IN2014DE03398A - - Google Patents
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- Publication number
- IN2014DE03398A IN2014DE03398A IN3398DE2014A IN2014DE03398A IN 2014DE03398 A IN2014DE03398 A IN 2014DE03398A IN 3398DE2014 A IN3398DE2014 A IN 3398DE2014A IN 2014DE03398 A IN2014DE03398 A IN 2014DE03398A
- Authority
- IN
- India
- Prior art keywords
- silica glass
- core rod
- added
- core
- dopant
- Prior art date
Links
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
- C03B37/014—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]
- C03B37/01446—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
- C03B37/01453—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering for doping the preform with flourine
-
- 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
- C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
- C03B37/01228—Removal of preform material
-
- 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
- C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
- C03B37/0124—Means for reducing the diameter of rods or tubes by drawing, e.g. for preform draw-down
-
- 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
- C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
- C03B37/0124—Means for reducing the diameter of rods or tubes by drawing, e.g. for preform draw-down
- C03B37/01245—Means for reducing the diameter of rods or tubes by drawing, e.g. for preform draw-down by drawing and collapsing
-
- 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]
- C03B37/01446—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
-
- 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]
- C03B37/01466—Means for changing or stabilising the diameter or form of tubes or rods
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
- C03B2201/12—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant doped with fluorine
-
- 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
-
- 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
- C03B2203/23—Double or multiple optical cladding profiles
-
- 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
- G02B6/0283—Graded index region external to the central core segment, e.g. sloping layer or triangular or trapezoidal layer
-
- 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
- G02B6/0365—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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Glass Compositions (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013245500 | 2013-11-28 | ||
JP2014206521A JP6310378B2 (ja) | 2013-11-28 | 2014-10-07 | 光ファイバ用シリカガラス母材の製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
IN2014DE03398A true IN2014DE03398A (fr) | 2015-08-21 |
Family
ID=51900237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN3398DE2014 IN2014DE03398A (fr) | 2013-11-28 | 2014-11-21 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20160214884A1 (fr) |
EP (1) | EP2878583B1 (fr) |
JP (1) | JP6310378B2 (fr) |
CN (1) | CN104671658B (fr) |
IN (1) | IN2014DE03398A (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6124778B2 (ja) * | 2012-12-28 | 2017-05-10 | 信越化学工業株式会社 | 光ファイバ、光ファイバ用シリカガラス母材、および光ファイバの製造方法 |
WO2017059928A1 (fr) * | 2015-10-09 | 2017-04-13 | Prysmian S.P.A. | Procédé de fabrication d'une préforme à noyau de verre pour fibres optiques. |
WO2017148528A1 (fr) * | 2016-03-03 | 2017-09-08 | Prysmian S.P.A. | Procédé de fabrication d'une préforme destinée à des fibres optiques |
US9989699B2 (en) * | 2016-10-27 | 2018-06-05 | Corning Incorporated | Low bend loss single mode optical fiber |
