US3631362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Face-pumped, face-cooled laser device
Assignee: General Electric Co
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Filing: 1968-08-27
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Granted: 1971-12-28
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Expires: 1988-08-27
Abstract
Abstract A face-pumped laser device utilizes one or more thin planar laser elements which have major surfaces thereof in physical contact with a flowing coolant having an index of refraction near that of the laser elements. The arrangement allows increased pulse repetition rates while also maintaining uniform optical properties and relaxing wavelength tolerance requirements of the laser elements.
Inventors
- 👤 Joseph C Almasi
- 👤 William S Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:27
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/23; H01S3/2308; H01S3/2316; H01S3/02; H01S3/04; H01S3/042; H01S3/05; H01S3/06; H01S3/0602; H01S3/0604; H01S3/09; H01S3/091; H01S3/0915; H01S3/092; H01S3/093; H01S3/2325; H01S3/2333; H01S3/0407
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
18 words
The laser device of claim 1 including conduits for providing inlet and outlet passages for said cooling liquid.
Claim 2
Dependent Claim
89 words
The laser device of claim 1 including first and second windows which are characterized by being optically transparent to said electromagnetic radiation of pumping wavelengths and to said coherent electromagnetic radiation, said first window mounted between said pumping means and said plurality of said planar laser elements, said second window mounted adjacent said plurality of planar laser elements on the side thereof opposite from said first window, said first and second windows having major surfaces in a plane substantially parallel to said major surfaces of said planar laser elements.
Claim 3
Dependent Claim
28 words
The laser device of claim 3 wherein said major surfaces of said windows adjacent said plurality of said planar members are in physical contact with said cooling liquid.
Claim 4
Dependent Claim
26 words
The laser device of claim 4 wherein said optical means is a coating of dielectric material on one of said major surfaces of said First window.
Claim 5
Dependent Claim
48 words
The laser device of claim 4 wherein said optical means comprises a coating of dielectric material on one of said major surfaces of said first window and an optical member positioned adjacent said plurality of said planar laser elements on the side thereof opposite from said first window.
Claim 6
Dependent Claim
38 words
The laser device of claim 6 wherein said coating on one of said major surface of said first window is totally reflecting to said coherent radiation and wherein said optical member is partially reflecting to said coherent radiation.
Claim 7
Dependent Claim
26 words
The laser device of claim 7 wherein said optical member is a coating of dielectric material on one of said major surfaces of said second window.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |