JPS5535354A - Semiconductor laser beam branching device - Google Patents
Semiconductor laser beam branching deviceInfo
- Publication number
- JPS5535354A JPS5535354A JP10810878A JP10810878A JPS5535354A JP S5535354 A JPS5535354 A JP S5535354A JP 10810878 A JP10810878 A JP 10810878A JP 10810878 A JP10810878 A JP 10810878A JP S5535354 A JPS5535354 A JP S5535354A
- Authority
- JP
- Japan
- Prior art keywords
- prism
- light
- distance
- optical fiber
- laser beam
- 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.)
- Pending
Links
Landscapes
- Semiconductor Lasers (AREA)
Abstract
PURPOSE: To branch the laser beam accurately, by using a modified Glan-Thompson prism, in an optical fiber type signal optical transmission system using semiconductor laser beam.
CONSTITUTION: A modified Glan-Thompson prism 9 is combined with a branching prism 10, which are disposed in an optical path. A light 2 from a laser 1 reaches a boundary surface l of 9, and a normal beam 24 is reflected, while an abnormal beam 23 advances straightly. The abnormal beam 23 is directed towards prism surfaces m, m' which are flat mirror surfaces. When the distance between m and m' is several timers longer than the wavelength of light 2, the beam 23 is totally reflected by the surface m, and is emitted only to the direction of optical fiber 8. But, if the distance between m and m' is shorter than the wavelength of light 2, part of beam 23 passes through the surface m' due to ooze out effect (tunnel effect),and is emitted to an optical fiber 7. By varying the pressure F applied through a supporting part 11 of the prism 10, the distance between m and m' may be changed, so that the light branching rate to the optical fibers 7, 8 may be controlled.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10810878A JPS5535354A (en) | 1978-09-05 | 1978-09-05 | Semiconductor laser beam branching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10810878A JPS5535354A (en) | 1978-09-05 | 1978-09-05 | Semiconductor laser beam branching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5535354A true JPS5535354A (en) | 1980-03-12 |
Family
ID=14476084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10810878A Pending JPS5535354A (en) | 1978-09-05 | 1978-09-05 | Semiconductor laser beam branching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5535354A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4420219A (en) * | 1980-03-18 | 1983-12-13 | Carl-Zeiss-Stiftung | Optical waveguide connector using aspheric lenses |
| US4432601A (en) * | 1980-02-23 | 1984-02-21 | Te Ka De Felten & Guilleaume Fernmeldeanlagen Gmbh | Apparatus and method for coupling and decoupling of optical fiber waveguides |
| US4787710A (en) * | 1986-07-03 | 1988-11-29 | Durell William E | Variable ratio beam splitter |
| US5136433A (en) * | 1990-05-29 | 1992-08-04 | Durell William E | Optical positioner and connector |
| CN105572881A (en) * | 2015-12-17 | 2016-05-11 | 中国人民解放军国防科学技术大学 | Free space light beam splitter adjustable in splitting ratio |
-
1978
- 1978-09-05 JP JP10810878A patent/JPS5535354A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4432601A (en) * | 1980-02-23 | 1984-02-21 | Te Ka De Felten & Guilleaume Fernmeldeanlagen Gmbh | Apparatus and method for coupling and decoupling of optical fiber waveguides |
| US4420219A (en) * | 1980-03-18 | 1983-12-13 | Carl-Zeiss-Stiftung | Optical waveguide connector using aspheric lenses |
| US4787710A (en) * | 1986-07-03 | 1988-11-29 | Durell William E | Variable ratio beam splitter |
| US5136433A (en) * | 1990-05-29 | 1992-08-04 | Durell William E | Optical positioner and connector |
| CN105572881A (en) * | 2015-12-17 | 2016-05-11 | 中国人民解放军国防科学技术大学 | Free space light beam splitter adjustable in splitting ratio |
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