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AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsBarry B. Harbison, Jasbinder S. Sanghera, L. Brandon Shaw, Ishwar D. Aggarwal
Estimating the term…
A telluride glass with glass transition temperature above 150.degree. C., fference between the crystallization temperature and the glass transition temperature of above 200.degree. C., and extended transmission in the infrared region of radiation of up to 20 microns having, on mol basis, 20-60% tellurium, 10-50% arsenic, 4-35% germanium, 0.5-15% gallium, up to 15% iodine, and up to 30% selenium. All or part of the gallium can be replaced with indium and the glass can contain up to 5%, based on the weight of the glass components, of a rare earth ion to render the glass fluorescent. Optical fibers drawn from these glasses have shown mid infrared fluorescence and may have as a bright source of IR light.
A glass comprising, on a mol basis, 20%-60% tellurium, 10-50% arsenic, 4-35% germanium, 0.5-15% gallium, up to 15% iodine, and up to 30% selenium, and wherein up to the entire amount of gallium is substituted with indium.
A telluride glass free of crystallites comprising, on mol basis, 20%-60% tellurium, 10-50% arsenic, 4-35% germanium, 0.5-15% gallium, up to 15% iodine, and up to 30% selenium, and wherein up to the entire amount of gallium is substituted with indium.
A glass fiber made from glass comprising, on a mol basis, 20%-60% tellurium, 10-50% arsenic, 4-35% germanium, 0.5-15% gallium, up to 15% iodine, and up to 30% selenium, and wherein up to the entire amount of gallium is substituted with indium.
Dependencies are inferred from the claim text.