JPS5789706A - Optical fiber - Google Patents
Optical fiberInfo
- Publication number
- JPS5789706A JPS5789706A JP55167192A JP16719280A JPS5789706A JP S5789706 A JPS5789706 A JP S5789706A JP 55167192 A JP55167192 A JP 55167192A JP 16719280 A JP16719280 A JP 16719280A JP S5789706 A JPS5789706 A JP S5789706A
- Authority
- JP
- Japan
- Prior art keywords
- cladding
- optical fiber
- core
- external circumference
- light
- 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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/14—Mode converters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
PURPOSE:To reduce the loss of light by eliminating unnecessary propagation modes by forcing light entering cladding to radiate out of an optical fiber by roughening the cladding which covers the external circumference of the core of the optical fiber. CONSTITUTION:An optical fiber 1 consists of a core 2 and cladding 3 covering its external circumference, and the external circumference 5 of this cladding 4 is roughened finely by being etched with a glass etching agent such as hydrogenfluoride. Consequently, light in unnecessary propagation mode which enters the cladding 3 without being reflected by the boundary surface of the core 2 and cladding 3 and increases in loss is eliminated without using a special additional device such as a dummy fiber. For the formation of the said rough surface 5, regular unevenness may be formed in addition to the method by the etching agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55167192A JPS5789706A (en) | 1980-11-26 | 1980-11-26 | Optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55167192A JPS5789706A (en) | 1980-11-26 | 1980-11-26 | Optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5789706A true JPS5789706A (en) | 1982-06-04 |
Family
ID=15845130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55167192A Pending JPS5789706A (en) | 1980-11-26 | 1980-11-26 | Optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5789706A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6801270B2 (en) * | 2000-06-26 | 2004-10-05 | Reveo, Inc. | Backlight for a liquid crystal display having high light-recycling efficiency |
| JP2015138036A (en) * | 2014-01-20 | 2015-07-30 | 三菱電機株式会社 | Spread angle equalization device and spread angle equalization light source |
| JP2020126145A (en) * | 2019-02-05 | 2020-08-20 | 三菱電線工業株式会社 | Clad mode stripper structure |
-
1980
- 1980-11-26 JP JP55167192A patent/JPS5789706A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6801270B2 (en) * | 2000-06-26 | 2004-10-05 | Reveo, Inc. | Backlight for a liquid crystal display having high light-recycling efficiency |
| JP2015138036A (en) * | 2014-01-20 | 2015-07-30 | 三菱電機株式会社 | Spread angle equalization device and spread angle equalization light source |
| JP2020126145A (en) * | 2019-02-05 | 2020-08-20 | 三菱電線工業株式会社 | Clad mode stripper structure |
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