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US 8,526,475 B2Granted
Broadening of rare earth ion emission bandwidth in phosphate based laser glasses
AssigneeSchott AG
InventorsHong Li, Sally Pucilowski, Joseph S. Hayden
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Abstract
Disclosed are the use of phosphate-based glasses as a solid state laser gain medium, in particular, the invention relates to broadening the emission bandwidth of rare earth ions used as lasing ions in a phosphate-based glass composition, where the broadening of the emission bandwidth is believed to be achieved by the hybridization of the glass network.
Claims17
A laser phosphate glass having the composition in mol % of
- P2O5
- 35-65
- SiO2
- 0-20
- B2O3
- 0-15
- Al2O3
- >0-10
- Nb2O5
- 0-10
- TeO2
- 0-5
- GeO2
- 0-5
- WO3
- 0-5
- Bi2O3
- 0-5
- La2O3
- 0-5
- Ln2O3
- >0-10 (Ln = one of lasing ions of elements 58 through 71
- in the periodic table)
- R2O
- 10-30 (R = one of Li, Na, K, Rb, Cs)
- MO
- 10-30 (M = one of Mg, Ca, Sr, Ba, Zn)
- Sb2O3
- 0-5
- and wherein two or more of SiO2, B2O3, TeO2, Nb2O5, Bi2O3, WO3, and/or GeO2 are present, with their sum being at least 1 mol %,
- and wherein K2O is excluded from the glass composition.
28 more elements
Dependencies are inferred from the claim text.