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US20130036770 METHOD FOR PRODUCING GLASS BASE MATERIAL  
A glass base material producing method produces a glass base material through fixing, deposition, pullout, consolidation, and collapse steps in sequence, while the fixing step inserts and fixes a...
US20120297837 METHOD FOR PRODUCING GLASS PREFORM  
Provided is a method for manufacturing glass preforms which is suitable for making an optical fiber having a less transmission loss in the wavelength band of 1.38 μm. The glass-preform...
US20060086147 Method of manufacturing glass particulate stacked body  
An object of the present invention is to provide a method for manufacturing a glass particle deposited body in which a taper portion formed at an end portion of the glass particle deposited body...
US20140338400 METHOD FOR MANUFACTURING SOOT GLASS DEPOSIT BODY AND BURNER FOR MANUFACTURING SOOT GLASS DEPOSIT BODY  
A soot glass deposit body is manufactured by placing a starting rod and a burner 22 for producing glass particulates in a reaction container, introducing a source material gas to the burner 22...
US20070169514 Method for manufacturing article comprising deposited fine glass particles  
A method of producing a glass-particle-deposited body that has a small diameter variation and the like resulting from alteration of the deposition condition is offered. When the...
US20070137253 Reduced striae low expansion glass and elements, and a method for making same  
The invention is directed to a method for reducing striae in ultra-low expansion glass by heat-treating the glass at temperatures above 1600° C. for a time in the range of 72-288 hours. In one...
US20050199014 Apparatus for producing glass particles deposit  
In an apparatus for producing glass particles deposit according to the present invention, a plurality of glass particle synthesis burners are placed on a front face of a reaction vessel, and at...
US20060137404 Method for manufacturing glass rod  
A method for manufacturing a glass rod includes introducing a glass source material gas, an inert gas, a flammable gas, and a combustion assisting gas to a multi-tube burner, where the multi-tube...
US20060016225 Process for producing an optical-fibre preform, optical-fibre preform and optical fibre associated therewith  
The invention relates to the field of optical fibres, to optical-fibre preforms and to processes for producing a final optical-fibre preform obtained by plasma built-up on a primary preform. The...
US20130133375 METHOD FOR PRODUCING SYNTHETIC QUARTZ GLASS  
A method for producing synthetic quartz glass comprises providing a liquid SiO2 feedstock material containing octamethylcyclotetrasiloxane D4, vaporizing the SiO2 feedstock material into vapor,...
US20120291494 MANUFACTURING METHOD FOR GLASS BASE MATERIAL  
Provided is a method for manufacturing glass preforms with high yield. In the glass-preform manufacturing method according to the present invention, a glass preform is produced through a fixing...
US20140174133 METHODS FOR FORMING OPTICAL FIBER PREFORMS WITH SELECTIVE DIFFUSION LAYERS  
Methods for forming optical fiber preforms are disclosed. According to one embodiment, a method for forming an optical fiber preform includes forming a preform core portion from silica-based glass...
US20150033799 GLASS PARTICLE DEPOSIT PRODUCING METHOD AND GLASS PREFORM PRODUCING METHOD  
A glass particle deposit producing method capable of preventing the variation in the outside diameter of a glass particle deposit and enhancing the yield of a glass raw material is provided. A...
US20070089461 Method of producing porous glass preform for optical fiber  
A method of producing a porous glass preform for an optical fiber includes supplying glass material gas and combustion gas to a burner for synthesizing glass particles to produce glass particles,...
US20060288739 Plasma torch and preform fabrication system using the method  
A system for fabricating an optical fiber preform including glazing the outside surface of the preform using inductive heating, the system including a plasma torch for localized heating of the...
US20130091900 POROUS GLASS MATRIX PRODUCING BURNER AND POROUS GLASS MATRIX PRODUCING METHOD  
Provided is a porous glass matrix producing burner 10, wherein a third gas jetting opening 17, which is the most outward one of a plurality of gas jetting openings, is clogged by a clogging member...
US20080271495 Reduction of optical fiber cane/preform deformation in consolidation  
According to an embodiment of the invention a method of manufacturing optical fiber cane comprises the steps of: (i) providing a core rod manufactured of relatively low viscosity glass; (ii)...
