JPS6481376A - Laser oscillator - Google Patents
Laser oscillatorInfo
- Publication number
- JPS6481376A JPS6481376A JP23919087A JP23919087A JPS6481376A JP S6481376 A JPS6481376 A JP S6481376A JP 23919087 A JP23919087 A JP 23919087A JP 23919087 A JP23919087 A JP 23919087A JP S6481376 A JPS6481376 A JP S6481376A
- Authority
- JP
- Japan
- Prior art keywords
- optical axis
- laser
- ultrasonic wave
- switch
- plane
- 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
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1123—Q-switching
- H01S3/117—Q-switching using intracavity acousto-optic devices
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
PURPOSE:To incorporate an isotropy in the output characteristic of an oscillation laser in a direction perpendicular to the optical axis of the laser by providing an ultrasonic wave Q switch so as to have the optical axis of a solid laser rod in its ultrasonic wave propagating direction in a plane parallel to the short axis of the ellipse of a condenser and to cross the optical axis at an angle for satisfying Bragg's condition with the optical axis. CONSTITUTION:An ultrasonic wave switch 7 is so disposed in a plane (plane Z-Y) parallel to the short axis of the ellipse of a condenser 6 including a laser optical axis Z as shown in Fig. 3 in one direction perpendicular to the propagation of its ultrasonic wave as to cross at an angle theta for satisfying Bragg's condition with the laser optical axis Z. The optically excited state of an actual YAG rod 4 has directional characteristic as shown in Fig. 2, and it is different from the directional characteristic of an output of the switch 7 mounted as above, the directional characteristic of the laser output of repetition pulse becomes maximum at the outputs in the directions X, Y at the position of the optical axis Z as shown in Fig. 4, and the attenuation trends of the outputs due to the deflection from the optical axis Z becomes substantially equal in the directions X and Y as shown by broken line circles.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23919087A JPH0626273B2 (en) | 1987-09-24 | 1987-09-24 | Laser oscillator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23919087A JPH0626273B2 (en) | 1987-09-24 | 1987-09-24 | Laser oscillator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6481376A true JPS6481376A (en) | 1989-03-27 |
JPH0626273B2 JPH0626273B2 (en) | 1994-04-06 |
Family
ID=17041054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23919087A Expired - Lifetime JPH0626273B2 (en) | 1987-09-24 | 1987-09-24 | Laser oscillator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0626273B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6879605B2 (en) | 2000-07-24 | 2005-04-12 | Laserfront Technologies, Inc. | Method and apparatus for performing pattern defect repair using Q-switched mode-locked pulse laser |
KR100681939B1 (en) * | 2001-05-18 | 2007-02-12 | 알로이즈 우벤 | Cooling device for a wind turbine generator |
US9337609B2 (en) | 2012-05-09 | 2016-05-10 | Mitsubishi Electric Corporation | Passively Q-switched element and passively Q-switched laser device |
-
1987
- 1987-09-24 JP JP23919087A patent/JPH0626273B2/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6879605B2 (en) | 2000-07-24 | 2005-04-12 | Laserfront Technologies, Inc. | Method and apparatus for performing pattern defect repair using Q-switched mode-locked pulse laser |
KR100681939B1 (en) * | 2001-05-18 | 2007-02-12 | 알로이즈 우벤 | Cooling device for a wind turbine generator |
US9337609B2 (en) | 2012-05-09 | 2016-05-10 | Mitsubishi Electric Corporation | Passively Q-switched element and passively Q-switched laser device |
Also Published As
Publication number | Publication date |
---|---|
JPH0626273B2 (en) | 1994-04-06 |
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