Open AccessSpectral filtering from a cross-phase modulated signal for RZ to NRZ format and wavelength conversion
Author(s) -
S. H. Lee,
K. K. Chow,
Chester Shu
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.001710
Subject(s) - optics , signal (programming language) , cross phase modulation , phase modulation , self phase modulation , dispersion (optics) , wavelength , modulation (music) , bit error rate , phase (matter) , pulse shaping , physics , optical filter , nonlinear optics , phase noise , computer science , telecommunications , laser , channel (broadcasting) , quantum mechanics , acoustics , programming language
All-optical return-to-zero (RZ) to non-return-to-zero (NRZ) format conversion has been demonstrated using cross-phase modulation in a dispersion-shifted fiber, which can in principle work with different signal bit rates and does not require any external pulse duplicator. The output wavelength-converted signal is obtained from filtering of the broadened optical spectrum. A power penalty of 2 dB is obtained at 10-9 bit-error-rate level in a 10 Gb/s conversion experiment.