US20150143852 METHOD FOR REDUCING PROCESSING TIME FOR OPTICAL FIBER PREFORMS  
A method for forming an optical glass preform from a soot preform is provided. The method includes forming a soot preform, placing the soot preform in a furnace, and applying a vacuum through a...
US20060162389 Burner for chemical vapour deposition of glass  
A burner for a vapour deposition process has a central nozzle for ejecting a glass precursor material, at least a crown of nozzles surrounding said central nozzle for ejecting a flame reactant,...
US20050172676 Method for the production of a cylindrical quartz glass body having a low oh content  
According to a previously known method for producing a cylindrical quartz glass body having a low OH content, first an elongate, porous soot body is produced on a rotating support by...
US20050144984 Fabrication method and device for porous optical fiber preform  
Disclosed are fabrication method and device for a porous optical fiber preform. The fabrication method includes the steps of (a) rotating one or more rotating disks in a deposition furnace,...
US20120231271 PROCESS FOR PRODUCING A QUARTZ GLASS CYLINDER AND ALSO SUPPORT FOR CARRYING OUT THE PROCESS  
In a known process for producing a quartz glass cylinder, a porous soot tube, which is sintered to form the quartz glass cylinder, is produced by depositing SiO2 particles on an outer cylindrical...
US20060213229 Glass base material manufacturing apparatus and method thereof  
A glass base material manufacturing apparatus for manufacturing a glass base material comprising: a plurality burners, arranged in a row at a predetermined intervals along the longitudinal...
US20130133378 METHOD FOR PRODUCING SYNTHETIC QUARTZ GLASS  
A known method for producing synthetic quartz glass comprises the method steps: providing a liquid SiO2 feedstock material, which contains octamethylcyclotetrasiloxane D4 as the main component,...
US20100050696 METHOD FOR MANUFACTURING OPTICAL FIBER PREFORM  
A method for manufacturing an optical fiber preform of the invention is a method for manufacturing an optical fiber preform, which forms a deposition portion composed of glass fine particles on a...
US20130139554 METHOD FOR MANUFACTURING GLASS PREFORM  
The present invention provides a method for producing a glass preform capable of improving the deposition efficiency of produced glass fine particles to a starting rod or a glass soot body. The...
US20050000250 Method for producing a tube consisting of quartz glass, tubular semi-finished product consisting of porous quartz glass, and the use of the same  
In a known method for producing a quartz glass tube by means of flame hydrolysis of a silicon-containing start component, SiO2-containing particles are produced, said particles are deposited on a...
US20080053155 Optical fiber preform having large size soot porous body and its method of preparation  
A method for producing an optical fiber preform having a large size soot porous body is provided wherein opposite ends of the rod are heated by heating means to achieve a predetermined temperature...
US20070065082 Method for preparation of core rod assembly for overcladding, and perform and fiber produced from such core rod assembly  
A method for preparation of core rod assembly suitable for overcladding comprising the steps of preparing core rod having reduced diameter, fixing glass rods at each of the opposite ends of the...
US20050092030 Method and apparatus for depositing glass soot  
The invention includes methods and apparatus for depositing soot onto a glass surface to minimize water in the deposited soot and the diffusion of the water into the glass surface. The invention...
US20060075786 Methods for manufacturing low water peak optical waveguide incorporating a porous core mandrel  
A method of manufacturing a cylindrical glass optical waveguide preform having a low water content centerline region, for use in the manufacture of optical waveguide fiber, is disclosed. The...
US20050144986 Method of making an optical fiber preform  
A method for manufacturing an optical fiber preform and fiber. According to the method, a first glass rod is formed, preferably by an OVD method, with a refractive index delta preferably between...
US20080176091 Optical fiber base material and manufacturing method therefore  
There is provided a method for manufacturing an optical fiber base material. The method includes: connecting a dummy rod 3 to an end of a target formed of a quartz glass rod to form a rod with...
US20050262876 Method for plasma overcladding a fluorine-doped optical fiber preform tube  
The field is that of methods for providing fiber-optic final preforms obtained by external plasma overcladding build-up around a primary preform. The method involves providing a final preform...
US20090211301 METHOD OF FABRICATING AN OPTICAL FIBER PREFORM AND A BURNER THEREFOR  
A method of fabricating an optical fiber preform, capable of depositing glass particles with high deposition rate without reducing deposition efficiency and fabricating an optical fiber preform...
