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10 May 2012 RF-pilot-based nonlinearity compensation in frequency domain for CO-OFDM transmission
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The effects of fiber nonlinearity in Coherent Optical Orthogonal Frequency-Division Multiplexing (CO-OFDM) transmission, such as self-phase modulation (SPM) and cross-phase modulation (XPM), are a major concern. In this paper, we investigate the use of RF-Pilot (RFP) based nonlinearity compensation scheme in frequency domain to compensate for fiber nonlinearity in a coherent OFDM optical system. It shows that the RFP-based compensation scheme has superiority over a conventional pilot-based compensation scheme at FEC threshold.
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Omar Jan, M. El-Darawy, K. Puntsri, A. Al-Bermani, and R. Noé "RF-pilot-based nonlinearity compensation in frequency domain for CO-OFDM transmission", Proc. SPIE 8434, Nonlinear Optics and Applications VI, 84340J (10 May 2012);

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