H. Aghababaeian and T. Toosi (Iran)
Optical Amplifier, EDFA, Nonlinear Fiber Optic, SRS, SBS.
The effects of fiber nonlinearity on signal propagation in
EDFAs are hardly considered. Hereby, we will study the
effects of SRS and SBS in distributed EDFAs. The results
of modeling and simulation have shown that the SRS will
affect the noise and spectral gain of amplifier and the SBS
will cause backward scattering of the pump light and
causes a reduction in the gain of DEDFAs. The Numerical
results will be detailed, possibility of using SRS for gain
broadening in EDFAs will be described and the threshold
value of laser linewidth for minimizing the gain reduction
due to SBS will be obtained.