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JPS6431490A - Laser output controller - Google Patents

Laser output controller

Info

Publication number
JPS6431490A
JPS6431490A JP18857087A JP18857087A JPS6431490A JP S6431490 A JPS6431490 A JP S6431490A JP 18857087 A JP18857087 A JP 18857087A JP 18857087 A JP18857087 A JP 18857087A JP S6431490 A JPS6431490 A JP S6431490A
Authority
JP
Japan
Prior art keywords
output
lbd
laser
excitation
laser beam
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
JP18857087A
Other languages
Japanese (ja)
Inventor
Kiyobumi Sakura
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.)
Okuma Corp
Original Assignee
Okuma Machinery Works 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 Okuma Machinery Works Ltd filed Critical Okuma Machinery Works Ltd
Priority to JP18857087A priority Critical patent/JPS6431490A/en
Publication of JPS6431490A publication Critical patent/JPS6431490A/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
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
    • H01S3/131—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
    • H01S3/134—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation in gas lasers

Landscapes

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

Abstract

PURPOSE:To acquire an optimum laser beam for laser processing immediately and to realize precision processing by detecting part of laser beam output obtained by laser medium excitation and by performing comparison operation of the detected value and the laser output value commanded beforehand to control the excitation strength of the laser medium. CONSTITUTION:When transmitted laser beam LB 2 is diffracted by a diffraction grating 101, only n-order diffracted beam LBD+n that is adequately extinguished is injected to a thermopile 113 through a filter 111 and lens system 112, and the other diffracted beam LBD, LBD+ or -1, LBD+ or -2,... are absorbed in the inner wall of (sphere of) a black-body 103. Then the output of n-order diffracted beam LBD+n is detected by the thermopile 113 and converted to electric signal SDT to obtain control signal SC by comparison operation of the output signal SI commanded externally by use of a subtracter 11. By controlling the output current of an excitation power supply 8 based on the control signal SC, the excitation strength of carbon dioxide is controlled to keep the output of output laser beam LB 1 constant.
JP18857087A 1987-07-28 1987-07-28 Laser output controller Pending JPS6431490A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18857087A JPS6431490A (en) 1987-07-28 1987-07-28 Laser output controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18857087A JPS6431490A (en) 1987-07-28 1987-07-28 Laser output controller

Publications (1)

Publication Number Publication Date
JPS6431490A true JPS6431490A (en) 1989-02-01

Family

ID=16226000

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18857087A Pending JPS6431490A (en) 1987-07-28 1987-07-28 Laser output controller

Country Status (1)

Country Link
JP (1) JPS6431490A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06209137A (en) * 1992-11-18 1994-07-26 Matsushita Electric Ind Co Ltd Laser oscillator
JP2011215155A (en) * 2011-06-15 2011-10-27 Seiko Npc Corp Infrared sensor measuring device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS528838A (en) * 1975-07-10 1977-01-24 Agency Of Ind Science & Technol Light attenuator
JPS5719583A (en) * 1980-07-10 1982-02-01 Nobuyoshi Kuboyama Decompressive drying method and apparatus
JPS60217680A (en) * 1984-04-13 1985-10-31 Mitsubishi Electric Corp Laser output controller

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS528838A (en) * 1975-07-10 1977-01-24 Agency Of Ind Science & Technol Light attenuator
JPS5719583A (en) * 1980-07-10 1982-02-01 Nobuyoshi Kuboyama Decompressive drying method and apparatus
JPS60217680A (en) * 1984-04-13 1985-10-31 Mitsubishi Electric Corp Laser output controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06209137A (en) * 1992-11-18 1994-07-26 Matsushita Electric Ind Co Ltd Laser oscillator
JP2011215155A (en) * 2011-06-15 2011-10-27 Seiko Npc Corp Infrared sensor measuring device

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