US20140060118 PRESSED, MULTILAYERED SILICA SOOT PREFORMS FOR THE MANUFACTURE OF SINGLE SINTER STEP, COMPLEX REFRACTIVE INDEX PROFILE OPTICAL FIBER  
Manufacturing an optical fiber by using an outside vapor deposition technique for making a substrate, applying one or more layers to the substrate using a radial pressing technique to form a soot...
US20060144094 Method for the production of a hollow cylinder made of synthetic quartz glass with the aid of a holding device, and appropriate holding device for carrying out said method  
In a previously known method for producing a hollow cylinder made of synthetic quartz glass, a silicon-containing compound is flame-hydrolyzed and SiO2 particles are deposited layer by layer on a...
US20060185397 Multimode optical fiber and method for manufacturing same  
An improved MCVD process reduces a rippling structure in the refractive-index profile of a graded-index, multiple-mode optical fiber by incorporating N2O, CO, or NF3 gas in the gas stream during...
US20070051135 Method for manufacturing porous-glass material for optical fiber, and glass base material  
A method for manufacturing a porous-glass material for optical fiber performed in a reaction apparatus having a plurality of burners for producing glass particles toward a initial base material...
US20070068198 Method of manufacturing glass base material for optical fiber  
A method of manufacturing a glass base material is provided. The glass base material according to the present invention can prevent an initial glass material from being scratched by a gripping...
US20140144188 GLASS BASE MATERIAL MANUFACTURING APPARATUS AND METHOD THEREOF  
An apparatus for manufacturing a glass base material, which is a base material of an optical fiber, the glass base material having a core rod as a central axis, comprises a holding unit having a...
US20120118020 METHOD OF PRODUCING OPTICAL FIBER PREFORM AND OPTICAL FIBER  
A method of producing an optical fiber preform includes preparing a glass preform that has a hole extending in a longitudinal direction formed on one end of the glass preform in such a manner that...
US20120321891 MANUFACTURING METHOD OF POROUS SILICA BODY, MANUFACTURING METHOD OF OPTICAL FIBER PREFORM, POROUS SILICA BODY, AND OPTICAL FIBER PREFORM  
A manufacturing method for a porous silica body including: a step of arranging a plurality of burners around an optical fiber core rod; and a deposition step of depositing a plurality of soot...
US20150043880 METHODS FOR PRODUCING A SEMIFINISHED PART FOR THE MANUFACTURE OF AN OPTICAL FIBER WHICH IS OPTIMIZED IN TERMS OF BENDING  
Methods for producing a semifinished part for the manufacture of an optical fiber are disclosed. The methods are optimized in terms of bending. The methods include the steps of providing a shell...
US20070289332 Method for Overcladding an Optical Fiber Preform  
Method for overcladding an optical fiber preform with a given target diameter (D0) of the final preform includes providing a primary preform to be overcladded, and successively depositing first...
US20070079635 Apparatus and method for preparing optical fiber preform having desired cone shape  
An apparatus for preparing a preform cone having desired shape and dimensions, including diameter is provided, wherein said apparatus comprises a box type structure having a coupling means...
US20120321260 OPTICAL WAVEGUIDES HAVING FLATTENED HIGH ORDER MODES  
A deterministic methodology is provided for designing optical fibers that support field-flattened, ring-like higher order modes. The effective and group indices of its modes can be tuned by...
US20070087194 Danner pipe  
The present invention relates to a mandrel for producing glass tubes or rods, particularly for the Vello process, the A-drawing process and preferably for the Danner process. The mandrel comprises...
US20120047959 SOOT RADIAL PRESSING FOR OPTICAL FIBER OVERCLADDING  
A method and apparatus for making an optical fiber preform. The apparatus has an outer wall and an inner wall. The outer wall surrounds the inner wall and the inner wall surrounds an inner cavity...
US20050072193 Apparatus and method for chemical deposition on a rod member in an optical fibre manufacturing process  
An apparatus and method for chemical deposition on a rod member having a support structure for supporting the rod member substantially coaxial to a deposition axis; a burner for depositing...

Matches 1 - 50 out of 70 1 2 >