov, A. Diaz, A. Napoli, B. Spinnler, and B. Lankl, "Performance comparison of single carrier and OFDM in coherent optical long-haul communication systems," in Optical Transmission Systems, Subsystems, and Technologies, X. Liu, E. Ciaramella, N. Wada, and N. Chi, eds., Vol. 8309 of Proceedings of SPIE (Optica Publishing Group, 2011), paper 83090B.

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Abstract

We investigate the nonlinear tolerance of coherent detected 50 Gbit/s dual-polarization binary-phase-shift-keying (DP-BPSK), 100 Gbit/s dual-polarization quaternary-phase-shift-keying (DP-QPSK), and 200 Gbit/s dual-polarization 16-ary quadrature amplitude modulation (DP-16-QAM) for single carrier with pulse shaping and orthogonal frequency division multiplexing (OFDM). The performance of these systems is compared and tested in two different scenarios: dispersion managed and unmanaged links. The results show that employing return-to-zero with 50 % of duty cycle (RZ50) as pulse shaping has a superior performance, especially in dispersion unmanaged links.

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