JPS57130487A - Setter for laser output - Google Patents
Setter for laser outputInfo
- 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
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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS526488A (en) * | 1975-07-04 | 1977-01-18 | Toshiba Corp | Stabilizer for laser output |
-
1981
- 1981-02-06 JP JP56016357A patent/JPS6037637B2/en not_active Expired
Patent Citations (1)
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)
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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