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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 30, Iss. 18 — Sep. 15, 2012
  • pp: 3010–3016

All-Optical Switching of QPSK Signals for 100 G Coherent Systems

C. Porzi, G. Meloni, M. Secondini, L. Potì, G. Contestabile, and A. Bogoni

Journal of Lightwave Technology, Vol. 30, Issue 18, pp. 3010-3016 (2012)


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Abstract

We propose a novel method for signal processing of phase-modulated signals suitable for 100 G coherent systems. By exploiting a single semiconductor optical amplifier Mach–Zehnder interferometer, all-optical selective switching with simultaneous wavelength conversion of bursts of data in the original signal is demonstrated. The operation is suitable for dynamic wavelength routing and/or add/drop operation in multichannel coherent systems, thus enabling flexible network resources optimization. The operation has been demonstrated for single-channel single-polarization, dual-channel (DC) single-polarization, and DC polarization-multiplexed (PM) 28 GBaud quadrature phase shift key-modulated signals. By exploiting coherent detection strategy and digital signal processing, an error rate below 10-3 prior to forward error correction has been observed for all the experiments; the corresponding optical signal-to-noise ratio penalty has been measured to be almost negligible in the single-polarization case whereas a maximum penalty below 1.5 dB for the PM one is reported.

© 2012 IEEE

Citation
C. Porzi, G. Meloni, M. Secondini, L. Potì, G. Contestabile, and A. Bogoni, "All-Optical Switching of QPSK Signals for 100 G Coherent Systems," J. Lightwave Technol. 30, 3010-3016 (2012)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-30-18-3010


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