US3675155A
Expired / Lapsed
US
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Sensitizing luminescence of erbium with molybdenum
Assignee: American Optical Corp
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Filing: 1970-11-03
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Granted: 1972-07-04
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Expires: 1990-11-03
Abstract
Abstract The luminescence of an erbium or erbium-ytterbium doped glass laser rod is sensitized by surrounding the laser rod with a glass cladding containing trivalent molybdenum ions. The trivalent molybdenum ions in the cladding absorb pumping light energy in a wavelength region in which trivalent erbium ions have no strong absorption bands, and the trivalent molybdenum ions fluoresce at a wavelength within an absorption band of the trivalent erbium ions, thereby increasing the pumping light energy absorbed by the erbium laser rod.
Inventors
- 👤 Robert J Landry
- 👤 Elias Snitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:43
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/06; H01S3/0602; H01S3/0612; H01S3/14; H01S3/16; H01S3/17
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
40 words
A laser structure according to claim 1, in which the active laser ions are trivalent erbium ions, and a third quantity of trivalent ytterbium ions are suitable contained in close proximity to both the trivalent molybdenum and trivalent erbium ions.
Claim 2
Dependent Claim
22 words
A laser structure according to claim 1, in which the fluorescent converter is formed as a tube disposed about the laser rod.
Claim 3
Dependent Claim
35 words
A laser structure according to claim 3, in which the fluorescent converter tube is disposed in a surrounding contacting relation to the side wall portions of the laser rod throughout substantially the entire length thereof.
Claim 4
Dependent Claim
18 words
A laser structure according to claim 4, wherein the cladding glass contains approximately 0.5 weight percent of MoO3.
Claim 5
Dependent Claim
24 words
A laser structure according to claim 5, wherein the cladding glass contains a major portion of Al(PO3)3 with minor portions of ZnO and Sb2O3.
Claim 6
Dependent Claim
31 words
A laser structure according to claim 6, wherein the cladding glass consists of essentially the following constituents given in weight percent. Al(PO3)3 86.69 ZnO 9.85 Sb2O3 1.97 MoO3 0.50 Carbon 0.99
References Cited (Backward Citations)
US3534287A
Cited
US3590004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |