Light-amplifying glass

Details Light-amplifying glass Light-amplifying glass

2011-03-25

2011-11-08

Group, Karl (Department: 1731)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S041000, C501S050000, C501S073000, C501S078000, C385S142000, C372S040000, C359S341500

Reexamination Certificate

active

08053383

ABSTRACT:
To provide a light-amplifying glass capable of increasing absorption of Yb3+. A light-amplifying glass to be used for amplifying light having a wavelength of 1.0 to 1.2 μm, which comprises, as represented by mol % based on the following oxides, from 30 to 55% of Bi2O3, from 25 to 50% of either one, or both in total, of SiO2and B2O3, from 12 to 27% of either one, or both in total, of Al2O3and Ga2O3, from 0 to 4% of La2O3and from 0.1 to 4% of Yb2O3and which contains substantially no Er2O3. An optical waveguide having such a light-amplifying glass as a core.

REFERENCES:
patent: 6819860 (2004-11-01), Ohara et al.
patent: 7515332 (2009-04-01), Tsuda
patent: 2002-145636 (2002-05-01), None
patent: 2003-183049 (2003-07-01), None
patent: 2007-149766 (2007-06-01), None
International Search Report issued Jan. 12, 2010 in PCT/JP/09/068694 filed Dec. 4, 2009.
Paschotta et al., “Ytterbium-Doped Fiber Amplifiers”, J. Quantum Electron., vol. 33, No. 7, pp. 1049-1056 (1997).

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