GB1224318A - Improvements in or relating to lasers - Google Patents
Improvements in or relating to lasersInfo
- Publication number
- GB1224318A GB1224318A GB3042967A GB3042967A GB1224318A GB 1224318 A GB1224318 A GB 1224318A GB 3042967 A GB3042967 A GB 3042967A GB 3042967 A GB3042967 A GB 3042967A GB 1224318 A GB1224318 A GB 1224318A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- active medium
- birefringent plate
- birefringent
- pockel
- 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.)
- Expired
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
- H01S3/115—Q-switching using intracavity electro-optic devices
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
1,224,318. Lasers. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 27 June, 1968 [30 June, 1967], No. 30429/67. Heading HlC. In a Q-switched laser which produces an output of narrow spectral width, a dichroic crystal active medium 1, e.g. ruby, is pumped by a helical xenon flash tube 2 and is located between flat external reflectors 3, 4, Q-switching being effected by a Pockel's cell 5, while the spectral width is reduced by a birefringent plate 6 which functions as a frequency filter. The Pockel's cell is normally electrically stressed so as to be a #/4 plate forming a Q-spoiling element, a giant pulse occurring when the stress potential is removed. The birefringent plate may be a calcite plate the optic axis of which is oriented at 45 degrees to the optical axis of the ruby or other dichrioc crystal active medium. In operation, plane polarized light is emitted by the active medium and is converted into arbitrary elliptical polarization by the birefringent plate, except for those wavelengths for which the difference in optical path for the ordinary and extraordinary ray is an integral multiple of a wavelength. Due to multiple passes in the resonator, the birefringent plate 6 is equivalent to a Lyot filter with all birefringent elements equal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3042967A GB1224318A (en) | 1967-06-30 | 1967-06-30 | Improvements in or relating to lasers |
| DE19681764590 DE1764590A1 (en) | 1967-06-30 | 1968-07-01 | laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3042967A GB1224318A (en) | 1967-06-30 | 1967-06-30 | Improvements in or relating to lasers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1224318A true GB1224318A (en) | 1971-03-10 |
Family
ID=10307550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3042967A Expired GB1224318A (en) | 1967-06-30 | 1967-06-30 | Improvements in or relating to lasers |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1764590A1 (en) |
| GB (1) | GB1224318A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986003066A1 (en) * | 1984-11-09 | 1986-05-22 | The Commonwealth Of Australia Care Of The Assistan | Birefringence compensation in polarisation coupled lasers |
| AU578769B2 (en) * | 1984-11-09 | 1988-11-03 | Commonwealth Of Australia, The | Birefringence compensation in polarisation coupled lasers |
| FR2916310A1 (en) * | 2007-05-14 | 2008-11-21 | Centre Nat Rech Scient | PULSE CHIP LASER |
-
1967
- 1967-06-30 GB GB3042967A patent/GB1224318A/en not_active Expired
-
1968
- 1968-07-01 DE DE19681764590 patent/DE1764590A1/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986003066A1 (en) * | 1984-11-09 | 1986-05-22 | The Commonwealth Of Australia Care Of The Assistan | Birefringence compensation in polarisation coupled lasers |
| GB2178891A (en) * | 1984-11-09 | 1987-02-18 | Commw Of Australia | Birefringence compensation in polarisation coupled lasers |
| AU578769B2 (en) * | 1984-11-09 | 1988-11-03 | Commonwealth Of Australia, The | Birefringence compensation in polarisation coupled lasers |
| FR2916310A1 (en) * | 2007-05-14 | 2008-11-21 | Centre Nat Rech Scient | PULSE CHIP LASER |
| WO2008152251A2 (en) * | 2007-05-14 | 2008-12-18 | Centre National De La Recherche Scientifique- Cnrs | Pulsed microchip laser |
| WO2008152251A3 (en) * | 2007-05-14 | 2009-09-03 | Centre National De La Recherche Scientifique- Cnrs | Pulsed microchip laser |
| US8340142B2 (en) | 2007-05-14 | 2012-12-25 | Centre National De La Recherche Scientifique - Cnrs | Pulsed microchip laser |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1764590A1 (en) | 1971-09-09 |
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