GB1426161A - Flowing-gas laser apparatus - Google Patents

Flowing-gas laser apparatus

Info

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
Application number
GB897374A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Avco Everett Research Laboratory Inc
Original Assignee
Avco Everett Research Laboratory Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Avco Everett Research Laboratory Inc filed Critical Avco Everett Research Laboratory Inc
Publication of GB1426161A publication Critical patent/GB1426161A/en
Expired legal-status Critical Current

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

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.
GB897374A 1973-03-09 1974-02-27 Flowing-gas laser apparatus Expired GB1426161A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2057075A1 (en) * 1969-08-08 1971-05-07 Sylvania Electric Prod
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

Cited By (1)

* Cited by examiner, † Cited by third party
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
JPS5755235B2 (en) 1982-11-22
FR2220897A1 (en) 1974-10-04
IL44342A0 (en) 1974-06-30
CA1017841A (en) 1977-09-20
FR2220897B1 (en) 1978-12-29
IL44342A (en) 1976-08-31
CH578268A5 (en) 1976-07-30
DE2411192A1 (en) 1974-09-12
JPS49127592A (en) 1974-12-06
IT1008408B (en) 1976-11-10
SE386320B (en) 1976-08-02

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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