JPS56150719A - Laser beam generator - Google Patents
Laser beam generatorInfo
- Publication number
- JPS56150719A JPS56150719A JP5354780A JP5354780A JPS56150719A JP S56150719 A JPS56150719 A JP S56150719A JP 5354780 A JP5354780 A JP 5354780A JP 5354780 A JP5354780 A JP 5354780A JP S56150719 A JPS56150719 A JP S56150719A
- Authority
- JP
- Japan
- Prior art keywords
- laser beam
- laser
- optical
- interference fringes
- temp
- 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
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
PURPOSE:To surely prevent the thermal failure of optical parts by irradiating the observation light of prescribed wavelength to the arbitrary position of the optical parts in a laser beam take-out part, and counting the number of the rings of the interference fringes passing this position thereby detecting the change in the temp. of said position. CONSTITUTION:Prior to outputting of laser beam 12, the laser output 14 from a laser beam generator 13 for observation is irradiated to the position slightly spaced from the center of an optical part 11, and said position is fixed. If the laser beam 12 is outputted by driving a laser oscillating part 10 after this, interference fringes are generated by the convex lens effect of the optical part 11. The interference fringes are received by a photodetector 15, and are photoelectrically converted. When the count values of a counter circuit 16 exceeds prescribed number, an alarm signal is emitted from an alarm generator 17, and consequently, a laser power source part 18 stops operating and the laser oscillating part 10 stops outputting the laser beam 12. Thereby, the temp. rise of the optical part 11 is averted and its thermal failure is prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5354780A JPS5841670B2 (en) | 1980-04-24 | 1980-04-24 | Laser light generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5354780A JPS5841670B2 (en) | 1980-04-24 | 1980-04-24 | Laser light generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56150719A true JPS56150719A (en) | 1981-11-21 |
| JPS5841670B2 JPS5841670B2 (en) | 1983-09-13 |
Family
ID=12945814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5354780A Expired JPS5841670B2 (en) | 1980-04-24 | 1980-04-24 | Laser light generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5841670B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59180456U (en) * | 1983-05-20 | 1984-12-01 | 三菱電機株式会社 | Mirror angle fluctuation monitoring device |
-
1980
- 1980-04-24 JP JP5354780A patent/JPS5841670B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59180456U (en) * | 1983-05-20 | 1984-12-01 | 三菱電機株式会社 | Mirror angle fluctuation monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5841670B2 (en) | 1983-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5238939A (en) | Optical coupler | |
| DE59711621D1 (en) | Optical smoke detector | |
| JPS56150719A (en) | Laser beam generator | |
| IL42930A (en) | Fire alarms | |
| JPS5687818A (en) | Reflex type position detector | |
| JPS5723914A (en) | Recorder | |
| FR2635000B1 (en) | LASER DEVICE, PARTICULARLY FOR THERAPEUTIC APPLICATIONS | |
| JPS5742842A (en) | Photoelectric smoke sensor | |
| JPS56104485A (en) | Semiconductor laser device | |
| JPS56162554A (en) | Optical amplifying repeater | |
| JPS5722511A (en) | Pulse encoder | |
| KR910008376A (en) | How to measure the surface quality of the lens | |
| JPS5644129A (en) | Optical recording and reproducing device | |
| ES8501552A1 (en) | Heat detector. | |
| JPS5390801A (en) | Semiconductor laser switching system | |
| JPS5472068A (en) | Optical processor | |
| JPS5296586A (en) | Light attenuation type smoke detector | |
| JPS6459021A (en) | Light wavelength measuring method | |
| SU922836A1 (en) | Smoke detector | |
| JPS6413426A (en) | Monochromatic light source dual luminous flux interferometer | |
| ATE153771T1 (en) | DEVICE FOR MEASURING AXIAL SPEED | |
| JPS5690642A (en) | Optical communication system | |
| JPS5588030A (en) | Photo branching method | |
| JPS51123583A (en) | Photo integrating circuit | |
| JPS53118145A (en) | Detecting method of light beam position |