S00-128 New Amorphous Oxide Hosts for Erbium-Doped Fiber Amplifiers Applications In a method of amplifying optical input signals over a wide bandwidth, the optical input signals are applied to an optical waveguide made from a rare-earth-doped amorphous material (e.g., erbium-doped yttrium aluminum oxide material). Michel Digonnet Martin Fejer Yannick Gerard Feillens Silviu Savin