title: 16-level differential phase shift keying (D16PSK) in direct detection optical communication systems.
abstract: Optical 16-level differential phase shift keying (D16PSK) carrying four bits for every symbol is proposed for direct detection optical communication systems. Transmitter and receiver schematics are presented, and the receiver sensitivity is discussed. We numerically investigate the impact of chromatic dispersion and nonlinear transmission degradations.
authors.affiliation: COM*DTU, Department of Communications, Optics and Materials, Technical University of Denmark, Ørsteds Plads, 345V, DK-2800, Kgs. Lyngby, Denmark.
authors.forename: Rakesh
authors.initials: R
authors.lastname: Sambaraju
authors.forename: Torger
authors.initials: T
authors.lastname: Tokle
authors.forename: Jesper
authors.initials: J
authors.lastname: Bevensee Jensen
authors.forename: Palle
authors.initials: P
authors.lastname: Jeppesen