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Conferences > OAA > 2001 > OWB > OWB4

Spectral properties of Tm3+-doped glasses for S-band amplifier

Setsuhisa Tanabe, Takeshi Tamaoka, Teiichi Hanada, Yuki Kondo, Naoki Sugimoto, and Setsuro Ito

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Abstract

Optical properties of Tm3+-doped glasses in various compositions are compared as candidate materials of 1.4μm amplifier. Although the initial 3H4 level is easily quenched in high- phonon- energy environment, the quantum efficiency of the 3H4 and the 1.4μm/l.8μm intensity ratio was large enough in some oxide glasses, such as tellurite and Bi-germanate. The effect of codopants, such as Eu3+, Tb3+, Ho3+, on the lifetime of the Tm3+-levels was investigated for efficient population inversion between the 3H4 and 3F4. The Ho3+ showed the best selectivity in quenching effect among three ions.

© 2001 Optical Society of America

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