JPS5640290A - Gas laser - Google Patents

Gas laser

Info

Publication number
JPS5640290A
JPS5640290A JP11527079A JP11527079A JPS5640290A JP S5640290 A JPS5640290 A JP S5640290A JP 11527079 A JP11527079 A JP 11527079A JP 11527079 A JP11527079 A JP 11527079A JP S5640290 A JPS5640290 A JP S5640290A
Authority
JP
Japan
Prior art keywords
laser
cathode
discharge
gas
coaxial
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
JP11527079A
Other languages
Japanese (ja)
Other versions
JPS5917986B2 (en
Inventor
Sei Takemori
Hiroyuki Sugawara
Koji Kuwabara
Toshiji Shirokura
Hiroharu Sasaki
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11527079A priority Critical patent/JPS5917986B2/en
Publication of JPS5640290A publication Critical patent/JPS5640290A/en
Publication of JPS5917986B2 publication Critical patent/JPS5917986B2/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
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/036—Means for obtaining or maintaining the desired gas pressure within the tube, e.g. by gettering, replenishing; Means for circulating the gas, e.g. for equalising the pressure within the tube
    • 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
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/07—Construction or shape of active medium consisting of a plurality of parts, e.g. segments
    • H01S3/073—Gas lasers comprising separate discharge sections in one cavity, e.g. hybrid lasers

Landscapes

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

Abstract

PURPOSE:To obtain a stable glow discharge even at a large discharge injection power by forming the discharging surface of the cathode of a gas laser tube by the inner surface of a cylinder almost coaxial with the laser tube axis, and prescribing the length of the discharge surface in the direction of the gas flow: 0.5-2.0mm.. CONSTITUTION:Two laser tubes 1 each having an anode 2 and cathode 3 are combined together on the cathode 3 side. One terminal of a high-voltage DC power source 5 is connected to the cathodes 3 through ballast resistors 4, and the other terminal earthed to the anodes 2. Moreover, a concave reflecting mirror 10 is provided at one end of the laser tubes 1, and a plane output mirror 11 at the other end. A mixture gas 14 of CO2, N2 and He is supplied for the laser tubes 1 by using a fan 13 to produce a plasma 9. Thus, a laser output light 12 is radiated from the output mirror 11 side. In the constitution, a discharging surface 7 of each cathode 3 is formed by the inner surface of a cylinder almost coaxial with the tube axis, and the length t of the discharging surface 7 in the direction of the gas flow is prescribed: 0.5-2.0mm.. Thus, the flow discharge is stabilized.
JP11527079A 1979-09-10 1979-09-10 gas laser equipment Expired JPS5917986B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11527079A JPS5917986B2 (en) 1979-09-10 1979-09-10 gas laser equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11527079A JPS5917986B2 (en) 1979-09-10 1979-09-10 gas laser equipment

Publications (2)

Publication Number Publication Date
JPS5640290A true JPS5640290A (en) 1981-04-16
JPS5917986B2 JPS5917986B2 (en) 1984-04-24

Family

ID=14658502

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11527079A Expired JPS5917986B2 (en) 1979-09-10 1979-09-10 gas laser equipment

Country Status (1)

Country Link
JP (1) JPS5917986B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5891690A (en) * 1981-11-27 1983-05-31 Hitachi Ltd Generator for gas laser
EP0130346A2 (en) * 1983-07-02 1985-01-09 Messer Griesheim Gmbh Fast axial flow gas transport laser
FR2588700A2 (en) * 1984-11-29 1987-04-17 Comp Generale Electricite Gas flux laser generator and method of operating this generator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0339598U (en) * 1989-08-30 1991-04-16

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5891690A (en) * 1981-11-27 1983-05-31 Hitachi Ltd Generator for gas laser
JPS6318871B2 (en) * 1981-11-27 1988-04-20 Hitachi Ltd
EP0130346A2 (en) * 1983-07-02 1985-01-09 Messer Griesheim Gmbh Fast axial flow gas transport laser
FR2588700A2 (en) * 1984-11-29 1987-04-17 Comp Generale Electricite Gas flux laser generator and method of operating this generator

Also Published As

Publication number Publication date
JPS5917986B2 (en) 1984-04-24

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