Halide glass medium containing trivalent uranium ions and process for producing said medium
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United States of America Patent
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May 17, 1994
Grant Date -
N/A
app pub date -
May 12, 1992
filing date -
May 14, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Said medium is a halide glass (2, 8, 12, 20) containing uranium ions at least partly in the form U.sup.3+ and having, at least at one point of a region of the near infrared between 2.2 and 3.4 micrometers, an optical attenuation not exceeding 0.01 cm.sup.-1. For the production thereof, preparation takes place of a halide glass containing uranium ions, at least partly in the form U.sup.4+ and/or U.sup.5+, and having at least at this point the aforementioned attenuation. The glass is exposed to ionizing radiation able to produce trivalent uranium ions from the uranium ions of the prepared glass. Application to the production of optical guides, whereof the guiding parts are formed from such a medium.
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