title: Nonlinear performance of multi-granularity orthogonal transmission systems with frequency division multiplexing.
abstract: Orthogonal transmission with frequency division multiplexing technique is investigated for next generation optical communication systems. Coherent optical orthogonal frequency division multiplexing (OFDM) and single-carrier frequency division multiplexing (SCFDM) schemes are compared in combination with polarization-division multiplexing quadrature phase shift keying (QPSK) or 16-QAM (quadrature amplitude modulation) formats. Multi-granularity transmission with flexible bandwidth can be realized through ultra-dense wavelength division multiplexing (UDWDM) based on the orthogonal technique. The system performance is numerically studied with special emphasis on transmission degradations due to fiber Kerr nonlinearity. The maximum reach and fiber capacity for different spectral efficiencies are investigated for systems with nonlinear propagation over uncompensated standard single-mode fiber (SSMF) links with lumped amplification.
authors.affiliation: The state key laboratory of advanced optical communication systems & networks, Peking University, Beijing 100871, China. fzhang@pku.edu.cn
authors.forename: Fan
authors.initials: F
authors.lastname: Zhang
authors.forename: Chuanchuan
authors.initials: C
authors.lastname: Yang
authors.forename: Xi
authors.initials: X
authors.lastname: Fang
authors.forename: Tingting
authors.initials: T
authors.lastname: Zhang
authors.forename: Zhangyuan
authors.initials: Z
authors.lastname: Chen