JPS6465892A - Laser output controlling apparatus - Google Patents

Laser output controlling apparatus

Info

Publication number
JPS6465892A
JPS6465892A JP62221978A JP22197887A JPS6465892A JP S6465892 A JPS6465892 A JP S6465892A JP 62221978 A JP62221978 A JP 62221978A JP 22197887 A JP22197887 A JP 22197887A JP S6465892 A JPS6465892 A JP S6465892A
Authority
JP
Japan
Prior art keywords
output
laser
command
sensor
laser 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
JP62221978A
Other languages
Japanese (ja)
Inventor
Tsukasa Matsuno
Akihiro Otani
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62221978A priority Critical patent/JPS6465892A/en
Publication of JPS6465892A publication Critical patent/JPS6465892A/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

Abstract

PURPOSE:To obtain a stable laser output which is free from effects of noise without speed of response being reduced, by making the ratio command to be variable which relates to both the momentary output and the time-average output of a laser beam sensor which control the output of a laser oscillator. CONSTITUTION:When a laser output command value 9 is constant, the time- average output of a laser beam sensor 8 completely controls the output of a laser oscillator 1 according to the command of a ratio varying unit 13 so that noise is prevented from affecting the output of the sensor 8 and the laser output is stably controlled. On the other hand, when the command value 9 varies, the unit 13 outputs a predetermined command temporarily and the momentary output of the sensor 8 completely controls the output of the oscillator 1 so that the laser output is controlled without speed of response being reduced.
JP62221978A 1987-09-07 1987-09-07 Laser output controlling apparatus Pending JPS6465892A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62221978A JPS6465892A (en) 1987-09-07 1987-09-07 Laser output controlling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62221978A JPS6465892A (en) 1987-09-07 1987-09-07 Laser output controlling apparatus

Publications (1)

Publication Number Publication Date
JPS6465892A true JPS6465892A (en) 1989-03-13

Family

ID=16775154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62221978A Pending JPS6465892A (en) 1987-09-07 1987-09-07 Laser output controlling apparatus

Country Status (1)

Country Link
JP (1) JPS6465892A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007180409A (en) * 2005-12-28 2007-07-12 Furukawa Electric Co Ltd:The Method and apparatus of optical amplification

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007180409A (en) * 2005-12-28 2007-07-12 Furukawa Electric Co Ltd:The Method and apparatus of optical amplification

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