Fiber Nonlinearity Equalizer Based on Support Vector Classification for Coherent Optical OFDM
A support vector machine (SVM) based classification nonlinear equalizer (NLE) is demonstrated, for the first time, in coherent optical orthogonal frequency division multiplexing (CO OFDM) For a 40 Gb/s 16 quadrature amplitude modulated (16QAM) CO OFDM system at 400 km of transmission, SVM NLE reduces the fiber induced nonlinearity penalty by about 1 dB in comparison to the benchmark artificial neural network (ANN) based and inverse Volterra series transfer function based NLEs.
IEEE Photonics Journal