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US 9,834,469 B2Granted
Aluminophosphate glass composition
AssigneeSchott AG
InventorsSimi George, Paula Vullo, Ronald Klimek
Life of this patent
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Abstract
The invention relates to phosphate-based glasses suitable for use as a solid laser medium, doped with Er3+ and sensitized with Yb, in “eye-safe” applications. In particular, the invention relates to improving the physical properties of such phosphate-based laser glass composition, particularly with regards to strength of the glass structure and improved thermal shock resistance.
Claims40
A phosphate glass composition comprises (based on mol %):
- P2O5
- 55.00-65.00
- Al2O3
- 4.00-20.00
- K2O
- 4.00-8.00
- Na2O
- 8.00-18.50
- Li2O
- 00.0-2.00
- Rb2O
- 0.00-2.00
- C s2O
- 0.00-2.00
- SiO2
- 0.00-12.00
- MO
- 0.00-7.00
- Bi2O3
- 0.00-3.00
- TeO2
- 0.00-3.00
- GeO2
- 0.00-1.00
- Nb2O5
- 0.00-2.00
- Sb2O3
- 0.00-0.50
- Cr2O3
- 0.00-0.50
- CeO2
- 0.00-0.30
- Er2O3
- 0.03-1.00
- Yb2O3
- 5.00-10.00
- R2O
- 12.00-25.00
- wherein
- R2O=the sum of the amounts of Li2O, Na2O, K2O, Rb2O and Cs2O;
- MO=the sum of the amounts of MgO, CaO, SrO, BaO, and ZnO;
- and
- wherein the sum of Al2O3, SiO2, and Na2O is 20.00-28.00 mol %.
40 more elements
Dependencies are inferred from the claim text.