JPS6425585A - Exchange of laser medium gas for gas laser - Google Patents

Exchange of laser medium gas for gas laser

Info

Publication number
JPS6425585A
JPS6425585A JP18120587A JP18120587A JPS6425585A JP S6425585 A JPS6425585 A JP S6425585A JP 18120587 A JP18120587 A JP 18120587A JP 18120587 A JP18120587 A JP 18120587A JP S6425585 A JPS6425585 A JP S6425585A
Authority
JP
Japan
Prior art keywords
gas
pressure
oscillation tube
torr
control valve
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.)
Pending
Application number
JP18120587A
Other languages
Japanese (ja)
Inventor
Toru Yachi
Naohiko Hatami
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP18120587A priority Critical patent/JPS6425585A/en
Publication of JPS6425585A publication Critical patent/JPS6425585A/en
Pending 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

Landscapes

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

Abstract

PURPOSE:To reduce gas exchange time and gas consumption by raising the pressure of the gas in an oscillation tube to more than the atmospheric pressure at downtime, and at starting, by exhausting one kind of gas of a plurality of gases composing laser medium gas to partial pressure necessary for operation and injecting the other gases to the partial pressure necessary for operation. CONSTITUTION:A second control valve 13 is opened at downtime and N2 gas is injected in an oscillation tube 1. The gas pressure in the oscillation tube 1 is constantly monitored by a gas sensor 2 and when it attains 850 Torr, the second control valve 13 is closed. Since the pressure 850 Torr is higher than the usual atmospheric pressure, foreign material in the atmosphere is prevented from entering the oscillation tube 1 at downtime. Then at starting, N2 gas is exhausted to leave only 37.8 Torr that is the necessary partial pressure in the laser medium gas at operating. After that, a control valve 11 is opened to inject CO2 gas and He gas in the oscillation tube 1. When the gas pressure in the oscillation tube 1 reaches 120 Torr, the first control valve 11 is closed. CO2, N2, and He gases are involved in the gas thereby providing the specified pressure needed for oscillation.
JP18120587A 1987-07-22 1987-07-22 Exchange of laser medium gas for gas laser Pending JPS6425585A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18120587A JPS6425585A (en) 1987-07-22 1987-07-22 Exchange of laser medium gas for gas laser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18120587A JPS6425585A (en) 1987-07-22 1987-07-22 Exchange of laser medium gas for gas laser

Publications (1)

Publication Number Publication Date
JPS6425585A true JPS6425585A (en) 1989-01-27

Family

ID=16096671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18120587A Pending JPS6425585A (en) 1987-07-22 1987-07-22 Exchange of laser medium gas for gas laser

Country Status (1)

Country Link
JP (1) JPS6425585A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06152031A (en) * 1992-11-06 1994-05-31 Jgc Corp Regeneration of gas for laser in carbon dioxide gas laser apparatus
CN104184039A (en) * 2014-08-07 2014-12-03 深圳市大族激光科技股份有限公司 System and method for quickly starting high-power CO2 laser
CN104836110A (en) * 2015-04-29 2015-08-12 东莞市鼎先激光科技股份有限公司 Method for rapidly stabilizing power of laser

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06152031A (en) * 1992-11-06 1994-05-31 Jgc Corp Regeneration of gas for laser in carbon dioxide gas laser apparatus
CN104184039A (en) * 2014-08-07 2014-12-03 深圳市大族激光科技股份有限公司 System and method for quickly starting high-power CO2 laser
CN104836110A (en) * 2015-04-29 2015-08-12 东莞市鼎先激光科技股份有限公司 Method for rapidly stabilizing power of laser
CN104836110B (en) * 2015-04-29 2018-08-07 东莞市鼎先激光科技股份有限公司 A kind of method of laser power fast and stable

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