title: Phase synchronization scheme for a practical phase sensitive amplifier of ASK-NRZ signals.
abstract: We present a phase locking scheme that enables the demonstration of a practical dual pump degenerate phase sensitive amplifier for 10 Gbit/s non-return to zero amplitude shift keying signals. The scheme makes use of cascaded Mach Zehnder modulators for creating the pump frequencies as well as of injection locking for extracting the signal carrier and synchronizing the local lasers. An in depth optimization study has been performed, based on measured error rate performance, and the main degradation factors have been identified.
authors.affiliation: Tyndall National Institute and Department of Physics, University College Cork, Ireland. stylianos.sygletos@tyndall.ie
authors.forename: Stylianos
authors.initials: S
authors.lastname: Sygletos
authors.forename: Selwan K
authors.initials: SK
authors.lastname: Ibrahim
authors.forename: Ruwan
authors.initials: R
authors.lastname: Weerasuriya
authors.forename: Richard
authors.initials: R
authors.lastname: Phelan
authors.forename: L Grüner
authors.initials: LG
authors.lastname: Nielsen
authors.forename: Adonis
authors.initials: A
authors.lastname: Bogris
authors.forename: Dimitris
authors.initials: D
authors.lastname: Syvridis
authors.forename: James
authors.initials: J
authors.lastname: O'Gorman
authors.forename: Andrew D
authors.initials: AD
authors.lastname: Ellis
mesh_terms: D000669:Amplifiers, Electronic; D016477:Artifacts; D004867:Equipment Design; D007834:Lasers; D055095:Optics and Photonics / Q000295:instrumentation* / Q000379:methods*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*