US11634351B2 (en) * | 2019-08-13 | 2023-04-25 | Sterlite Technologies Limited | Method for sintering of optical fibre preform |
JP7332559B2 (ja) * | 2020-09-16 | 2023-08-23 | 信越化学工業株式会社 | 光ファイバ用ガラス母材の製造方法 |
CN114195379A (zh) * | 2021-12-21 | 2022-03-18 | 通鼎互联信息股份有限公司 | 一种低损耗截止波长位移单模光纤的拉丝方法 |
CN115010360B (zh) * | 2022-07-14 | 2024-04-09 | 中天科技精密材料有限公司 | 一种光纤预制棒的制备方法、光纤预制棒及光纤 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5217516A (en) * | 1985-12-27 | 1993-06-08 | Sumitomo Electric Industries, Ltd. | Method of making optical glass article |
EP0851247A3 (fr) * | 1996-12-27 | 2000-06-14 | Sumitomo Electric Industries, Ltd | Fibre optique à dispersion décalée et sa méthode de fabrication |
US6535679B2 (en) * | 1997-01-16 | 2003-03-18 | Sumitomo Electric Industries, Ltd. | Optical fiber and method of manufacturing the same |
EP1341011A1 (fr) * | 2002-02-28 | 2003-09-03 | FITEL USA CORPORATION (a Delaware Corporation) | Fibre de compensation de dispersion |
US7221838B2 (en) * | 2004-06-23 | 2007-05-22 | Furukawa Electric North America, Inc. | Optical fibers with reduced splice loss and methods for making same |
WO2009096557A1 (fr) * | 2008-01-30 | 2009-08-06 | Asahi Glass Co., Ltd. | Préforme de fibre optique utilisée pour la transmission d'énergie ou la transmission de lumière ultraviolette et procédé de fabrication de la préforme de fibre optique |
US7676129B1 (en) * | 2008-11-18 | 2010-03-09 | Corning Incorporated | Bend-insensitive fiber with two-segment core |
EP2330447A1 (fr) * | 2009-11-18 | 2011-06-08 | Sehf-Korea Co., Ltd. | Fibre optique à faible perte de courbure |
WO2011108639A1 (fr) * | 2010-03-03 | 2011-09-09 | 株式会社フジクラ | Procédé de fabrication de quartz poreux, procédé de fabrication d'une préforme de fibre optique, quartz poreux et préforme de fibre optique associés |
JP2012078804A (ja) * | 2010-09-06 | 2012-04-19 | Shin Etsu Chem Co Ltd | 光ファイバ、光ファイバプリフォームおよびその製造方法 |
JP5590617B2 (ja) * | 2011-06-03 | 2014-09-17 | 信越化学工業株式会社 | コアから離隔した位置に低屈折率部を有する光ファイバ用母材の製造方法 |
US9873629B2 (en) * | 2011-06-30 | 2018-01-23 | Corning Incorporated | Methods for producing optical fiber preforms with low index trenches |
US8768129B2 (en) * | 2011-09-21 | 2014-07-01 | Ofs Fitel, Llc | Optimized ultra large area optical fibers |
KR101273801B1 (ko) * | 2011-10-17 | 2013-06-11 | 에쓰이에이치에프코리아 (주) | 구부림 손실 강화 광섬유 |
KR20130116009A (ko) * | 2012-04-12 | 2013-10-22 | 신에쓰 가가꾸 고교 가부시끼가이샤 | 광섬유 |
DE102012007520B3 (de) * | 2012-04-17 | 2013-08-08 | Heraeus Quarzglas Gmbh & Co. Kg | Verfahren für die Herstellung eines zylinderförmigen Bauteils aus Fluor enthaltendem synthetischem Quarzglas |
JP2013230961A (ja) * | 2012-05-02 | 2013-11-14 | Shin-Etsu Chemical Co Ltd | 光ファイバプリフォームの製造方法 |
JP6124778B2 (ja) * | 2012-12-28 | 2017-05-10 | 信越化学工業株式会社 | 光ファイバ、光ファイバ用シリカガラス母材、および光ファイバの製造方法 |
US9110220B2 (en) * | 2013-07-16 | 2015-08-18 | Corning Incorporated | High bandwidth MMF and method of making |
-
2014
- 2014-10-07 JP JP2014206521A patent/JP6310378B2/ja active Active
- 2014-11-06 US US14/534,667 patent/US20160214884A1/en not_active Abandoned
- 2014-11-13 EP EP14193027.1A patent/EP2878583B1/fr active Active
- 2014-11-21 IN IN3398DE2014 patent/IN2014DE03398A/en unknown
- 2014-11-24 CN CN201410682139.9A patent/CN104671658B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
US20160214884A1 (en) | 2016-07-28 |
JP6310378B2 (ja) | 2018-04-11 |
JP2015127290A (ja) | 2015-07-09 |
EP2878583A1 (fr) | 2015-06-03 |
EP2878583B1 (fr) | 2017-01-11 |
CN104671658A (zh) | 2015-06-03 |
CN104671658B (zh) | 2019-09-06 |
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