GB1289890A - - Google Patents
Info
- Publication number
- GB1289890A GB1289890A GB1289890DA GB1289890A GB 1289890 A GB1289890 A GB 1289890A GB 1289890D A GB1289890D A GB 1289890DA GB 1289890 A GB1289890 A GB 1289890A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mirrors
- active medium
- reflectivity
- oct
- mirror
- 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
- H01S3/05—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
-
- 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
- H01S3/06—Construction or shape of active medium
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
- Lasers (AREA)
Abstract
1289890 Lasers COMPAGNIE GENERALE D'ELECTRICITE 14 Oct 1970 [14 Oct 1969] 48890/70 Heading H1C In a laser in which transverse modes are minimized by using resonator mirrors and an active medium of small diameter relative to the resonator length, the active medium 3, Fig. 1, is of larger diameter than that of the mirrors 4, 5, and one mirror 4 has a non-uniform reflectivity to minimize the effect of mechanical, e.g. thermal, displacement of the active medium and the consequential misalignment of the optical system. The mirrors may be planar or partspherical, as shown, and comprise reflective coatings on respective glass substrates 1, 2. The coating on mirror 4 is formed so that its optical thickness decreases outwardly from its optical axis 7, and the reflectivity R characteristic with respect to radial distance r from the optical axis may be as shown in Fig. 2, the absence of an abrupt transition from an operational reflectivity value to zero avoiding peripheral diffraction effects.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6935121A FR2063400A5 (en) | 1969-10-14 | 1969-10-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1289890A true GB1289890A (en) | 1972-09-20 |
Family
ID=9041517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1289890D Expired GB1289890A (en) | 1969-10-14 | 1970-10-14 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE757076A (en) |
| CH (1) | CH516235A (en) |
| DE (1) | DE2050277A1 (en) |
| FR (1) | FR2063400A5 (en) |
| GB (1) | GB1289890A (en) |
| NL (1) | NL7014905A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3639580A1 (en) * | 1985-11-20 | 1987-05-21 | Mitsubishi Electric Corp | LASER ARRANGEMENT |
-
0
- BE BE757076D patent/BE757076A/en unknown
-
1969
- 1969-10-14 FR FR6935121A patent/FR2063400A5/fr not_active Expired
-
1970
- 1970-10-07 CH CH1486270A patent/CH516235A/en not_active IP Right Cessation
- 1970-10-12 NL NL7014905A patent/NL7014905A/xx unknown
- 1970-10-13 DE DE19702050277 patent/DE2050277A1/en active Pending
- 1970-10-14 GB GB1289890D patent/GB1289890A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL7014905A (en) | 1971-04-16 |
| CH516235A (en) | 1971-11-30 |
| DE2050277A1 (en) | 1971-04-22 |
| BE757076A (en) | 1971-04-06 |
| FR2063400A5 (en) | 1971-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB985204A (en) | Improvements in or relating to optical or infrared maser cavities | |
| GB1097066A (en) | Optical system for performing digital logic | |
| GB1407351A (en) | Injection lasers | |
| GB1290930A (en) | ||
| GB1481528A (en) | Optical grating assemblies | |
| EP0231050B1 (en) | Unstable laser resonator with output coupler having radially variable reflectivity | |
| GB1289890A (en) | ||
| SU904053A1 (en) | Solar energy-pumped laser | |
| US4219254A (en) | Corrective optics for higher order mode lasers | |
| JPS63244894A (en) | Semiconductor laser | |
| GB1026596A (en) | Improvements relating to optical masers | |
| GB1286458A (en) | Improvements in or relating to optical apparatus | |
| ATE35235T1 (en) | MANIPULATOR. | |
| JPH0334239B2 (en) | ||
| GB941813A (en) | Improved means for concentrating solar energy | |
| GB1086172A (en) | Improvements relating to optical windows | |
| GB1147270A (en) | Improvements in or relating to lasers | |
| GB1055656A (en) | Single mode laser | |
| GB1097665A (en) | Improved lasing system | |
| GB1289280A (en) | ||
| GB1171102A (en) | Improvements in Pulsed Laser Systems. | |
| GB1111027A (en) | Laser projector | |
| GB1028511A (en) | Improvements in and relating to optical masers | |
| US3657733A (en) | Solid state ring laser | |
| GB1361530A (en) | Gas laser generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |