JPS558017A - Laser ray output stabilizing method - Google Patents

Laser ray output stabilizing method

Info

Publication number
JPS558017A
JPS558017A JP7958278A JP7958278A JPS558017A JP S558017 A JPS558017 A JP S558017A JP 7958278 A JP7958278 A JP 7958278A JP 7958278 A JP7958278 A JP 7958278A JP S558017 A JPS558017 A JP S558017A
Authority
JP
Japan
Prior art keywords
output
light
laser ray
current source
ray output
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
JP7958278A
Other languages
Japanese (ja)
Inventor
Toshikatsu Kimura
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP7958278A priority Critical patent/JPS558017A/en
Publication of JPS558017A publication Critical patent/JPS558017A/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 obtain a constant laser ray at all times by controlling a fixed current source in such a manner as to measure light on rear sides of reflectors of output side and reflecting side. CONSTITUTION:A light-sensing element 7 is arranged on rear side of a reflector 5 opposite to output side, and a part of leaser ray leaking from the reflector 5 is received by the light-sensing element. Output of the element 7 is amplified by an amplifier 8 to control a variable fixed current source 6. At the current source 6, output of an amplifier 8 is compared with a base voltage 11 to control a transistor 9 and a load 12 (electrodes 3 and 3'). It is possible, in this manner, to obtain a stabilized laser ray without deteriorating output light.
JP7958278A 1978-06-30 1978-06-30 Laser ray output stabilizing method Pending JPS558017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7958278A JPS558017A (en) 1978-06-30 1978-06-30 Laser ray output stabilizing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7958278A JPS558017A (en) 1978-06-30 1978-06-30 Laser ray output stabilizing method

Publications (1)

Publication Number Publication Date
JPS558017A true JPS558017A (en) 1980-01-21

Family

ID=13693970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7958278A Pending JPS558017A (en) 1978-06-30 1978-06-30 Laser ray output stabilizing method

Country Status (1)

Country Link
JP (1) JPS558017A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990008415A1 (en) * 1989-01-23 1990-07-26 Fanuc Ltd High-frequency discharge-excited laser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990008415A1 (en) * 1989-01-23 1990-07-26 Fanuc Ltd High-frequency discharge-excited laser

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