Title :
Novel self-synchronization scheme for high-speed packet TDM networks
Author :
Xia, T.J. ; Kao, Y.-H. ; Liang, Y. ; Lou, J.W. ; Ahn, K.H. ; Boyraz, O. ; Nowak, G.A. ; Said, A.A. ; Islam, M.N.
Author_Institution :
MCI, Richardson, TX, USA
Abstract :
We demonstrate a novel self-synchronization scheme for high-speed packet time-division-multiplexed (TDM) networks using a fast saturated, but slowly recovered gain (or loss) combined with intensity discrimination. The marker pulse used in this self-synchronization scheme is the same as other pulses in the packets. In particular, we use a semiconductor optical amplifier (SOA) as the fast saturated but slowly-recovered gain element, and an unbalanced nonlinear optical loop mirror or a dispersion-shifted fiber/optical filter combination as an intensity discriminator. The contrast ratio of the first pulse to the remaining pulses of a 100 Gb/s packet, "10111000" is >3 dB at the output of the SOA and >20 dB at the outputs of both intensity discriminators.
Keywords :
high-speed optical techniques; mirrors; optical fibre networks; optical losses; optical saturation; packet switching; semiconductor optical amplifiers; synchronisation; time division multiplexing; 100 Gbit/s; Gb/s packet; contrast ratio; dispersion-shifted fiber; fast saturated; fast saturated slowly-recovered gain element; first pulse; high-speed packet TDM networks; high-speed packet time-division-multiplexed networks; intensity discrimination; intensity discriminator; intensity discriminators; marker pulse; optical filter combination; self-synchronization scheme; semiconductor optical amplifier; slowly recovered gain; slowly recovered loss; unbalanced nonlinear optical loop mirror; Fiber nonlinear optics; High speed optical techniques; Optical filters; Optical losses; Optical pulses; Optical saturation; Pulse amplifiers; Semiconductor optical amplifiers; Stimulated emission; Time division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
