@article{Foroni_37_11-2006,
author = "M. Foroni and F. Poli and A. Cucinotta and S. Selleri",
title = "S-Band Depressed-Cladding Erbium-Doped Fiber Amplifier with Double-Pass Configuration",
volume = "31",
number = "22",
pages = "3228--3230",
month = "november",
year = "2006",
journal = "Optics Letters",
}