All-optical phase and amplitude regenerator for next-generation telecommunications systems
Journal article, 2010
Fibre-optic communications systems have traditionally carried data using binary (on-off) encoding of the light amplitude. However, next-generation systems will use both the amplitude and phase of the optical carrier to achieve higher spectral efficiencies and thus higher overall data capacities. Although this approach requires highly complex transmitters and receivers, the increased capacity and many further practical benefits that accrue from a full knowledge of the amplitude and phase of the optical field more than outweigh this additional hardware complexity and can greatly simplify optical network design. However, use of the complex optical field gives rise to a new dominant limitation to system performance—nonlinear phase noise. Developing a device to remove this noise is therefore of great technical importance. Here, we report the development of the first practical (‘black-box’) all-optical regenerator capable
of removing both phase and amplitude noise from binary phase-encoded optical communications signals.
Author
Radan Slavík
University of Southampton
Francesca Parmigiani
University of Southampton
Joseph Kakande
University of Southampton
Carl Peter Lundström
Chalmers, Microtechnology and Nanoscience (MC2), Photonics
Martin E Sjödin
Chalmers, Microtechnology and Nanoscience (MC2), Photonics
Peter Andrekson
Chalmers, Microtechnology and Nanoscience (MC2), Photonics
Ruwan Weerasuriya
Tyndall National Institute at National University of Ireland, Cork
S. Sygletos
Tyndall National Institute at National University of Ireland, Cork
A. D. Ellis
Tyndall National Institute at National University of Ireland, Cork
Lars Gruner-Nielsen
D Jakobsen
Søren Herstrøm
Richard Phelan
Trinity College Dublin
James O´Gorman
Trinity College Dublin
Adonis Bogris
University of Athens
Dimitris Syvridis
University of Athens
Sonali Dasgupta
University of Southampton
P. Petropoulos
University of Southampton
David J. Richardson
University of Southampton
Nature Photonics
1749-4885 (ISSN) 17494893 (eISSN)
Vol. 4 10 690-695Subject Categories
Telecommunications
DOI
10.1038/NPHOTON.2010.203