DSP-based optical modulation technique for long-haul transmission

T. Yoshida; T. Sugihara; K. Uto

doi:10.1117/12.2078042

7 February 2015 DSP-based optical modulation technique for long-haul transmission

T. Yoshida, T. Sugihara, K. Uto

Proceedings Volume 9389, Next-Generation Optical Communication: Components, Sub-Systems, and Systems IV; 93890K (2015) https://doi.org/10.1117/12.2078042
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

Fiber nonlinearity and equalization-enhanced phase noise (EEPN) generate rapid perturbations and critically limit the system capacity and range of long-haul optical transmission. It is possible to cancel the rapid perturbations by introducing a particular correlation between multiple signals at the transmitter and analyzing the received signals using digital signal processing. In this paper, we review our proposed techniques to cancel rapid perturbations of polarization multiplexed signals due to fiber nonlinearity and EEPN. Numerical simulation of quaternary phase-shift keying based signals shows 1.2 dB and 0.5 dB improvement respectively from the proposed cancellation techniques for fiber nonlinearity and EEPN.

Citation Download Citation

T. Yoshida, T. Sugihara, and K. Uto "DSP-based optical modulation technique for long-haul transmission", Proc. SPIE 9389, Next-Generation Optical Communication: Components, Sub-Systems, and Systems IV, 93890K (7 February 2015); https://doi.org/10.1117/12.2078042

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