Abstract

A single-mode Nd³⁺-doped tellurite glass fiber laser operating at 1.061 μm is described. We believe this is the first demonstration of a single-mode fiber laser in tellurite glass. A lasing threshold of 27 mW of 818-nm absorbed pump power and a slope efficiency output power versus pump power of 23% emitted from one end were observed in the fiber cavity with 11.9% Fresnel reflection at both ends.

© 1994 Optical Society of America

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