Effects of stimulated Raman scattering on the distributed erbium-doped fiber amplifier are studied numerically. The pump wavelength is 1.48 micrometers and the signal wavelength lies between 1.52 micrometers and 1.57 micrometers . The competition between the gain from stimulated Raman scattering and the gain from the pumped erbium ions is shown. It is found that the signal gain is enhanced by SRS except for the signal near 1.53 micrometers .
"Effects of stimulated Raman scattering on distributed erbium-doped fiber amplifiers", Proc. SPIE 1626, Nonlinear Optics III, (1 April 1992); doi: 10.1117/12.58109; https://doi.org/10.1117/12.58109