title: Suppression of phase error in differential phase-shift keying data by amplitude regeneration.
abstract: A regenerator for differential phase-shift keying data, consisting of two Mach-Zehnder interferometers and two amplitude regenerators, is examined theoretically. The result, which shows that the phase error is suppressed if phase-preserving amplitude regenerators are used, provides a theoretical description of an already experimentally implemented regenerator.
authors.affiliation: Department of Radio and Space Science, Chalmers University of Technology, Göteborg, Sweden. pontus.johannisson@elmagn.chalmers.se
authors.forename: Pontus
authors.initials: P
authors.lastname: Johannisson
authors.forename: Göran
authors.initials: G
authors.lastname: Adolfsson
authors.forename: Magnus
authors.initials: M
authors.lastname: Karlsson