title: Ultrahigh-speed "orthogonal" TDM transmission with an optical Nyquist pulse train.
abstract: We propose a novel "orthogonal" TDM transmission scheme using an optical Nyquist pulse that enables us to achieve an ultrahigh data rate and spectral efficiency simultaneously without any intersymbol interference (ISI). We analytically describe the principle of orthogonal TDM, and demonstrate a 160 Gbaud optical orthogonal TDM transmission using 40 GHz optical Nyquist pulses. Tolerance to GVD and the dispersion slope is significantly improved by virtue of the orthogonality, reduced bandwidth, and minimum ISI.
authors.affiliation: Research Institute of Electrical Communication, Tohoku University, Aoba-ku, Sendai-shi, Japan. nakazawa@riec.tohoku.ac.jp
authors.forename: Masataka
authors.initials: M
authors.lastname: Nakazawa
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Hirooka
authors.forename: Peng
authors.initials: P
authors.lastname: Ruan
authors.forename: Pengyu
authors.initials: P
authors.lastname: Guan
mesh_terms: D004867:Equipment Design; D005336:Fiber Optic Technology / Q000295:instrumentation* / Q000379:methods*; D008962:Models, Theoretical; D013685:Telecommunications / Q000295:instrumentation*; D013997:Time Factors