FR2364865B1 - - Google Patents
Info
- Publication number
- FR2364865B1 FR2364865B1 FR7728261A FR7728261A FR2364865B1 FR 2364865 B1 FR2364865 B1 FR 2364865B1 FR 7728261 A FR7728261 A FR 7728261A FR 7728261 A FR7728261 A FR 7728261A FR 2364865 B1 FR2364865 B1 FR 2364865B1
- Authority
- FR
- France
- 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
-
- 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
- G02B6/03622—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 2 layers only
- G02B6/03627—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 2 layers only arranged - +
-
- 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
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
-
- 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
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
- C03B37/01861—Means for changing or stabilising the diameter or form of tubes or rods
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/10—Internal structure or shape details
- C03B2203/22—Radial profile of refractive index, composition or softening point
- C03B2203/26—Parabolic or graded index [GRIN] core profile
-
- 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
- G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
- G02B6/0281—Graded index region forming part of the central core segment, e.g. alpha profile, triangular, trapezoidal core
-
- 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
- G02B6/03605—Highest refractive index not on central axis
- G02B6/03611—Highest index adjacent to central axis region, e.g. annular core, coaxial ring, centreline depression affecting waveguiding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11186476A JPS5337440A (en) | 1976-09-20 | 1976-09-20 | Production of optical fibers |
JP1427077A JPS53100253A (en) | 1977-02-14 | 1977-02-14 | Production of optical fibers |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2364865A1 FR2364865A1 (fr) | 1978-04-14 |
FR2364865B1 true FR2364865B1 (nl) | 1983-01-14 |
Family
ID=26350184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7728261A Granted FR2364865A1 (fr) | 1976-09-20 | 1977-09-20 | Procede de fabrication d'une fibre optique |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2741854B2 (nl) |
FR (1) | FR2364865A1 (nl) |
NL (1) | NL7710280A (nl) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1562032A (en) * | 1977-03-24 | 1980-03-05 | Standard Telephones Cables Ltd | Optical fibre manufacture |
DE2814380C3 (de) * | 1978-04-04 | 1982-07-08 | Schott Glaswerke, 6500 Mainz | Verfahren zur Herstellung optischer Glasfasern aus einem kollabierten Kieselglasrohr |
US4230396A (en) * | 1978-07-31 | 1980-10-28 | Corning Glass Works | High bandwidth optical waveguides and method of fabrication |
US4229070A (en) * | 1978-07-31 | 1980-10-21 | Corning Glass Works | High bandwidth optical waveguide having B2 O3 free core and method of fabrication |
DE2907833A1 (de) * | 1979-02-28 | 1980-09-11 | Siemens Ag | Verfahren zur herstellung von beschichteten glaskoerpern |
US4304581A (en) * | 1980-08-07 | 1981-12-08 | Western Electric Co., Inc. | Lightguide preform fabrication |
DE3206144A1 (de) * | 1982-02-20 | 1983-09-01 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zur herstellung eines lichtwellenleiters |
FR2576693B1 (fr) * | 1985-01-30 | 1989-02-17 | Comp Generale Electricite | Procede de fabrication d'un composant optique a gradient d'indice de refraction |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51146243A (en) * | 1975-06-11 | 1976-12-15 | Hitachi Ltd | Process for manufacturing optical fiber |
DE2530786A1 (de) * | 1975-07-10 | 1977-01-27 | Licentia Gmbh | Verfahren zur herstellung optischer fasern |
-
1977
- 1977-09-16 DE DE19772741854 patent/DE2741854B2/de not_active Ceased
- 1977-09-19 NL NL7710280A patent/NL7710280A/nl not_active Application Discontinuation
- 1977-09-20 FR FR7728261A patent/FR2364865A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2364865A1 (fr) | 1978-04-14 |
DE2741854A1 (de) | 1978-03-23 |
DE2741854B2 (de) | 1981-03-19 |
NL7710280A (nl) | 1978-03-22 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |