Tellurite glass composite, optical waveguide and optical amplifier using the same
AssigneeElectronics and Telecommunications Research Institute
InventorsWoon Jin Chung, Bong Je Park, Hong Seok Seo, Joon Tae Ahn
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Abstract
Provided are a tellurite glass composite, an optical waveguide, and an optical amplifier using the tellurite glass composite. The tellurite glass composite includes an entire composite including 25 (mol %)≦TeO2≦90 (mol %), 1 (mol %)≦T1O3≦55 (mol %) or 1 (mol %)≦T2O3≦40 (mol %), 0 (mol %)≦ZnO≦35 (mol %), 0 (mol %)≦M2O≦35 (mol %), and 0 (mol %)≦Bi2O3≦20 (mol %). Here, T1 includes a transition metal Mo, T2 includes a transition metal W, M2O includes Li2O, Na2O, or two or more of Li2O, Na2O, K2O, Rb2O, and Cs2O including metals having +1 valence electrons, and amounts of M2O and ZnO are not simultaneously “0”.
Claims18
A tellurite glass composite for increasing a FWHM (full-width at half maximum) of Raman scattering peak centered at 700-800 cm−1, comprising an entire composite comprising 25 (mol %)≦TeO2≦90 (mol %), 1 (mol %)≦T1O3≦55 (mol %) or 1 (mol %)≦T2O3≦40 (mol %), 0 (mol %)≦ZnO≦35 (mol %), 0 (mol %)≦M2O≦35 (mol %), and 0 (mol %)≦Bi2O3≦20 (mol %),
- wherein T1 is a transition metal Mo, T2 a transition metal W, M2O consists of Li2O, Na2O, and K2O, and the amounts of M2O and ZnO are not simultaneously “0”.
A tellurite glass composite for increasing a FWHM (full-width at half maximum) of a Raman scattering peak centered at 700-800 cm−1, and used as a core layer of one of an optical fiber and an optical waveguide, comprising an entire composite comprising 25 (mol %)≦TeO2≦90 (mol %), 1 (mol %)≦T1O3≦55 (mol %) or 1 (mol %)≦T2O3≦40 (mol %), 0 (mol %)≦ZnO≦35 (mol %), 0 (mol %)≦M2O≦35 (mol %), and 0 (mol %)≦Bi2O3≦20 (mol %),
- wherein T1 is a transition metal of Mo, T2 is a transition metal of W, M2O consists of Li2O, Na2O, and K2O, and the amounts of M2O and ZnO are not simultaneously “0”.
An optical waveguide using a tellurite glass composite as a core layer, the tellurite glass composite for increasing a FWHM (full-width at half maximum) of Raman scattering peak centered at 700-800 cm−1, comprising an entire composite comprising 25 (mol %) ≦TeO2≦90 (mol %), 1 (mol %)≦T1O3≦55 (mol %) or 1 (mol %)≦T2O3≦40 (mol %), 0 (mol %)≦ZnO≦35 (mol %), 0 (mol %)≦M2O≦35 (mol %), and 0 (mol %)≦Bi2O3≦20 (mol %),
- wherein T1 is a transition metal of Mo, T2 is a transition metal of W, M2O consists of Li2O, Na2O, and K2O, and the amounts of M2O and ZnO are not simultaneously “0”.
An optical amplifier using a tellurite glass composite as a gain medium of one of an optical fiber and an optical waveguide and using pump sources having one or two or more wavelengths between 1150 nm and 1500 nm as excitation sources,
- the tellurite glass composite for increasing a FWHM (full-width at half maximum) of Raman scattering peak centered at 700-800 cm−1, comprising an entire composite comprising 25 (mol %)≦TeO2≦90 (mol %), 1 (mol %)≦T1O3≦55 (mol %) or 1 (mol %)≦T2O3≦40 (mol %), 0 (mol %)≦ZnO≦35 (mol %), 0 (mol %)≦M2O≦35 (mol %), and 0 (mol %)≦Bi2O3≦20 (mol %),
- wherein T1 is a transition metal of Mo, T2 is a transition metal of W, M2O consists of Li2O, Na2O, and K2O, and the amounts of M2O and ZnO are not simultaneously “0”.
Dependencies are inferred from the claim text.