FR2227659A2 - Cold cathode coaxial gas laser - has aluminium cathode which forms outer surface reducing cooling problems - Google Patents

Cold cathode coaxial gas laser - has aluminium cathode which forms outer surface reducing cooling problems

Info

Publication number
FR2227659A2
FR2227659A2 FR7315446A FR7315446A FR2227659A2 FR 2227659 A2 FR2227659 A2 FR 2227659A2 FR 7315446 A FR7315446 A FR 7315446A FR 7315446 A FR7315446 A FR 7315446A FR 2227659 A2 FR2227659 A2 FR 2227659A2
Authority
FR
France
Prior art keywords
cathode
tube
aluminium
capillary tube
gas laser
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.)
Granted
Application number
FR7315446A
Other languages
French (fr)
Other versions
FR2227659B2 (en
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7315446A priority Critical patent/FR2227659A2/en
Publication of FR2227659A2 publication Critical patent/FR2227659A2/en
Application granted granted Critical
Publication of FR2227659B2 publication Critical patent/FR2227659B2/fr
Granted 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
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/038—Electrodes, e.g. special shape, configuration or composition
    • 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
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/032—Constructional details of gas laser discharge tubes for confinement of the discharge, e.g. by special features of the discharge constricting tube
    • H01S3/0323—Constructional details of gas laser discharge tubes for confinement of the discharge, e.g. by special features of the discharge constricting tube by special features of the discharge constricting tube, e.g. capillary

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)

Abstract

The cathode is of tubular construction, the outer cylindrical surface being of aluminium acting as the cathode minimising cathode overheating effects. There is an insulated capillary tube extending beyond the cathode, passing axially through this tube. Annular anodes fit over this capillary tube which is terminated at both ends by semi-reflecting mirrors. Both ends of the tube are closed by aluminium discs supporting the capillary tube and the access point allowing evacuation and filling of the laser. Connection between the main volume of the laser and the capillary tube is by a hole in this tube towards one end.
FR7315446A 1973-04-27 1973-04-27 Cold cathode coaxial gas laser - has aluminium cathode which forms outer surface reducing cooling problems Granted FR2227659A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7315446A FR2227659A2 (en) 1973-04-27 1973-04-27 Cold cathode coaxial gas laser - has aluminium cathode which forms outer surface reducing cooling problems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7315446A FR2227659A2 (en) 1973-04-27 1973-04-27 Cold cathode coaxial gas laser - has aluminium cathode which forms outer surface reducing cooling problems

Publications (2)

Publication Number Publication Date
FR2227659A2 true FR2227659A2 (en) 1974-11-22
FR2227659B2 FR2227659B2 (en) 1977-04-29

Family

ID=9118608

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7315446A Granted FR2227659A2 (en) 1973-04-27 1973-04-27 Cold cathode coaxial gas laser - has aluminium cathode which forms outer surface reducing cooling problems

Country Status (1)

Country Link
FR (1) FR2227659A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057395A2 (en) * 1981-02-02 1982-08-11 TELDIX GmbH Gas laser

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057395A2 (en) * 1981-02-02 1982-08-11 TELDIX GmbH Gas laser
DE3103385A1 (en) * 1981-02-02 1982-08-26 Teldix Gmbh, 6900 Heidelberg GAS LASER
EP0057395A3 (en) * 1981-02-02 1982-09-01 Teldix Gmbh Gas laser

Also Published As

Publication number Publication date
FR2227659B2 (en) 1977-04-29

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