Reduction of the phase jitter in differential phase-shift-keying soliton transmission systems by in-line Butterworth filters.
We examine reduction of phase jitter by use of in-line Butterworth filters in soliton systems in the context of differential phase-shift-keying coding. We also demonstrate numerically that the use of a Butterworth filter in a return-to-zero differential phase-shift-keying system can reduce continuum background radiation.
Derevyanko
S A
SA
Photonics Research Group, Aston University, Birmingham B4 7ET, UK. s.derevyanko@aston.ac.uk
Turitsyn
S K
SK