The determination of the saturation power for erbium doped fiber amplifier

Here is presented a method for determination of the saturation power from the EDFA (Erbium Doped Fiber Amplifier). This method uses the analytical expressions in different approximations to obtain the saturation power of the EDFA. We have obtained the saturation power of EDFA by varying the wavelength in the interval lambda is an element of [1.45divided by1.64] mum. Also, we have calculated the absorption and emission cross-sections for optical fiber with the germano-aluminosilicate. For these values we obtain the saturation power P-sat in the following interval P-sat is an element of [0.1divided by5] mW and the overlap-inversion factor Gamma in the following interval Gamma is an element of [0.1divided by0.8]. Using these results we can optimize the EDFA performances and increase the capacity and distance for transmission in the optical networks.