JPS6445185A - Device for preventing laser light output variation - Google Patents
Device for preventing laser light output variationInfo
- Publication number
- JPS6445185A JPS6445185A JP62202096A JP20209687A JPS6445185A JP S6445185 A JPS6445185 A JP S6445185A JP 62202096 A JP62202096 A JP 62202096A JP 20209687 A JP20209687 A JP 20209687A JP S6445185 A JPS6445185 A JP S6445185A
- Authority
- JP
- Japan
- Prior art keywords
- polarized light
- output variation
- converted
- circular
- wavelength plate
- 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 prevent the output variation of a laser light by providing a 1/4- wavelength plate for converting the S-polarized light and P-polarized light emitted from a laser tube to a circular polarized light respectively, and an optical element at which the converted circular polarized light is reflecting. CONSTITUTION:Each of the S-polarized light and P-polarized light emitted from a laser tube 111 is converted to a circular polarized light by a 1/4-wavelength plate 113, and that circular polarized light is reflected at or transmitted through an optical element 115. That is, the S-polarized light and P-polarized light are emitted from the laser tube 111 which has a resonance length providing one or two longitudinal modes, and each light is converted to a circular polarized light by the 1/4-wavelength plate 113. The circular polarized light converted by the 1/4-wavelength plate 113 is reflected by or transmitted through the optical element 115. By such conversion of the S-polarized light and P-polarized light emitted from the laser tube 111 to a circular polarized light, the output variation thereof is prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62202096A JPH0795613B2 (en) | 1987-08-13 | 1987-08-13 | Laser light output fluctuation prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62202096A JPH0795613B2 (en) | 1987-08-13 | 1987-08-13 | Laser light output fluctuation prevention device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6445185A true JPS6445185A (en) | 1989-02-17 |
| JPH0795613B2 JPH0795613B2 (en) | 1995-10-11 |
Family
ID=16451898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62202096A Expired - Fee Related JPH0795613B2 (en) | 1987-08-13 | 1987-08-13 | Laser light output fluctuation prevention device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0795613B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5710284A (en) * | 1980-06-19 | 1982-01-19 | Ricoh Co Ltd | Laser device |
| JPS5717167U (en) * | 1980-07-03 | 1982-01-28 |
-
1987
- 1987-08-13 JP JP62202096A patent/JPH0795613B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5710284A (en) * | 1980-06-19 | 1982-01-19 | Ricoh Co Ltd | Laser device |
| JPS5717167U (en) * | 1980-07-03 | 1982-01-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0795613B2 (en) | 1995-10-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |