Title :
Effective suppression of penalties induced by parametric nonlinear interaction in distributed Raman amplifiers based on NZ-DS fibers
Author :
Sugliani, S. ; Sacchi, G. ; Bolognini, G. ; Faralli, S. ; Pasquale, F. Di
Author_Institution :
Laboratorio Nazionale di Reti Fotoniche, CNIT, Pisa, Italy
Abstract :
We discuss penalties induced by pump intensity noise transfer and parametric nonlinear interactions in counterpumped distributed Raman amplifiers based on nonzero dispersion shifted fibers. An effective suppression of penalties induced by parametric nonlinear interaction is experimentally demonstrated by a new Raman pump module, based on cascaded fiber Raman lasers.
Keywords :
Raman lasers; laser noise; nonlinear optics; optical communication equipment; optical fibre amplifiers; optical fibre dispersion; optical pumping; wavelength division multiplexing; Raman pump module; cascaded fiber Raman lasers; counterpumped distributed Raman amplifiers; distributed Raman amplifiers; nonzero dispersion shifted fibers; parametric nonlinear interaction; pump intensity noise transfer; Degradation; Distributed amplifiers; Fiber lasers; Laser excitation; Optical amplifiers; Optical fiber amplifiers; Optical fiber communication; Optical noise; Signal to noise ratio; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.820111
