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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