JPS6473686A - Laser device - Google Patents
Laser deviceInfo
- Publication number
- JPS6473686A JPS6473686A JP62230715A JP23071587A JPS6473686A JP S6473686 A JPS6473686 A JP S6473686A JP 62230715 A JP62230715 A JP 62230715A JP 23071587 A JP23071587 A JP 23071587A JP S6473686 A JPS6473686 A JP S6473686A
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- laser beam
- phase
- laser beams
- window
- 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
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08059—Constructional details of the reflector, e.g. shape
- H01S3/08068—Holes; Stepped surface; Special cross-section
-
- 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
- H01S3/02—Constructional details
- H01S3/03—Constructional details of gas laser discharge tubes
- H01S3/034—Optical devices within, or forming part of, the tube, e.g. windows, mirrors
-
- 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
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08081—Unstable resonators
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
PURPOSE:To extract a laser beam of high quality by a method wherein two laser beams reflected at a peripheral part of a mirror and at a magnifying mirror are extracted to the outside after their mutual phase differences have been offset at an external face on the laser beam radiation side of the magnifying mirror and the peripheral part of the mirror. CONSTITUTION:Laser beams 70, 71 are extracted to the outside after passing through parts of two kinds of coating films 20, 5 out of a window mirror 4. Because a phase shift given to the laser beams to be passed through differs according to the kinds of the coating films, a phase difference is caused between the laser beams 70, 71 as long as a stepped part 200 does not exist and a thickness of the window mirror 4 is definite. For example, if a phase given to the laser beam passing through the partially reflecting film 20 of the window mirror 4 is advanced by delta as compared with a phase given to the laser beam passing through the reflection-free coating film 5, a depth d of the stepped part 200 used to correct this can be found from a formula: (n-1)d/lambda=delta. In this formula, (n) represents the refractive index of the material for the window mirror 4 and lambda represents the wavelength of the laser beam.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62230715A JPS6473686A (en) | 1987-09-14 | 1987-09-14 | Laser device |
KR1019870013766A KR910002229B1 (en) | 1986-12-08 | 1987-12-03 | Laser device |
DE8787118176T DE3764783D1 (en) | 1986-12-08 | 1987-12-08 | LASER APPARATUS. |
EP87118176A EP0271809B1 (en) | 1986-12-08 | 1987-12-08 | Laser apparatus |
US07/432,357 US5058123A (en) | 1986-12-08 | 1989-11-08 | Laser apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62230715A JPS6473686A (en) | 1987-09-14 | 1987-09-14 | Laser device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6473686A true JPS6473686A (en) | 1989-03-17 |
JPH0463557B2 JPH0463557B2 (en) | 1992-10-12 |
Family
ID=16912172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62230715A Granted JPS6473686A (en) | 1986-12-08 | 1987-09-14 | Laser device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6473686A (en) |
-
1987
- 1987-09-14 JP JP62230715A patent/JPS6473686A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0463557B2 (en) | 1992-10-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |