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Type: Artigo de Periódico
Title: Comparison Of Dsp-based Nonlinear Equalizers For Intra-channel Nonlinearity Compensation In Coherent Optical Ofdm
Author: Giacoumidis
E; Mhatli
S; Nguyen
T; Le
ST; Aldaya
I; McCarthy
ME; Ellis
AD; Eggleton
Abstract: A novel versatile digital signal processing (DSP)-based equalizer using support vector machine regression (SVR) is proposed for 16-quadrature amplitude modulated (16-QAM) coherent optical orthogonal frequency-division multiplexing (CO-OFDM) and experimentally compared to traditional DSP-based deterministic fiber-induced non-linearity equalizers (NLEs), namely the full-field digital back-propagation (DBP) and the inverse Volterra series transfer function-based NLE (V-NLE). For a 40 Gb/s 16-QAM CO-OFDM at 2000 km, SVR-NLE extends the optimum launched optical power (LOP) by 4 dB compared to V-NLE by means of reduction of fiber nonlinearity. In comparison to full-field DBP at a LOP of 6 dBm, SVR-NLE outperforms by similar to 1 dB in Q-factor. In addition, SVR-NLE is the most computational efficient DSP-NLE. (C) 2016 Optical Society of America
Citation: Optics Letters. OPTICAL SOC AMER, n. 41, n. 11, p. 2509 - 2512.
Rights: fechado
Identifier DOI: 10.1364/OL.41.002509
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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