JPS5697304A - Graded refractive index distribution type optical fiber - Google Patents
Graded refractive index distribution type optical fiberInfo
- Publication number
- JPS5697304A JPS5697304A JP17333779A JP17333779A JPS5697304A JP S5697304 A JPS5697304 A JP S5697304A JP 17333779 A JP17333779 A JP 17333779A JP 17333779 A JP17333779 A JP 17333779A JP S5697304 A JPS5697304 A JP S5697304A
- Authority
- JP
- Japan
- Prior art keywords
- radius
- optical fibers
- refractive indexes
- type optical
- optical fiber
- 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
- 239000013307 optical fiber Substances 0.000 title abstract 4
- 239000000835 fiber Substances 0.000 abstract 2
- 230000004907 flux Effects 0.000 abstract 2
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
- G02B6/26—Optical coupling means
- G02B6/262—Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
- Optical Couplings Of Light Guides (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
PURPOSE:To introduce a large luminous flux with good efficiency into optical fibers by forming self-convergent fibers which have prescribed refractive indexes in a radial direction and are extremely fine in the intermediate part, and continuously changing the radius while maintaining the product of intrinsic constant and the square of radius constant near both ends. CONSTITUTION:Rod lenses 13, 23 of a number of stages made by using such self- convergent type optical fibers of which the refractive indexes in a radial direction satisfy n=n0(1-0.5Ar<2>) where the radial of optical fibers are defined as (r) and the refractive indexes on the axis as n0, and connecting these in a manner that the product of intrinsic constant A and the square of radius R satisfies fixed conditions, are connected to a fine rod lens 33. Or equally good results is obtained by connecting a pair of rod lenses 14, 13 which are made by extending one rod lens, in order to decrease the difference of the surface level of the rod lenses 13, 23. Thereby, a large luminous flux is introduced into the fiber with good efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17333779A JPS5697304A (en) | 1979-12-29 | 1979-12-29 | Graded refractive index distribution type optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17333779A JPS5697304A (en) | 1979-12-29 | 1979-12-29 | Graded refractive index distribution type optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5697304A true JPS5697304A (en) | 1981-08-06 |
Family
ID=15958552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17333779A Pending JPS5697304A (en) | 1979-12-29 | 1979-12-29 | Graded refractive index distribution type optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5697304A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004046048A (en) * | 2002-07-15 | 2004-02-12 | Moritex Corp | Coupling mechanism between laser diode and single mode fiber |
| WO2013129007A1 (en) * | 2012-02-27 | 2013-09-06 | 住友電気工業株式会社 | Optical coupling element and method for manufacturing same |
| US9348090B2 (en) | 2012-02-27 | 2016-05-24 | Sumitomo Electric Industries, Ltd. | Optical coupling element and manufacturing method |
-
1979
- 1979-12-29 JP JP17333779A patent/JPS5697304A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004046048A (en) * | 2002-07-15 | 2004-02-12 | Moritex Corp | Coupling mechanism between laser diode and single mode fiber |
| WO2013129007A1 (en) * | 2012-02-27 | 2013-09-06 | 住友電気工業株式会社 | Optical coupling element and method for manufacturing same |
| US9348090B2 (en) | 2012-02-27 | 2016-05-24 | Sumitomo Electric Industries, Ltd. | Optical coupling element and manufacturing method |
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