JPS5758104A - Manufacture of multicore fiber preform - Google Patents
Manufacture of multicore fiber preformInfo
- Publication number
- JPS5758104A JPS5758104A JP55133952A JP13395280A JPS5758104A JP S5758104 A JPS5758104 A JP S5758104A JP 55133952 A JP55133952 A JP 55133952A JP 13395280 A JP13395280 A JP 13395280A JP S5758104 A JPS5758104 A JP S5758104A
- Authority
- JP
- Japan
- Prior art keywords
- rods
- sheath pipe
- preform
- manufacture
- sphericity
- 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
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000000835 fiber Substances 0.000 title 1
- 125000006850 spacer group Chemical group 0.000 abstract 3
- 239000007787 solid Substances 0.000 abstract 2
- 238000009987 spinning Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
- C03B37/01222—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube for making preforms of multiple core optical fibres
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/34—Plural core other than bundles, e.g. double core
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Ropes Or Cables (AREA)
Abstract
PURPOSE:To improve the sphericity of a core after spinning by closely arranging perform rods in a sheath pipe and by making the pipe solid by heating after packing spacer rods in gaps. CONSTITUTION:In a sheath pipe 1, preform rods 4 are arranged closely and in gaps, spacer rods 5 and 6 are packed. materials of the spacer rods 5 and 6 have softening points, coefficients of thermal expansion, and mechanical strength nearly equal to those of the sheath pipe 1 and preform rods 4. One terminal of the sheath pipe 1 is sealed and while discharge of air is carried out from the other terminal, the entire body is heated to manufacture a solid preform having no gap. Consequently, the sphericity of each core 2 after spinning is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55133952A JPS5758104A (en) | 1980-09-26 | 1980-09-26 | Manufacture of multicore fiber preform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55133952A JPS5758104A (en) | 1980-09-26 | 1980-09-26 | Manufacture of multicore fiber preform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5758104A true JPS5758104A (en) | 1982-04-07 |
Family
ID=15116905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55133952A Pending JPS5758104A (en) | 1980-09-26 | 1980-09-26 | Manufacture of multicore fiber preform |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5758104A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7080529B2 (en) * | 2002-06-07 | 2006-07-25 | Weatherford/Lamb, Inc. | Method for making large diameter optical waveguide having Bragg grating and being configured for reducing the bulk modulus of compressibility thereof |
| WO2011004539A1 (en) * | 2009-07-09 | 2011-01-13 | 三菱電線工業株式会社 | Structure of binding multiple cores of optical fibers and method for manufacturing same |
| JP2011027994A (en) * | 2009-07-24 | 2011-02-10 | Mitsubishi Cable Ind Ltd | Optical fiber for mode coupling, and method of manufacturing the same |
| WO2025164096A1 (en) * | 2024-02-01 | 2025-08-07 | 株式会社フジクラ | Optical fiber bundle and fan-in/fan-out device |
-
1980
- 1980-09-26 JP JP55133952A patent/JPS5758104A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7080529B2 (en) * | 2002-06-07 | 2006-07-25 | Weatherford/Lamb, Inc. | Method for making large diameter optical waveguide having Bragg grating and being configured for reducing the bulk modulus of compressibility thereof |
| US8769995B2 (en) | 2002-06-07 | 2014-07-08 | Weatherford/Lamb, Inc. | Method for making large diameter multicore optical waveguide |
| WO2011004539A1 (en) * | 2009-07-09 | 2011-01-13 | 三菱電線工業株式会社 | Structure of binding multiple cores of optical fibers and method for manufacturing same |
| JP2011034040A (en) * | 2009-07-09 | 2011-02-17 | Mitsubishi Cable Ind Ltd | Optical combiner and method of manufacturing the same |
| JP2011027994A (en) * | 2009-07-24 | 2011-02-10 | Mitsubishi Cable Ind Ltd | Optical fiber for mode coupling, and method of manufacturing the same |
| WO2025164096A1 (en) * | 2024-02-01 | 2025-08-07 | 株式会社フジクラ | Optical fiber bundle and fan-in/fan-out device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2038311B (en) | Method of fabricating optical fibre preforms | |
| GB2083017B (en) | Glass composition suitable for production of fibrous wollastonite method for producing said wollastonite and wollastonite obtained thereby | |
| JPS5782137A (en) | Manufacture of glass pipe having at least one dope silica layers and manufacture of preform available foroptical fiber production | |
| JPS5590436A (en) | Manufacture of high strength optical preform and fiber | |
| GB2023108B (en) | Process of forming basalt fibres with tensile strenght | |
| JPS5758104A (en) | Manufacture of multicore fiber preform | |
| JPS5792303A (en) | Manufacture of multicore fiber preform | |
| JPS5538489A (en) | Method of mass production of heat pipe | |
| DE3277117D1 (en) | Heat insulating article made of a highly dispersed insulating material densified by compression, and process for its production | |
| JPS56144112A (en) | Manufacture of glass fiber reinforced cement composite product not containing asbestos | |
| JPS5738331A (en) | Manufacture of base material for multicore fiber | |
| GB2018745A (en) | Method of fabricating large optical preforms | |
| JPS55133776A (en) | Improved tube sheet for hollow fibrous high temperature battery and method of manufacturing same | |
| JPS55133003A (en) | Production of multicore type optical fiber | |
| PL127870B2 (en) | Method of manufacture of modified asbestos fibre | |
| GB2029462B (en) | False-twisting system for the production of composite crimped yarn | |
| JPS523285A (en) | Bonding method of glass material and capsule material constituting gla ss electric bulb | |
| JPS57205333A (en) | Manufacture of single-polarization single-mode optical fiber | |
| ZA79390B (en) | Glass fiber reinforced cements and process for manufacture of same | |
| JPS54158239A (en) | Production of optical fiber | |
| JPS57186722A (en) | Reinforcing method for optical fiber connection part | |
| JPS565511A (en) | Production of multicore fiber | |
| JPS5758105A (en) | Manufacture of glass material of optical system | |
| SU1834277A1 (en) | Method and apparatus for production of charcoal | |
| EP0228079A3 (en) | A method for manufacturing a fiber reinforced metal |