Tm~(3+)-doped tellurite glass for a broadband amplifier at 1.47 μm

摘要

Tm~(3+)-doped tellurite glass is investigated as a host for a broadband amplifier at 1.47 μm. The Tm~(3+) fluorescence spectrum, lifetime, and cross section in tellurite glass are compared with those in fluorozirconate glasses. The advantages of a Tm~(3+)-tellurite amplifier, especially when it is employed in combination with an Er~(3+)-tellurite 1.55-μm amplifier, are discussed.