Erbium-Doped Fiber Amplifiers can present holes in spectral gain in Wavelength Division Multiplexing operation. The origin of this inhomogeneous saturation behavior is still a subject of controversy. In this paper we present both an experimental methods and a gain's model. Our experimental method allow us to measure the first homogeneous linewidth of the 1.5 $\mu$m erbium emission with gain spectral hole burning consistently with the other measurement in the literature and the model explains the differences observed in literature between GSHB and other measurement methods.
© 2011 IEEE
Romain Peretti, Bernard Jacquier, David Boivin, Ekaterina Burov, and Anne-Marie Jurdyc, "Inhomogeneous Gain Saturation in EDF: Experiment and Modeling," J. Lightwave Technol. 29, 1445-1452 (2011)