Title :
Brillouin effects in distributed Raman amplifiers under saturated conditions
Author :
Giraldi, M. T M Rocco ; Rocha, A.M. ; Neto, B. ; Correia, C. ; Segatto, M.E.V. ; Pontes, M.J. ; Barbero, A.P.L. ; Costa, J.C.W. ; Martinez, M.A.G. ; Frazao, O. ; Baptista, J.M. ; Salgado, H.M. ; Marques, M.B. ; Teixeira, A.L.J. ; Andre, P.S.
Author_Institution :
IME, Rio de Janeiro, Brazil
Abstract :
This paper analyzes experimentally the limitations observed in lightwave systems using distributed Raman amplifiers operating under large pump power input conditions. The Brillouin effect is observed as the pump power becomes equal to 1 watt centered in a specific pump wavelength. The presence of Brillouin peaks degrades the system performance. The Raman amplifier is set with singlemode and dispersion compensating fibers and evaluated in a high capacity WDM link at transmission rates up to 40 Gb/s per channel. The dispersion compensation was accomplished by adjusting the length of the dispersion compensating fiber. The system and amplifier characterization were developed in terms of the on-off gain, ripple, optical signal-to-noise ratio, eye diagram and extinction ratio.
Keywords :
distributed amplifiers; optical fibre amplifiers; stimulated Brillouin scattering; Brillouin effects; dispersion compensating fibers; distributed Raman amplifiers; optical amplifiers; saturated conditions; Degradation; Distributed amplifiers; Optical amplifiers; Optical fiber amplifiers; Optical pumping; Power amplifiers; Semiconductor optical amplifiers; Stimulated emission; System performance; Wavelength division multiplexing; Stimulated Brillouin scattering; distributed Raman amplifiers; nonlinearities; optical amplifiers;
Conference_Titel :
Microwave and Optoelectronics Conference (IMOC), 2009 SBMO/IEEE MTT-S International
Conference_Location :
Belem
Print_ISBN :
978-1-4244-5356-6
Electronic_ISBN :
1679-4389
DOI :
10.1109/IMOC.2009.5427460
