GB1162888A - Laser Materials and device - Google Patents
Laser Materials and deviceInfo
- Publication number
- GB1162888A GB1162888A GB4179367A GB4179367A GB1162888A GB 1162888 A GB1162888 A GB 1162888A GB 4179367 A GB4179367 A GB 4179367A GB 4179367 A GB4179367 A GB 4179367A GB 1162888 A GB1162888 A GB 1162888A
- Authority
- GB
- United Kingdom
- Prior art keywords
- caf
- erf
- rare earth
- laser
- tmf
- 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
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
1,162,888. Lasers. HUGHES AIRCRAFT CO. 13 Sept., 1967 [3 Jan., 1967], No. 41793/67. Heading H1C. [Also in Division C4] A laser material having a crystal structure between cubic and hexagonal or orthorhombic comprises CaF 2 and a rare earth fluoride. Materials having specified proportions comprising CaF 2 and ErF 3 ; CaF 2 , ErF 3 and TmF 2 or HoF 3 ; CaF 2 , ErF 3 , YbF 3 , TmF 3 and HoF 3 are described. In the preparation of the material, commercial rare earth oxide is dissolved in HCl and added to an ion exchange column where impurities are removed using DTPA and EDTA. Rare earth oxalate is precipitated from the purified solution and burned to form the oxide which is reacted with HF to form the fluoride. This is fused with CaF 2 in a He atmosphere containing HF. A laser device producing pulsed or continuous wave action comprises an elliptical cavity having a highly polished inner surface with a laser rod and an optical pumping quartz iodine or Xenon lamp at the ellipse foci. The rod is maintained at room temperature or at 100‹ K. It has large radius polished ends one fully silvered and the other partially.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60704167A | 1967-01-03 | 1967-01-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1162888A true GB1162888A (en) | 1969-08-27 |
Family
ID=24430562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4179367A Expired GB1162888A (en) | 1967-01-03 | 1967-09-13 | Laser Materials and device |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1589902B2 (en) |
| GB (1) | GB1162888A (en) |
| SE (1) | SE343989B (en) |
-
1967
- 1967-09-13 GB GB4179367A patent/GB1162888A/en not_active Expired
- 1967-09-30 DE DE19671589902 patent/DE1589902B2/en not_active Withdrawn
- 1967-10-02 SE SE1349567A patent/SE343989B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1589902A1 (en) | 1970-09-17 |
| SE343989B (en) | 1972-03-20 |
| DE1589902B2 (en) | 1971-03-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |