JPS6442190A - Gas laser apparatus - Google Patents

Gas laser apparatus

Info

Publication number
JPS6442190A
JPS6442190A JP19825687A JP19825687A JPS6442190A JP S6442190 A JPS6442190 A JP S6442190A JP 19825687 A JP19825687 A JP 19825687A JP 19825687 A JP19825687 A JP 19825687A JP S6442190 A JPS6442190 A JP S6442190A
Authority
JP
Japan
Prior art keywords
gas
pressure
laser
laser medium
medium gas
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
JP19825687A
Other languages
Japanese (ja)
Other versions
JP2657808B2 (en
Inventor
Toru Yachi
Kazu Mizoguchi
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 JP62198256A priority Critical patent/JP2657808B2/en
Publication of JPS6442190A publication Critical patent/JPS6442190A/en
Application granted granted Critical
Publication of JP2657808B2 publication Critical patent/JP2657808B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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 facilitate maintaining of the pressure of laser medium gas in a laser oscillator always at a constant value by a method wherein the actual gas pressure in the laser oscillator and an instructed gas pressure value which is a reference are compared with each other and the exhaust rate of a gas exhauster is controlled continuously. CONSTITUTION:The actual pressure P2 of laser medium gas in a laser oscillation tube 3 is detected by a gas pressure detector 13 and a gas pressure detection signal 14 is supplied to an arithmetic unit 15. The gas pressure detection signal 14 and a gas pressure instruction signal 17, i.e. the actual pressure P2 of the laser medium gas and the predetermined pressure P1 of the laser medium gas, are compared with each other and processed in the arithmetic unit 15 and an exhaust speed instruction signal 18 is supplied to a gas exhauster 12 in accordance with the ratio between the signals 14 and 17 and the exhaust rate is continuously controlled to be increased or decreased to maintain the pressure of the laser medium gas in the laser oscillation tube 3 always at a constant value. With this constitution, even if the temperature of the laser medium gas is varied, the pressure of the laser medium gas can be controlled to be constant and ripples can be avoided, so that the laser beam output is not influenced by the ripple.
JP62198256A 1987-08-10 1987-08-10 Gas laser device Expired - Lifetime JP2657808B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62198256A JP2657808B2 (en) 1987-08-10 1987-08-10 Gas laser device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62198256A JP2657808B2 (en) 1987-08-10 1987-08-10 Gas laser device

Publications (2)

Publication Number Publication Date
JPS6442190A true JPS6442190A (en) 1989-02-14
JP2657808B2 JP2657808B2 (en) 1997-09-30

Family

ID=16388100

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62198256A Expired - Lifetime JP2657808B2 (en) 1987-08-10 1987-08-10 Gas laser device

Country Status (1)

Country Link
JP (1) JP2657808B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02144979A (en) * 1988-11-26 1990-06-04 Fanuc Ltd Gas laser apparatus
US7046705B2 (en) 2001-09-28 2006-05-16 Matsushita Electric Industrial Co., Ltd. Gas laser transmitter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6052081A (en) * 1983-09-01 1985-03-23 Mitsubishi Electric Corp Gas exchange device of carbonic acid gas laser oscillator
JPS6192075U (en) * 1984-11-21 1986-06-14
JPS62282478A (en) * 1986-05-31 1987-12-08 Toshiba Corp Gas laser oscillator
JPS6350087A (en) * 1986-08-20 1988-03-02 Matsushita Electric Ind Co Ltd Gas laser device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6052081A (en) * 1983-09-01 1985-03-23 Mitsubishi Electric Corp Gas exchange device of carbonic acid gas laser oscillator
JPS6192075U (en) * 1984-11-21 1986-06-14
JPS62282478A (en) * 1986-05-31 1987-12-08 Toshiba Corp Gas laser oscillator
JPS6350087A (en) * 1986-08-20 1988-03-02 Matsushita Electric Ind Co Ltd Gas laser device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02144979A (en) * 1988-11-26 1990-06-04 Fanuc Ltd Gas laser apparatus
US7046705B2 (en) 2001-09-28 2006-05-16 Matsushita Electric Industrial Co., Ltd. Gas laser transmitter

Also Published As

Publication number Publication date
JP2657808B2 (en) 1997-09-30

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