JPS57208513A - Optical coupler and its manufacture - Google Patents
Optical coupler and its manufactureInfo
- Publication number
- JPS57208513A JPS57208513A JP9375781A JP9375781A JPS57208513A JP S57208513 A JPS57208513 A JP S57208513A JP 9375781 A JP9375781 A JP 9375781A JP 9375781 A JP9375781 A JP 9375781A JP S57208513 A JPS57208513 A JP S57208513A
- Authority
- JP
- Japan
- Prior art keywords
- end part
- refractive index
- light guide
- laser
- optical
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Optical Integrated Circuits (AREA)
Abstract
PURPOSE:To easily obtain an optical couler which achieves high-efficiency coupling, by increasing the thickness of a light guide end part where a laser beam is photodetected, and decreasing the refractive index of the end part gradually in the traveling direction of the beam. CONSTITUTION:A laser beam emitted by a semiconductor laser 1 is made into a parallel laser beam through a cylindrical lens 2, and the beam is made incident to the end part 6 of a light guide as shown by an arrow. Since the end part 6 is increased in thickness, the collection of light is facilitated. The refractive index of the end part 6 is increased by deeply diffusing a diffusion material, and the refractive index is decreased successively from an optical coupling part 5 to a light guide 4. At the optical coupling part 5, the beam is directed to the part having a higher refractive index and condensed to relaize optical coupling with high efficiency. Further, the semiconductor laser 1 is coupled with a lens 2 by utilizing a V-shaped groove to facilitate the alignment of the axis of the laser to that of the light guide, thus obtaining an optical coupler with high efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9375781A JPS57208513A (en) | 1981-06-19 | 1981-06-19 | Optical coupler and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9375781A JPS57208513A (en) | 1981-06-19 | 1981-06-19 | Optical coupler and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57208513A true JPS57208513A (en) | 1982-12-21 |
Family
ID=14091296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9375781A Pending JPS57208513A (en) | 1981-06-19 | 1981-06-19 | Optical coupler and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57208513A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01270006A (en) * | 1988-04-22 | 1989-10-27 | Brother Ind Ltd | Distributed index camera |
| JP2014520290A (en) * | 2011-06-30 | 2014-08-21 | インテル コーポレイション | Multimode optical coupler |
-
1981
- 1981-06-19 JP JP9375781A patent/JPS57208513A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01270006A (en) * | 1988-04-22 | 1989-10-27 | Brother Ind Ltd | Distributed index camera |
| JP2014520290A (en) * | 2011-06-30 | 2014-08-21 | インテル コーポレイション | Multimode optical coupler |
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