Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...
Patent
1992-02-03
1993-09-14
Lindsay, Robert L.
Compositions: ceramic
Ceramic compositions
Glass compositions, compositions containing glass other than...
65 311, 65134, 372 6, 385142, C03C 332, H01S 307
Patent
active
052448460
ABSTRACT:
An optical functioning glass for enabling optical amplification at 1.3-.mu.m wavelength band or increasing efficiency of the amplification is disclosed. The optical functioning glass contains Nd.sup.3+ as an active material and uranium, both of which are doped in a multi-component function glass serving as a host glass. Since uranium is doped in the optical functioning glass, light emission of Nd.sup.3+ in the 1.06-.mu.m wavelength band can be absorbed by uranium. A decrease in efficiency of induced emission in a 1.3-.mu.m wavelength band can be prevented, and an optical functioning glass suitable for optical amplification in the 1.3-.mu.m wavelength band can be obtained. When a fiber is formed using the optical functioning glass as a core, a low-threshold, high-gain fiber amplifier, fiber laser, and the like can be obtained.
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Sytk'ko et al., "Luminescent Converter for Solar-Cell Collectors Based on UO22+ and ND3+ Coactivated Phosphate Glass", Applied Solar Energy, vol. 25, No. 5, 1989, New York, pp. 22-25.
D. Becherescu et al., "Fluorescent Glasses", Chemical Abstracts, vol. 113, No. 24, Dec. 1990, Columbus, Ohio, abstract No. 216566P.
Kanamori Hiroo
Miyajima Yoshiaki
Nakazato Koji
Onishi Masashi
Watanabe Minoru
Lindsay Robert L.
Nippon Telegraph and Telephone Corp.
Sumitomo Electric Industries Ltd.
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