Suppression of phase error in differential phase-shift keying data by amplitude regeneration.
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.
Johannisson
Pontus
P
Department of Radio and Space Science, Chalmers University of Technology, Göteborg, Sweden. pontus.johannisson@elmagn.chalmers.se
Adolfsson
Göran
G
Karlsson
Magnus
M