Title :
Two-stage Sagnac demultiplexer
Author :
Parolari, Paola ; Boffi, Pierpaolo ; Marazzi, Lucia ; Martinelli, Mario
Author_Institution :
CoreCom, Milan, Italy
Abstract :
Cascading a semiconductor optical amplifier (SOA)-based Sagnac interferometer with a second Sagnac stage allows significant improvement in the overall demultiplexer performance. A theoretical analysis and simulations show that the exploitation of a two-stage architecture results in a demultiplexing window sharpness and time compression. Eye-diagram and Q-factor experimental characterization at 2.5 Gb/s of the demultiplexer is presented, showing a 25% compression in time of the two-stage switching window and a 4.7 Q-factor improvement.
Keywords :
Sagnac interferometers; demultiplexing equipment; optical communication equipment; semiconductor optical amplifiers; time division multiplexing; 2.5 Gbit/s; Q-factor experimental characterization; Q-factor improvement; demultiplexer performance; demultiplexing window sharpness; eye-diagram; semiconductor optical amplifier; theoretical analysis; time compression; two-stage Sagnac demultiplexer; two-stage architecture; two-stage switching window; Fiber nonlinear optics; High speed optical techniques; Nonlinear optics; Optical crosstalk; Optical distortion; Optical filters; Optical interferometry; Optical signal processing; Sagnac interferometers; Semiconductor optical amplifiers;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2003.815508
