JPS6465038A - Production of preform for single-mode optical fiber - Google Patents
Production of preform for single-mode optical fiberInfo
- Publication number
- JPS6465038A JPS6465038A JP9201087A JP9201087A JPS6465038A JP S6465038 A JPS6465038 A JP S6465038A JP 9201087 A JP9201087 A JP 9201087A JP 9201087 A JP9201087 A JP 9201087A JP S6465038 A JPS6465038 A JP S6465038A
- Authority
- JP
- Japan
- Prior art keywords
- preform
- clad
- refractive index
- clad layer
- 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.)
- Granted
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]
- C03B37/01413—Reactant delivery systems
-
- 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
-
- 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
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/20—Doped silica-based glasses doped with non-metals other than boron or 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
- C03B2203/24—Single mode [SM or monomode]
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
PURPOSE:To uniformize the refractive index distribution of a clad by adding a refractive index controlling substance to the inner or outer layer of the clad to control the difference in the specific refractive index between the inner and outer clad layers at the time of producing the title preform having a core and the inner and outer layers of the clad. CONSTITUTION:A glass material and gaseous fuel are introduced into burners 10 and 11 form the porous preform 9 having a core 7 and an inner clad layer 8, and the preform is heated to obtain the transparent glass preform 14 having a core 12 and an inner clad layer 13. The preform 14 is inserted into a glass tube 15 to form an outer clad layer, heated, and integrated. In the production stage, a refractive index increasing substance (e.g., chlorine) and a refractive index decreasing substance (e.g., fluorine) are added to the inner clad layer 13 or the outer clad layer 15 to control the difference in the specific refractive index between the inner and outer clad layers to <=0.003%, and the preform for a single-mode optical fiber is obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9201087A JPH07106924B2 (en) | 1987-04-16 | 1987-04-16 | Manufacturing method of base material for single mode and optical fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9201087A JPH07106924B2 (en) | 1987-04-16 | 1987-04-16 | Manufacturing method of base material for single mode and optical fiber |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6465038A true JPS6465038A (en) | 1989-03-10 |
JPH07106924B2 JPH07106924B2 (en) | 1995-11-15 |
Family
ID=14042511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9201087A Expired - Lifetime JPH07106924B2 (en) | 1987-04-16 | 1987-04-16 | Manufacturing method of base material for single mode and optical fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07106924B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0767147A1 (en) * | 1995-06-30 | 1997-04-09 | AT&T IPM Corp. | Single mode optical transmission fiber, and method of making the fiber |
FR2823198A1 (en) * | 2001-04-09 | 2002-10-11 | Cit Alcatel | METHOD FOR MANUFACTURING LARGE CAPACITY PREFORMS BY MCVD |
JP2003012337A (en) * | 2001-06-28 | 2003-01-15 | Shin Etsu Chem Co Ltd | Method for designing and producing preform for optical fiber |
JP2014196219A (en) * | 2013-03-29 | 2014-10-16 | 住友電気工業株式会社 | Method of producing glass preform for optical fiber, glass preform for optical fiber and method of calculating optical characteristic of optical fiber |
JP2019511751A (en) * | 2016-03-29 | 2019-04-25 | コーニング インコーポレイテッド | Low bending loss optical fiber |
-
1987
- 1987-04-16 JP JP9201087A patent/JPH07106924B2/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0767147A1 (en) * | 1995-06-30 | 1997-04-09 | AT&T IPM Corp. | Single mode optical transmission fiber, and method of making the fiber |
FR2823198A1 (en) * | 2001-04-09 | 2002-10-11 | Cit Alcatel | METHOD FOR MANUFACTURING LARGE CAPACITY PREFORMS BY MCVD |
US6988379B2 (en) | 2001-04-09 | 2006-01-24 | Alcatel | Method of manufacturing large capacity preforms by MCVD |
JP2003012337A (en) * | 2001-06-28 | 2003-01-15 | Shin Etsu Chem Co Ltd | Method for designing and producing preform for optical fiber |
JP2014196219A (en) * | 2013-03-29 | 2014-10-16 | 住友電気工業株式会社 | Method of producing glass preform for optical fiber, glass preform for optical fiber and method of calculating optical characteristic of optical fiber |
JP2019511751A (en) * | 2016-03-29 | 2019-04-25 | コーニング インコーポレイテッド | Low bending loss optical fiber |
Also Published As
Publication number | Publication date |
---|---|
JPH07106924B2 (en) | 1995-11-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071115 Year of fee payment: 12 |