Optimized performance of erbium-doped fiber amplifiers in multiwavelength lightwave systems Ali, M. A. ; Elrefaie, A. F. ; Wagner, R. E. ; Mendez, F. ; Pan, J. ; Ahmed, S. A. Abstract Publication: IEEE Photonics Technology Letters Pub Date: August 1994 DOI: 10.1109/68.313087 Bibcode: 1994IPTL....6.1039A