GB1531623A - Optical fibres - Google Patents
Optical fibresInfo
- Publication number
- GB1531623A GB1531623A GB2866976A GB2866976A GB1531623A GB 1531623 A GB1531623 A GB 1531623A GB 2866976 A GB2866976 A GB 2866976A GB 2866976 A GB2866976 A GB 2866976A GB 1531623 A GB1531623 A GB 1531623A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- internal heating
- july
- refractive index
- ions
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/04—Fibre optics, e.g. core and clad fibre compositions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/04—Fibre optics, e.g. core and clad fibre compositions
- C03C13/045—Silica-containing oxide glass compositions
- C03C13/046—Multicomponent glass compositions
Abstract
1531623 Optical fibres QUARTZ & SILICE 9 July 1976 [11 July 1975] 28669/76 Heading C1M An optical fibre with a parabolic radial gradient of refractive index is made by locating a rod of a first glass within a sheath of a second glass, the glasses containing different ions capable of mutual interdiffusion and the first glass having a higher refractive index than the second, subjecting successive zones of the composite along its length to internal heating, to allow for ion diffusion, and drawing to fibre form. The internal heating may be by way of HF induction, dielectric loss or use of a hyper-frequency wave guide and the composite may be heated externally (e.g. by flame, graphite or metal heating ring or C0 2 laser) before internal heating. The fibres may be drawn off vertically downwards or horizontally and the diffusing ions may be Tl or Cs in the first glass and alkali metal ions in the second.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7521816A FR2317243A1 (en) | 1975-07-11 | 1975-07-11 | OPTICAL FIBER MANUFACTURING PROCESS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1531623A true GB1531623A (en) | 1978-11-08 |
Family
ID=9157829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2866976A Expired GB1531623A (en) | 1975-07-11 | 1976-07-09 | Optical fibres |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5238237A (en) |
| DE (1) | DE2630975A1 (en) |
| FR (1) | FR2317243A1 (en) |
| GB (1) | GB1531623A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2750778C3 (en) * | 1977-11-14 | 1981-12-10 | Jenaer Glaswerk Schott & Gen., 6500 Mainz | Process for the generation of refractive index gradients in a glass rod by ion diffusion between the core glass and the cladding glass |
| NL7800157A (en) * | 1978-01-06 | 1979-07-10 | Philips Nv | PROCESS FOR THE MANUFACTURE OF OPTICAL FIBERS FOR TELECOMMUNICATIONS. |
| JPS5814418A (en) * | 1981-07-16 | 1983-01-27 | 住友電気工業株式会社 | Method of producing of cable |
| JPS6113511A (en) * | 1984-06-29 | 1986-01-21 | 昭和電線電纜株式会社 | Method of producing of cable |
| DE3506660A1 (en) * | 1985-02-26 | 1986-08-28 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Process for production of a preform for an optical waveguide |
| US4886538A (en) * | 1987-07-28 | 1989-12-12 | Polaroid Corporation | Process for tapering waveguides |
-
1975
- 1975-07-11 FR FR7521816A patent/FR2317243A1/en active Granted
-
1976
- 1976-07-09 GB GB2866976A patent/GB1531623A/en not_active Expired
- 1976-07-09 DE DE19762630975 patent/DE2630975A1/en not_active Withdrawn
- 1976-07-10 JP JP8150476A patent/JPS5238237A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2317243A1 (en) | 1977-02-04 |
| FR2317243B1 (en) | 1982-12-17 |
| DE2630975A1 (en) | 1977-01-20 |
| JPS5238237A (en) | 1977-03-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |