JPS57130487A - Setter for laser output - Google Patents

Setter for laser output

Info

Publication number
JPS57130487A
JPS57130487A JP1635781A JP1635781A JPS57130487A JP S57130487 A JPS57130487 A JP S57130487A JP 1635781 A JP1635781 A JP 1635781A JP 1635781 A JP1635781 A JP 1635781A JP S57130487 A JPS57130487 A JP S57130487A
Authority
JP
Japan
Prior art keywords
output
circuit
signals
current
laser
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
JP1635781A
Other languages
Japanese (ja)
Other versions
JPS6037637B2 (en
Inventor
Koshu Nagashima
Eiji Takasugi
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP56016357A priority Critical patent/JPS6037637B2/en
Publication of JPS57130487A publication Critical patent/JPS57130487A/en
Publication of JPS6037637B2 publication Critical patent/JPS6037637B2/en
Expired 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 stabilize output, and to ensure the safe operation of a current limit circuit feedback system by comparing output setting signals and laser output detecting signals and introducing a proper stable element between operating signals obtained and discharge currents while forming a current limit circuit. CONSTITUTION:The output of a power meter 4 is differentiated by means of a differentiation circuit 9, and the output is added to the output of the power meter 4 by means of an adding circuit 10. A time constant reaching a stationary state from a rise is shortened by the adding signals. The adding signals are compared with the output of an output setting section 7 is a subtracting circuit 6, and the subtracting signals are inputted to an integration circuit 11. The output of the circuit 11 is converted into discharge current value, which is the quantity of operation, in a current converting circuit 12, and controls a laser oscillator 1. The output of the output setting section 7 controls a current limiter 13, and the limit currents of the limiter 13 are supplied to a laser discharge tube in the oscillator 1.
JP56016357A 1981-02-06 1981-02-06 Laser output setting device Expired JPS6037637B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56016357A JPS6037637B2 (en) 1981-02-06 1981-02-06 Laser output setting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56016357A JPS6037637B2 (en) 1981-02-06 1981-02-06 Laser output setting device

Publications (2)

Publication Number Publication Date
JPS57130487A true JPS57130487A (en) 1982-08-12
JPS6037637B2 JPS6037637B2 (en) 1985-08-27

Family

ID=11914092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56016357A Expired JPS6037637B2 (en) 1981-02-06 1981-02-06 Laser output setting device

Country Status (1)

Country Link
JP (1) JPS6037637B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164282A (en) * 1985-01-16 1986-07-24 Hamamatsu Photonics Kk Excimer laser
JPS62151827A (en) * 1985-12-26 1987-07-06 Aloka Co Ltd Near infrared ray laser device
US4756175A (en) * 1986-03-28 1988-07-12 Mitsubishi Denki Kubushiki Kaisha Clamp mechanism of an electronic apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS526488A (en) * 1975-07-04 1977-01-18 Toshiba Corp Stabilizer for laser output

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS526488A (en) * 1975-07-04 1977-01-18 Toshiba Corp Stabilizer for laser output

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164282A (en) * 1985-01-16 1986-07-24 Hamamatsu Photonics Kk Excimer laser
JPH0334874B2 (en) * 1985-01-16 1991-05-24 Hamamatsu Photonics Kk
JPS62151827A (en) * 1985-12-26 1987-07-06 Aloka Co Ltd Near infrared ray laser device
JPS6343729B2 (en) * 1985-12-26 1988-09-01 Aloka
US4756175A (en) * 1986-03-28 1988-07-12 Mitsubishi Denki Kubushiki Kaisha Clamp mechanism of an electronic apparatus

Also Published As

Publication number Publication date
JPS6037637B2 (en) 1985-08-27

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