US3702976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
All glass peripherally multi-arcuate disc laser
Assignee: American Optical Corp
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Filing: 1971-11-11
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Granted: 1972-11-14
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Expires: 1991-11-11
Abstract
Abstract A rectangular-disc laser structure of all-glass support construction. A segmented neodymium-doped glass laser rod is supported in a glass tubing and is designed to permit fluid coolant flow within the tubing and amongst the rod segments. The non-laserable glass supporting means consists of samarium-doped cladding glass to reduce interference by ''''off axis'''' spontaneously emitted light. The fluid coolant has an index of refraction which matches that of the laser glass to achieve a high efficiency. The absence of metallic supporting means minimizes the chance of metallic decomposition under the influence of pump light. A peripherally multi-arcuate laser structure utilizing a four-flashtube closewrap is disclosed where part of each flashtube water jacket surface mates with one of the multi-arcuate tubing surfaces.
Inventors
- 👤 Charles G Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:03
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/06; H01S3/07; H01S3/02; H01S3/04; H01S3/042; H01S3/09; H01S3/091; H01S3/0915; H01S3/092; H01S3/093; H01S3/025; H01S3/0407; H01S3/0602; H01S3/0604
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
145 words
A light-transparent laser structure comprising linear glass tubing of multi-arcuate crossection said tubing arranged to contain flow of a fluid, a plurality of glass plates, each of said plates containing at least a portion of laser material and being close fitted within the inside surface of said multiarcuate tubing and arranged to span the hollow of said tubing, there being an aperture near an edge of each of said plates which are substantially equally spaced from each other, sequential plate apertures arranged to cause tortuous flow of said fluid through said tubing, said flow arranged to cool each of said plates, and a plurality of flashtubes externally adjacent said tubing, a portion of the surface of each of said flashtubes arranged to be fitted contiguously with a portion of the external surface of said multi-arcuate tubing for providing close-wrap, efficient, light energization to said plates.
Claim 2
Dependent Claim
145 words
A light-transparent laser structure comprising linear glass tubing of multi-arcuate crossection said tubing arranged to contain flow of a fluid, a plurality of glass plates, each of said plates containing at least a portion of laser material and being close fitted within the inside surface of said multiarcuate tubing and arranged to span the hollow of said tubing, there being an aperture near an edge of each of said plates which are substantially equally spaced from each other, sequential plate apertures arranged to cause tortuous flow of said fluid through said tubing, said flow arranged to cool each of said plates, and a plurality of flashtubes externally adjacent said tubing, a portion of the surface of each of said flashtubes arranged to be fitted contiguously with a portion of the external surface of said multi-arcuate tubing for providing close-wrap, efficient, light energization to said plates.
Claim 3
Dependent Claim
15 words
A laser structure as recited in claim 1 wherein said plurality of flashtubes is four.
Claim 4
Dependent Claim
37 words
A laser structure as recited in claim 2 wherein each of said plates comprises a disc of laser glass and an apertured glass member having four webs, said member encompassing and supporting said disc within said tubing.
Claim 5
Dependent Claim
17 words
A laser structure as recited in claim 3 wherein said disc of laser glass is neodymium-doped glass.
Claim 6
Dependent Claim
15 words
A laser structure as recited in claim 1 wherein said tubing is samarium doped glass.
Claim 7
Dependent Claim
15 words
A laser structure as recited in claim 3 wherein said member is samarium doped glass.
Claim 8
Dependent Claim
22 words
A laser structure as recited in claim 1 wherein said fluid is a liquid with an index of refraction of approximately 1.51.
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) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |