GB1426161A - Flowing-gas laser apparatus - Google Patents
Flowing-gas laser apparatusInfo
- Publication number
- GB1426161A GB1426161A GB897374A GB897374A GB1426161A GB 1426161 A GB1426161 A GB 1426161A GB 897374 A GB897374 A GB 897374A GB 897374 A GB897374 A GB 897374A GB 1426161 A GB1426161 A GB 1426161A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- circulated
- discharge region
- housing
- gas discharge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/097—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser
- H01S3/0979—Gas dynamic lasers, i.e. with expansion of the laser gas medium to supersonic flow speeds
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
1426161 Lasers AVCO EVERETT RESEARCH LABORATORY Inc 27 Feb 1974 [9 March 1973] 8973/74 Heading H1C To minimize atmospheric contamination of a gaseous active medium repeatedly circulated through a gas discharge region containing an optical resonator and electric field electrodes, the gas circulating arrangement 48, the electric field electrodes 36, and the resonator 28, are mounted within a single housing 12 sealed from atmospheric pressure and evacuated or pressurized to match the gas pressure in the gas discharge region. The gas, which may be Ar, Xn or Kr, or a mixture of CO 2 , and He, is circulated by a blower 60, and passes through an accelerating nozzle 62 into the gas discharge region for ionization by an ionizer 22 to produce a discharge between the field electrodes. The circulated gas is cooled by a heat exchanger coupled to a coolant source extemally of the housing. The housing includes an aerodynamic window 46 for the laser radiation and has sealed end doors 14, 16. The atmosphere within the housing is pump evacuated through a duct 50, and any loss of the circulated active medium from the gas discharge region is made up through a gas supply duct 54. In a modification, Fig. 2 (not shown), the ionizer is secured on the external surface of door 14 which includes an aperture for the ionizing radiation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US33951473A | 1973-03-09 | 1973-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1426161A true GB1426161A (en) | 1976-02-25 |
Family
ID=23329353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB897374A Expired GB1426161A (en) | 1973-03-09 | 1974-02-27 | Flowing-gas laser apparatus |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5755235B2 (en) |
| CA (1) | CA1017841A (en) |
| CH (1) | CH578268A5 (en) |
| DE (1) | DE2411192A1 (en) |
| FR (1) | FR2220897B1 (en) |
| GB (1) | GB1426161A (en) |
| IL (1) | IL44342A (en) |
| IT (1) | IT1008408B (en) |
| SE (1) | SE386320B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113054516A (en) * | 2021-03-11 | 2021-06-29 | 京东方科技集团股份有限公司 | Sealing device, laser and laser annealing equipment |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0001032B1 (en) * | 1977-08-18 | 1981-02-25 | ELTRO GmbH Gesellschaft für Strahlungstechnik | Gas laser with transversal excitation |
| DE3123049C2 (en) * | 1981-06-11 | 1983-07-21 | Eltro GmbH, Gesellschaft für Strahlungstechnik, 6900 Heidelberg | Method and device for operating a gas laser |
| US4751713A (en) * | 1987-07-31 | 1988-06-14 | Hughes Aircraft Company | Gas laser having a piezoelectric fan |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2039442A1 (en) * | 1969-08-08 | 1971-02-18 | Sylvania Electric Prod | High-power gas laser |
| US3702973A (en) * | 1970-09-17 | 1972-11-14 | Avco Corp | Laser or ozone generator in which a broad electron beam with a sustainer field produce a large area, uniform discharge |
| US3808553A (en) * | 1972-11-21 | 1974-04-30 | Avco Corp | Thermally stable laser resonator support assembly |
-
1974
- 1974-02-27 GB GB897374A patent/GB1426161A/en not_active Expired
- 1974-02-28 CA CA193,698A patent/CA1017841A/en not_active Expired
- 1974-03-04 IL IL44342A patent/IL44342A/en unknown
- 1974-03-04 SE SE7402806A patent/SE386320B/en not_active IP Right Cessation
- 1974-03-07 FR FR7407751A patent/FR2220897B1/fr not_active Expired
- 1974-03-08 JP JP49026463A patent/JPS5755235B2/ja not_active Expired
- 1974-03-08 CH CH332474A patent/CH578268A5/xx not_active IP Right Cessation
- 1974-03-08 IT IT49196/74A patent/IT1008408B/en active
- 1974-03-08 DE DE2411192A patent/DE2411192A1/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113054516A (en) * | 2021-03-11 | 2021-06-29 | 京东方科技集团股份有限公司 | Sealing device, laser and laser annealing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1008408B (en) | 1976-11-10 |
| IL44342A (en) | 1976-08-31 |
| IL44342A0 (en) | 1974-06-30 |
| FR2220897B1 (en) | 1978-12-29 |
| JPS49127592A (en) | 1974-12-06 |
| SE386320B (en) | 1976-08-02 |
| FR2220897A1 (en) | 1974-10-04 |
| CH578268A5 (en) | 1976-07-30 |
| DE2411192A1 (en) | 1974-09-12 |
| JPS5755235B2 (en) | 1982-11-22 |
| CA1017841A (en) | 1977-09-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |