US4136317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
14 And 16 micron, optically pumped, gas dynamic CO2 laser
Assignee: United States Department of the Navy
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Filing: 1977-04-13
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Granted: 1979-01-23
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Expires: 1997-04-13
Abstract
Abstract An electric discharge gas-dynamic laser (EDGDL) providing laser action in CO 2 at 16 microns between the (02°0) and (01'0) levels as well as between the (10°0) and (01'0) levels at 14 microns. A 9μ or 10μ saturating pulse equilibrates the (001) level with either the (02°0) or (10°0) level and creates the 14μ or 16μ inversion. Extraction efficiencies of 50% have been achieved. Repetition frequencies of 200Hz have been achieved using a repetitively Q-switched cavity.
Inventors
- 👤 Joseph A. Stregack
- 👤 Thomas J. Manuccia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:06
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/14; H01S3/22; H01S3/223; H01S3/2232; H01S3/09; H01S3/097; H01S3/0979
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A 16 micron gas-dynamic CO 2 laser which comprises: an electric discharge gas dynamic CO 2 laser; means for pumping said CO 2 laser; a D 2 -A r vibrationally excitable gas mixture mixed with CO 2 in said laser to produce a 9μ transition in said gas dynamic CO 2 laser resonant cavity; and means for saturation of said 9μ transition in said gas dynamic CO 2 laser to ensure 16μ lasing in said resonant cavity; said means for saturation of said 9μ transition in said gas dynamic CO 2 laser including a double discharge CO 2 -TEA laser cell, a low-pressure continuous wave gain cell and an absorption cell in a common resonator.
Claim 2
Dependent Claim
115 words
A 16 micron gas-dynamic CO 2 laser which comprises: an electric discharge gas dynamic CO 2 laser; means for pumping said CO 2 laser; a D 2 -A r vibrationally excitable gas mixture mixed with CO 2 in said laser to produce a 9μ transition in said gas dynamic CO 2 laser resonant cavity; and means for saturation of said 9μ transition in said gas dynamic CO 2 laser to ensure 16μ lasing in said resonant cavity; said means for saturation of said 9μ transition in said gas dynamic CO 2 laser including a double discharge CO 2 -TEA laser cell, a low-pressure continuous wave gain cell and an absorption cell in a common resonator.
References Cited (Backward Citations)
US4053851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-22 | 1982-07-24 | 1983-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-22 | 1986-07-24 | 1987-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-22 | 1990-07-24 | 1991-01-23 | $7700.00 | Window Closed / Lapsed |