IP Library › Granted Patent US 9,834,469
Granted Patent B2
US 9,834,469 · App. 15/012,936 · Granted Dec 5, 2017

Aluminophosphate glass composition

Inventors: Simi George (Pittston, PA); Paula Vullo (Harding, PA); Ronald Klimek (Shavertown, PA)
Assignee: SCHOTT CORPORATION
C03C3/17C03C3/062C03C4/12C03C4/14H01S3/0602H01S3/092H01S3/0933H01S3/0941H01S3/175H01S3/176H01S3/177C03C2204/00
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Quick Facts
Patent No.
US 9,834,469
App. No.
15/012,936
Granted
Dec 5, 2017
Kind
B2
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.

Claims (82)

1. A phosphate glass composition comprises (based on mol %):

P 2 O 5

55.00-65.00

Al 2 O 3

 4.00-20.00

K 2 O

4.00-8.00

Na 2 O

 8.00-18.50

Li 2 O

00.0-2.00

Rb 2 O

0.00-2.00

C s 2 O

0.00-2.00

SiO 2

 0.00-12.00

MO

0.00-7.00

Bi 2 O 3

0.00-3.00

TeO 2

0.00-3.00

GeO 2

0.00-1.00

Nb 2 O 5

0.00-2.00

Sb 2 O 3

0.00-0.50

Cr 2 O 3

0.00-0.50

CeO 2

0.00-0.30

Er 2 O 3

0.03-1.00

Yb 2 O 3

 5.00-10.00

R 2 O

12.00-25.00

wherein

R 2 O=the sum of the amounts of Li 2 O, Na 2 O, K 2 O, Rb 2 O and Cs 2 O;

MO=the sum of the amounts of MgO, CaO, SrO, BaO, and ZnO; and

wherein the sum of Al 2 O 3 , SiO 2 , and Na 2 O is 20.00-28.00 mol %.

2. A glass composition according to claim 1 , wherein the amount of P 2 O 5 is 55.00-60.00 mol %.

3. A glass composition according to claim 1 , wherein the amount of P 2 O 5 is 57.00-60.00 mol %.

4. A glass composition according to claim 1 , wherein the amount of Al 2 O 3 is 5.00-7.00 mol %.

5. A glass composition according to claim 1 , wherein the amount of Al 2 O 3 is 10.00-12.00 mol %.

6. A glass composition according to claim 1 , wherein the amount of Al 2 O 3 is 15.00-18.00 mol %.

7. A glass composition according to claim 1 , wherein the amount of K 2 O is 5.00-7.00 mol %.

8. A glass composition according to claim 1 , wherein the amount of K 2 O is 5.50-6.5 mol %.

9. A glass composition according to claim 1 , wherein the amount of Na 2 O is 9.00-16.00 mol %.

10. A glass composition according to claim 1 , wherein the amount of Na 2 O is 10.00-15.00 mol %.

11. A glass composition according to claim 1 , wherein the amount of Li 2 O is 0.00-1.00 mol %.

12. A glass composition according to claim 1 , wherein the amount of Rb 2 O is 0.00-1.00 mol %.

13. A glass composition according to claim 1 , wherein the amount of Cs 2 O is 0.00-1.00 mol %.

14. A glass composition according to claim 1 , wherein the amount of SiO 2 is 0.00-11.00 mol %.

15. A glass composition according to claim 1 , wherein the amount of SiO 2 is 4.00-11.00 mol %.

16. A glass composition according to claim 1 , wherein the amount of MO is 0.00-6.00 mol %.

17. A glass composition according to claim 1 , wherein the amount of MO is 0.00-5.00 mol %.

18. A glass composition according to claim 1 , wherein the amount of TeO 2 is 0.00-2.50 mol %.

19. A glass composition according to claim 1 , wherein the amount of TeO 2 is 0.00-2.00 mol %.

20. A glass composition according to claim 1 , wherein the amount of GeO 2 is 0.00-0.50 mol %.

21. A glass composition according to claim 1 , wherein the amount of GeO 2 is 0.00-0.10 mol %.

22. A glass composition according to claim 1 , wherein the amount of Nb 2 O 5 is 0.50-2.00 mol %.

23. A glass composition according to claim 1 , wherein the amount of Nb 2 O 5 is 0.50-1.50 mol %.

24. A glass composition according to claim 1 , wherein the amount of Sb 2 O 3 is 0.05-0.30 mol %.

25. A glass composition according to claim 1 , wherein the amount of Sb 2 O 3 is 0.05-0.20 mol %.

26. A glass composition according to claim 1 , wherein the amount of Cr 2 O 3 is 0.01-0.10 mol %.

27. A glass composition according to claim 1 , wherein the amount of Cr 2 O 3 is 0.02-0.05 mol %.

28. A glass composition according to claim 1 , wherein the amount of CeO 2 is 0.00-0.20 mol %.

29. A glass composition according to claim 1 , wherein the amount of CeO 2 is 0.10-0.20 mol %.

30. A glass composition according to claim 1 , wherein the amount of Er 2 O 3 is 0.03-0.10 mol %.

31. A glass composition according to claim 1 , wherein the amount of Er 2 O 3 is 0.03-0.08 mol %.

32. A glass composition according to claim 1 , wherein the amount of Er 2 O 5 is 0.05-0.08 mol %.

33. A glass composition according to claim 1 , wherein the amount of Yb 2 O 3 is 6.00-10.00 mol %.

34. A glass composition according to claim 1 , wherein the amount of Yb 2 O 3 is 7.00-10.00 mol %.

35. A glass composition according to claim 1 , wherein the amount of R 2 O is 14.00-22.00 mol %.

36. A glass composition according to claim 1 , wherein the amount of R 2 O is 15.00-21.00 mol %.

37. A glass composition according to claim 1 , wherein the amount of the sum of Al 2 O 3 , SiO 2 , and Na 2 O is 22.00-28.00 mol %.

38. A glass composition according to claim 1 , wherein the amount of the sum of Al 2 O 3 , SiO 2 , and Na 2 O is 25.00-28.00 mol %.

39. In a solid state laser system comprising a solid gain medium and a pumping source, the improvement wherein said solid gain medium is a glass having a composition in accordance with claim 1 .

40. A method for generating a laser beam pulse comprising flashlamp pumping or diode pumping a glass composition according to claim 1 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 3, 2016
From: GEORGE, SIMI; VULLO, PAULA; KLIMEK, RONALD
To: SCHOTT CORPORATION
Reel/Frame 038442/0835 →
Continuity (1)
Related Publication 20170217828A1 · Aug 3, 2017