Glass composition fluorescent at infrared wavelengths
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United States of America Patent
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Issued Date -
Sep 7, 2006
app pub date -
Dec 24, 2003
filing date -
Dec 25, 2002
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Abstract
The present invention provides a glass composition that exhibits a fluorescence function and an optical amplification function in a wide wavelength range. This glass composition includes a bismuth oxide, an aluminum oxide, and a glass network former. The glass network former includes an oxide other than silicon oxides as its main component. The glass composition emits fluorescence in an infrared wavelength region through irradiation of excitation light, with bismuth contained in the bismuth oxide functioning as a fluorescent source. A preferable glass network former is B.sub.2O.sub.3 or P.sub.2O.sub.5. This glass composition further may contain a univalent or divalent metal oxide.
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