title: Cross-phase modulation bandwidth in ultrafast fiber wavelength converters.
abstract: We propose a novel analytical model for the characterization of fiber cross-phase modulation (XPM) in ultrafast all-optical fiber wavelength converters, operating at modulation frequencies higher than 1 THz. The model is used to compare the XPM frequency limitations of a conventional and a highly nonlinear dispersion shifted fiber (HN-DSF) and a bismuth oxide-based fiber, introducing the XPM bandwidth as a design parameter. It is shown that the HN-DSF presents the highest XPM bandwidth, above 1 THz, making it the most appropriate for ultrafast wavelength conversion.
authors.affiliation: Siemens Networks S. A., Amadora, Portugal. ruben.luis@siemens.com
authors.forename: Ruben S
authors.initials: RS
authors.lastname: Luís
authors.forename: Paulo
authors.initials: P
authors.lastname: Monteiro
authors.forename: António
authors.initials: A
authors.lastname: Teixeira