Comparison of DSP-based nonlinear equalizers for intra-channel nonlinearity compensation in coherent optical OFDM

Autor(es)

Giacoumidis, Elias ^{[1, 2]} ; Mhatli, Sofien ^[3] ; Nguyen, Tu ^[4] ; Le, Son T. ^[5] ; Aldaya, Ivan ^[6] ; McCarthy, Mary E. ^[5] ; Ellis, Andrew D. ^[5] ; Eggleton, Benjamin J. ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] Univ Sydney, Sch Phys, Ctr Ultrahigh Bandwidth Devices Opt Syst CUDOS, Sydney, NSW 2006 - Australia

^[2] Univ Sydney, Sch Phys, Inst Photon & Opt Sci, Sydney, NSW 2006 - Australia

^[3] EPT Univ Carthage, SERCOM Lab, Tunis 2078 - Tunisia

^[4] FPM UMONS, 31 Dolez, B-7000 Mons - Belgium

^[5] Aston Univ, Aston Inst Photon Technol, Birmingham B4 7ET, W Midlands - England

^[6] Univ Estadual Campinas, Inst Phys, BR-777 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: OPTICS LETTERS; v. 41, n. 11, p. 2509-2512, JUN 1 2016.
• Citações Web of Science: 14

Resumo

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 (AU)

• Processo FAPESP: 15/04113-0 - Não linearidades em Guias de Onda baseados em Silício
• Beneficiário: Ivan Aritz Aldaya Garde
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado