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| Number | Title | Issue Date |
| 7874180 | Chemical powder deposition method for the manufacture of optical fiber preforms and optical fibers The specification describes the production of optical fibers and optical fiber preforms using Chemical Powder Deposition (CPD). In this process a slurry of silica powders and dopant powders in a liquid carrier is prepared and the inside surface of a silica glass sta... | 01/25/2011 |
| 7320897 | Electroluminescence device with nanotip diodes A nanotip electroluminescence (EL) diode and a method are provided for fabricating said device. The method comprises: forming a plurality of Si nanotip diodes; forming a phosphor layer overlying the nanotip diode; and, forming a top electrode overlying the phosphor ... | 01/22/2008 |
| 7221842 | Coated optical fiber and optical fiber coating system including a fast-gelling primary coating The present invention provides optical fiber coating systems and coated optical fibers. According to one embodiment of the invention, a coated optical fiber includes an optical fiber having a core and a cladding; and a primary coating encapsulating the optical fiber... | 05/22/2007 |
| 7201939 | Optical fiber with antireflection coating, and method for manufacturing the same An optical member (for example, optical fiber) is dipped in a coating solution having a film forming material dissolved therein to form an antireflection film on the end surface of the optical member. When the optical member is pulled up from the coating solution, t... | 04/10/2007 |
| 7171093 | Method for preparing an optical fibre, optical fibre and use of such Methods for coating an optical fiber with optical fiber Bragg grating (FBG) with a hermetic coating, particularly a coating of carbon, are employed to avoid ingress of gases, vapors or fluids in the ambient environment. This ingress can be from water or hydrogen, wh... | 01/30/2007 |
| 7016576 | Method for producing an optical fibre telecommunications cable with reduced polarization mode dispersion An optical cable for telecommunications having an optical core and a plurality of protecting and reinforcing elements or avers placed around the optical core. The optical core has a central reinforcing element, a polymer layer, a plurality of optical fibers incorpor... | 03/21/2006 |
| 7010203 | Optical fiber manufacturing method and optical fiber An object of the present invention is to provide an optical fiber manufacturing method and an optical fiber in which an increase in the transmission loss is suppressed by preventing hydroxyl group from entering near the core portion. This invention provides a... | 03/07/2006 |
| 7000435 | Roll coating of glass fibers A roll coater for placing binder on the fibers prior to being wound around a rotating drawing drum. The drawing drum draws fibers out of orifices in the bottom of a slowly reciprocating furnace. The fibers form a mat on the drawing drum that is later removed and exp... | 02/21/2006 |
| 6993229 | Method of making spun optical fiber with low PMD An optical fiber, and a method of making such optical fiber, wherein the optical fiber exhibits a beatlength greater than about 0.5 meters, and the fiber is spun to provide a polarization mode dispersion in the spun state of said fiber which is less than 0.05 ps/km | 01/31/2006 |
| 6975800 | Fused silica-based optical waveguide and method for its manufacture The invention relates to an optical waveguide (optical fiber) based on quartz glass having reduced internal mechanical stresses. In prior art optical waveguides, the internal mechanical stresses are primarily due to the production process, namely due to the differen... | 12/13/2005 |
| 6921452 | Light redirective display panel and a method of making a light redirective display panel An optical display panel which provides improved light intensity at a viewing angle by redirecting light emitting from the viewing screen, and a method of making a light redirective display panel, are disclosed. The panel includes an inlet face at one end for receiv... | 07/26/2005 |
| 6915051 | Spacer for optical fiber cable, method for producing said spacer, and optical fiber cable using said spacer In applying an intermediate coating layer of thermoplastic resin onto the periphery of a central tensile member and applying a main coating of polyethylene resin, having continuous spiral grooves that are for accommodating optical fibers and are inverted periodicall... | 07/05/2005 |
| 6859600 | Coated optical fiber and optical fiber ribbon and method for the fabrication thereof A coated optical fiber includes a fiber coating having an unblended primary portion on the optical fiber, an unblended secondary portion, and a blended portion intermediate the unblended primary and secondary portions. The thickness of the blended portion is greater... | 02/22/2005 |
| 6779365 | Roll coating of glass fibers A roll coater for placing binder on the fibers prior to being wound around a rotating drawing drum. The drawing drum draws fibers out of orifices in the bottom of a slowly reciprocating furnace. The fibers form a mat on the drawing drum that is later removed and exp... | 08/24/2004 |
| 6767579 | Methods for protecting silica-containing article in optical fiber manufacturing A method of protecting a silica-containing article used in the manufacture of an optical fiber includes the step of applying to the silica-containing article a protective layer that facilitates removal of particulates that deposit on the protective layer and that ab... | 07/27/2004 |
| 6739157 | Method of applying a protective organic coating to an optical glass fibre The invention relates to a method of applying a protective organic coating to an optical glass fiber, said glass fiber is drawn from a preform and passed through a liquid which contains the material for forming said organic coating, once the amount of liquid coating... | 05/25/2004 |
| 6733824 | Protecting optical fiber articles during shipment between factories A method of manufacturing a silica-containing article used in the manufacture of an optical fiber includes the steps of applying to the silica-containing article a protective layer, and then transporting the coated article to a second factory for further processing.... | 05/11/2004 |
| 6698246 | Method for making nanocrystalline glass-ceramic fibers A method for making a glass ceramic, optoelectronic material such as a clad optical fiber or other component for use in an optoelectronic device. The method comprises preparing a glass composition batch to yield a precursor glass for a nanocrystalline gla... | 03/02/2004 |
| 6615614 | Method for preparing optical waveguide substrate An optical waveguide substrate is prepared by forming grooves in a silicon substrate in accordance with the pattern of a desired waveguide device, thermally oxidizing the silicon substrate to form a peripheral quartz layer surrounding the grooves, burying... | 09/09/2003 |
| 6612134 | Method of curing coated optical fibers The present invention relates to a method of making an optical fiber product. In particular, this manufacturing method is characterized in that, between a drawing step in which a coated optical fiber comprising a glass fiber and a primary coating layer di... | 09/02/2003 |
| 6550282 | Method and apparatus for manufacturing an optical fiber from a preform A method for manufacturing an optical fiber (100) having low PMD, comprises the steps of: a) heating at least one end portion (3a) of a preform (3); b) drawing an optical fiber (100) from a free end of said heated end portion (3a) along a fiber drawing axis (I... | 04/22/2003 |
| 6428204 | Method of making a coated optical fiber comprising measuring the delamination resistance of the coating at two different temperatures Making a polymer-clad optical fiber comprising a step of determining at a plurality of temperatures the delamination resistance of the polymer coating from fiber. The delamination resistance at ambient temperature can be compared with a predetermined targ... | 08/06/2002 |
| 6418757 | Method of making a glass preform A method of making a glass article such as an optical waveguide preform is disclosed. The method comprises drawing a rod in at least two steps. In the first step an elongated, consolidated preform having an aperture therethrough is drawn to a reduced diam... | 07/16/2002 |
| 6327876 | Method for producing a coated optical fiber with reduced polarization mode dispersion An apparatus and method for forming a optical fiber (102) which includes a furnace (104) for softening an optical fiber blank (106); a tractor (114) for drawing the optical fiber (102) from the softened optical fiber blank (106); and a first applicator (1... | 12/11/2001 |
| 6229945 | Photo induced grating in B2O3 containing glass It has been demonstrated that B containing glasses are sensitive to radiation in the band 225-275 nm and, therefore, B2 O3 glasses are particularly adapted to receive refractive index modulation, e.g., to make reflection gratings. Gl... | 05/08/2001 |
| 6220059 | Method of coating a UV-fiber with blocking layers and charging the fiber with hydrogen or deuterium A method of producing an optical component for the transmission of UV light is provided. An optical fiber is prepared from synthetic quartz glass or from doped synthetic quartz glass with a transmission region for the transmission of UV light, and the tra... | 04/24/2001 |
| 6189341 | Method of making an optical fiber with digestion of retracting particles on the preform In accordance with the invention, particle contamination in drawing optical fiber is reduced by coating the glass preform with a particle-digesting coating prior to introducing the preform into the induction furnace. At least the end of the preform should... | 02/20/2001 |
| 6189343 | Apparatus and method for forming an optical fiber An apparatus for forming a optical fiber which includes a furnace for softening an optical fiber blank; a tractor for drawing the optical fiber from the softened optical fiber blank; and a first applicator for applying a coating of a first coating materia... | 02/20/2001 |
| 6185962 | Method for forming pre-impregnated fibers suitable for processing into a composite article A method is disclosed for forming coated fibers suitable for making a composite article. A plurality of fibers are coated with an aqueous- or non-aqueous-based chemical treatment containing a curable resin such that the resin on the fibers is in a partial... | 02/13/2001 |
| 6145345 | Modified chemical vapor deposition using independently controlled thermal sources The deposition rate of MCVD processes is enhanced by applying at least a first and a second independently controlled heat source to a plurality of reactants which are used to form deposited particulate matter. The first heat source is adjusted so as to pr... | 11/14/2000 |
| 6097867 | Technique for fabrication of a poled electro-optic fiber segment A low-cost fabrication technique, readily extensible to volume manufacturing is presented for an electro-optically active fiber segment (31) that can be simply integrated into optoelectronic devices. The fabrication technique offers a dielectric isolation... | 08/01/2000 |
| 6044665 | Method for coating an optical fiber A method for coating an optical fiber (1) has the optical fiber (1) exiting the longitudinal direction through a coating nozzle (10) from a volume (11) which is filled with a liquid hardenable coating material (6). The surface of the fiber is spaced from ... | 04/04/2000 |
| 5999681 | Chemical treatment for silica-containing glass surfaces Dehydroxylated, silica-containing, glass surfaces are known to be at least partially terminated by strained siloxane rings. According to the invention, a surface of this kind is exposed to a selected silane compound or mixture of silane compounds under re... | 12/07/1999 |
| 5996376 | Methods of forming optical rods including three-dimensional patterns on end faces thereof A method of patterning a plurality of optical rods includes bonding a plurality of optical rods into an array wherein each of the optical rods is aligned so that an exposed end face of each of the optical rods is oriented in a common direction. The expose... | 12/07/1999 |
| 5961684 | Sizing composition for glass strands, process using this composition and resulting products A glass yarn sizing composition consisting of a solution having a viscosity of at most 400 cP and including less than 5 wt. % of solvent and at least one basic heat-polymerisable system which includes at least 60 wt. % of components having a molecular wei... | 10/05/1999 |
| 5908484 | Method of making a coated optical fiber comprising measuring the delamination resistance of the coating Measurement of the delamination resistance of polymer coated optical fiber can provide valuable information for quality control and/or coating development, and a method of making polymer coated optical fiber that includes determination of the delamination... | 06/01/1999 |
| 5858053 | Method for coating an optical fiber with transducer in a bath of coating material An improved method of coating an optical fiber is disclosed. A transducer is submerged in a container of liquid coating material and activated so that it causes the formation of a wave of coating material within the container. The optical fiber is then dr... | 01/12/1999 |
| 5858052 | Manufacture of fluoride glass fibers with phosphate coatings The specification describes a method for the manufacture of fluoride glass optical fibers which are covered with a protective coating of phosphate glass. The coating is produced by dipping the fluoride glass preform in a phosphate glass melt prior to draw... | 01/12/1999 |
| 5812725 | Method for increasing adhesion between a coating and an optical glass fiber electron beam pretreatment This invention provides a method of increasing adhesion of radiation-cured, inner primary coatings on glass optical fibers. A glass optical fiber drawing tower has a controllable variable amperage electron beam for exposing different sections of a glass o... | 09/22/1998 |
| 5811376 | Method for making superconducting fibers A process for making a superconducting fiber or wire (10) is provided. The superconducting fiber or wire (10) has a superconducting core (12) and a glass cladding outer layer (14). The process comprises melting a superconducting composition (16) and a gla... | 09/22/1998 |
