Title :
All-Optical Picosecond Signal Processing in a M-Z Interferometer Based on a Multi-Section Semiconductor Optical Amplifier
Author :
Crognale, C. ; Di Giansante, A.
Author_Institution :
Technolabs S.p.A., L´´Aquila
Abstract :
New features of the cross-gain modulation and the cross-phase modulation in a nonlinear active device, made by a cascade of differently biased semiconductor optical amplifiers, have been numerically investigated and discussed. In the frame of an interferometric application, the performances of a 4 times 25 Gb/s all-optical demultiplexer based on such a multi-section amplifier have been derived. This new nonlinear amplifier has been revealing able to manipulate 1 ps FWHM optical Gaussian pulses both in terms of their amplitude and phase, without introducing any unwanted distortion in the extracted channel. The demultiplexed signal has shown a significant amplification, an excellent extinction ratio, and no degradation due to the optical gain pattern- dependence in the nonlinear multi-section amplifier.
Keywords :
Mach-Zehnder interferometers; demultiplexing equipment; electro-optical modulation; nonlinear optics; optical information processing; optical pulse generation; optical transmitters; phase modulation; semiconductor optical amplifiers; telecommunication channels; FWHM optical Gaussian pulses; M-Z interferometer; all-optical demultiplexer; all-optical picosecond signal processing; bit rate 25 Gbit/s; cross-gain modulation; cross-phase modulation; extinction ratio; multisection nonlinear semiconductor optical amplifier; nonlinear active device; time 1 ps; Nonlinear distortion; Nonlinear optics; Optical amplifiers; Optical distortion; Optical interferometry; Optical pulses; Optical signal processing; Pulse amplifiers; Semiconductor optical amplifiers; Stimulated emission;
Conference_Titel :
Global Telecommunications Conference, 2008. IEEE GLOBECOM 2008. IEEE
Conference_Location :
New Orleans, LO
Print_ISBN :
978-1-4244-2324-8
DOI :
10.1109/GLOCOM.2008.ECP.670
