Patent US3600702A successfully refreshed from Google Patents.
US3600702A
Expired / Lapsed
US
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Diffuse optical pumping system for lasers
Assignee: Union Carbide Corp
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Filing: 1968-07-10
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Granted: 1971-08-17
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Expires: 1988-07-10
Abstract
Abstract A diffuse reflector in the form of a flexible ceramic cloth material is provided in a process for light pumping a laser. The diffuse reflector encloses a laser medium and light source to increase the optical coupling between the light source and medium. The flexible nature of the cloth permits it to snugly engage about the light source and medium and conform to the geometries thereof in such a manner as to define a geometrical enclosure in which the medium constitutes substantially the only light sink for radiation from the light source.
Inventors
- 👤 Leonard Charles De Bendedictis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:35
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/09; H01S3/091; H01S3/0915; H01S3/092; H01S3/093
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
82 words
A process for effecting diffuse optical pumping of a laser medium from a light pump source, comprising the steps of: providing a flexible ceramic cloth material of a reflective metal oxide defining a diffuse reflector; and surrounding the laser medium and light pump source with said cloth material so that said cloth conforms substantially to the geometry of the laser medium and light pump source to provide a diffuse reflecting surface to thereby increase the efficiency of optical coupling in said laser.
Claim 2
Dependent Claim
82 words
A process for effecting diffuse optical pumping of a laser medium from a light pump source, comprising the steps of: providing a flexible ceramic cloth material of a reflective metal oxide defining a diffuse reflector; and surrounding the laser medium and light pump source with said cloth material so that said cloth conforms substantially to the geometry of the laser medium and light pump source to provide a diffuse reflecting surface to thereby increase the efficiency of optical coupling in said laser.
Claim 3
Dependent Claim
35 words
The process of claim 1, including the step of providing in said cloth material cutout portions to accommodate lead-in portions of said light pump source so that a relatively tight optical enclosure can be defined.
Claim 4
Dependent Claim
123 words
A process for effecting diffuse optical pumping in a laser system including a laser medium of a first given geometrical configuration; and a light source of a second given geometrical configuration optically coupled to said laser medium to pump light energy into said medium; said process comprising the steps of: cutting a diffuse reflector in the form of a flexible ceramic cloth material of a reflective metal oxide to provide a desired geometrical pattern; and wrapping said material around said laser medium and light source so that it surrounds and conforms substantially to the geometries of said laser medium and light source to define a geometrical enclosure in which said medium constitutes substantially the only light sink for radiation from said light sOurce.
Claim 5
Dependent Claim
123 words
A process for effecting diffuse optical pumping in a laser system including a laser medium of a first given geometrical configuration; and a light source of a second given geometrical configuration optically coupled to said laser medium to pump light energy into said medium; said process comprising the steps of: cutting a diffuse reflector in the form of a flexible ceramic cloth material of a reflective metal oxide to provide a desired geometrical pattern; and wrapping said material around said laser medium and light source so that it surrounds and conforms substantially to the geometries of said laser medium and light source to define a geometrical enclosure in which said medium constitutes substantially the only light sink for radiation from said light sOurce.
Claim 6
Dependent Claim
26 words
The process of claim 3, in which said cloth material is permeable to cooling fluid so that the resulting tight optical enclosure can be readily cooled.
Claim 7
Dependent Claim
12 words
The process of claim 3, in which said metal oxide comprises alumina.
Claim 8
Dependent Claim
12 words
The process of claim 3, in which said metal oxide comprises zirconia.
Claim 9
Dependent Claim
77 words
The process of claim 3, in which said laser medium comprises a solid host crystal rod and said light source comprises a helical flash lamp passing about said rod, said cloth material being wrapped about said helical flash lamp in physical contact therewith and including the step providing cutout portions to pass the end portions of said flash lamp, said cloth exhibiting slight draping between adjacent turns of the helix to define a substantially tight optical enclosure.
References Cited (Backward Citations)
US3385915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |