Fady I. El-Nahal,Nabih M. Abualoff.Coherent optical communication systems based on orthogonal frequency division multiplexing[J].Optoelectronics Letters,2020,16(4):303-305 Coherent optical communication systems based on orthogonal frequency division multiplexing Author Name Affiliation Fady I. El-Nahal  Institute for Communications Engineering, Technical University of Munich, Munich 80290, Germany  Nabih M. Abualoff  Institute for Communications Engineering, Technical University of Munich, Munich 80290, Germany  Abstract:       Coherent optical orthogonal frequency division multiplexing (CO-OFDM) is considered as a key solution for long haul optical fiber communication systems thanks to its high spectral efficiency and robustness against chromatic dispersion. We have investigated a CO-OFDM based on quadrature phase shift keying (QPSK)-OFDM and 16 quadrature amplitude modulation (16QAM)-OFDM over 500 km uncompensated fiber links. The simulation results show that the proposed system is a promising solution to meet the aggregate data rate demands cost effectively in future high-speed optical communication systems. Hits: 722 Download times: 0 View Full Text    Download reader