JPS56101108A - Glass fiber for light transmission - Google Patents
Glass fiber for light transmissionInfo
- Publication number
- JPS56101108A JPS56101108A JP415580A JP415580A JPS56101108A JP S56101108 A JPS56101108 A JP S56101108A JP 415580 A JP415580 A JP 415580A JP 415580 A JP415580 A JP 415580A JP S56101108 A JPS56101108 A JP S56101108A
- Authority
- JP
- Japan
- Prior art keywords
- clad layer
- glass
- refractive index
- sio2
- core
- 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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
- G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
- G02B6/03638—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only
- G02B6/03644—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only arranged - + -
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
PURPOSE:To eliminate easily the propagated light in the clad layer, by forming two clad layers and by adding the light absorbent to the outside clad layer and by making the refractive index of the outside clad layer higher than that of the inside clad layer. CONSTITUTION:The second clad layer 23 of the glass having the refractive index higher than that of quartz tube 24 is provided in quartz tube 24, and the first clad layer 22 of the glass having the refractive index higher than that of tube 24 and lower than that of the second clad layer 23 is provided inside the second clad layer 23, and the core of the glass having the highest refractive index is provided inside the first clad layer 22, and the additive which absorbs the introduced undesired transmission light is added into the second clad layer. By this constitution, undesired light beam 28 which does not make the critical angle in the interface between the core and the first clad layer is absorbed into the second clad layer 23. Core 21 is formed with the glass consisting of SiO2 and GeO2, and the first clad layer 22 is formed with the glass consisting of SiO2 and P2O5, and the second clad layer is formed with the glass consisting of SiO2, GeO2 and B2O3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP415580A JPS56101108A (en) | 1980-01-17 | 1980-01-17 | Glass fiber for light transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP415580A JPS56101108A (en) | 1980-01-17 | 1980-01-17 | Glass fiber for light transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56101108A true JPS56101108A (en) | 1981-08-13 |
Family
ID=11576856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP415580A Pending JPS56101108A (en) | 1980-01-17 | 1980-01-17 | Glass fiber for light transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56101108A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5869805U (en) * | 1981-11-03 | 1983-05-12 | 大昌電気工業株式会社 | plastic optical fiber |
JPS62156605A (en) * | 1985-12-27 | 1987-07-11 | Sumitomo Electric Ind Ltd | Optical fiber strand |
JPH01282507A (en) * | 1988-05-09 | 1989-11-14 | Sumitomo Electric Ind Ltd | Optical fiber |
WO2000011497A1 (en) * | 1998-08-25 | 2000-03-02 | Quante Ag | Plastic optical fiber |
US6351588B1 (en) * | 1999-09-17 | 2002-02-26 | Vikram Bhatia | Fiber Bragg grating with cladding mode suppression |
US7215860B2 (en) * | 2005-05-02 | 2007-05-08 | Lucent Technologies Inc. | Optical transmission fiber with a glass guiding cladding |
-
1980
- 1980-01-17 JP JP415580A patent/JPS56101108A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5869805U (en) * | 1981-11-03 | 1983-05-12 | 大昌電気工業株式会社 | plastic optical fiber |
JPS62156605A (en) * | 1985-12-27 | 1987-07-11 | Sumitomo Electric Ind Ltd | Optical fiber strand |
JPH01282507A (en) * | 1988-05-09 | 1989-11-14 | Sumitomo Electric Ind Ltd | Optical fiber |
WO2000011497A1 (en) * | 1998-08-25 | 2000-03-02 | Quante Ag | Plastic optical fiber |
US6501894B2 (en) | 1998-08-25 | 2002-12-31 | Wolfgang Dultz | Plastic optical fiber |
US6351588B1 (en) * | 1999-09-17 | 2002-02-26 | Vikram Bhatia | Fiber Bragg grating with cladding mode suppression |
US7215860B2 (en) * | 2005-05-02 | 2007-05-08 | Lucent Technologies Inc. | Optical transmission fiber with a glass guiding cladding |
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