Patent US3891945A successfully refreshed from Google Patents.
US3891945A
Expired / Lapsed
US
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Configuration for efficient cooling and excitation of high average power solid state lasers
Assignee: United States Department of the Air Force
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Filing: 1973-09-20
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Granted: 1975-06-24
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Expires: 1993-09-20
Abstract
Abstract A high average power solid state laser including a lasing medium fabricated in the shape of a hollow, thin walled, circular tube with a flashlamp placed within the tube to provide optimum coupling and a liquid cooling system for removing heat from the inner and outer surfaces of the lasing medium and the flashlamp.
Inventors
- 👤 Howard Schlossberg
- 👤 David Milam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:44
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/04; H01S3/042; H01S3/09; H01S3/091; H01S3/0915; H01S3/092; H01S3/093; H01S3/025; H01S3/0407; H01S3/05; H01S3/06; H01S3/0602; H01S3/0608
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
122 words
A system for cooling and exciting high average power solid state lasers comprising: a hollow thin walled cylindrically shaped, solid state lasing medium; a coolant; a coolant containing means surrounding the exterior wall of the lasing medium and sealed thereto; a housing mounted in a sealed relationship to the interior wall of the lasing medium and at one end thereof; a housing extension mounted in a sealed relationship to the interior wall of the lasing medium and at the end remote from the said housing; removably attachable means in the housing and the housing extension for exciting the lasing medium, and means in the housing and housing extension for directing the flow of a coolant around the exciting means and lasing medium.
Claim 2
Independent Claim
122 words
A system for cooling and exciting high average power solid state lasers comprising: a hollow thin walled cylindrically shaped, solid state lasing medium; a coolant; a coolant containing means surrounding the exterior wall of the lasing medium and sealed thereto; a housing mounted in a sealed relationship to the interior wall of the lasing medium and at one end thereof; a housing extension mounted in a sealed relationship to the interior wall of the lasing medium and at the end remote from the said housing; removably attachable means in the housing and the housing extension for exciting the lasing medium, and means in the housing and housing extension for directing the flow of a coolant around the exciting means and lasing medium.
Claim 3
Dependent Claim
26 words
A system for cooling and exciting high average power solid state lasers according to claim 1 wherein the lasing medium is formed of glass and neodymium.
Claim 4
Dependent Claim
32 words
A system for cooling and exciting a high average power solid state laser according to claim 1 wherein the coolant containing means includes a metal water jacket and the coolant is water.
Claim 5
Dependent Claim
26 words
A system for cooling and exciting a high average power solid state laser according to claim 1 wherein the exciting means is an Xenon flash lamp.
Claim 6
Dependent Claim
25 words
A system for cooling and exiting a high average power solid state laser according to claim 1 wherein the flow directing means is a baffle.
Claim 7
Dependent Claim
29 words
A system for cooling and exciting a high average power solid state laser according to claim 1 including adjustable mirror means mounted on the housing for reflecting coherent light.
Claim 8
Dependent Claim
35 words
A system for cooling and exciting a high average power solid state laser according to claim 1 including electrically conductive means connected to the removably attachable means for providing electrical power to the lasing medium.
References Cited (Backward Citations)
US3451010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |