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| Number | Title | Issue Date |
| 7406244 | Method of using an ultrathin optical element The present invention provides an ultra-thin high-precision glass optic and method of manufacturing the same. The optic has an axial thickness that is less than 1,000 microns. A pattern and/or coating is disposed on a surface of the optic to provide attenuation of l... | 07/29/2008 |
| 7350378 | Method for producing rotationally symmetrical quartz glass crucibles In a device (5) for the manufacture of a quartz glass crucible (2), one section (14, 15) of a wall (13) of the rotating quartz glass crucible (2) is heated at one time by means of at least two electrode arrangements (7, 8) d... | 04/01/2008 |
| 6988380 | Method of silica optical fiber preform production A method is disclosed for the manufacture of optical fiber preforms using plasma enhanced chemical vapor deposition (PECVD). The invention consists of a cylindrical reactor in which material such as flourine-doped silica glass is deposited on a cylindrical silica ro... | 01/24/2006 |
| 6951637 | Method and device for producing globular grains of high-puroty silicon having a diameter of between 50 μm and 300 μm and use of the same The invention relates to a method and a device for producing globular grains of high-purity silicon by atomising a silicon melt (6) in an ultrasonic field (10). Globular grains having a grain size of 50 μm can be produced by means of said method and d... | 10/04/2005 |
| 6877344 | Preparation of optical fiber An optical fiber is prepared by applying a liquid electron beam-curable resin composition to a bare optical fiber or a coated optical fiber having a primary or secondary coating on a bare optical fiber, irradiating electron beams to the resin composition on the opti... | 04/12/2005 |
| 6849307 | Method of manufacturing an optical fiber, a preform rod and a jacket tube as well as the optical fiber manufactured therewith A method of manufacturing an optical fiber and related devices using an apparatus having an elongated microwave guide coupled to a resonant cavity formed of an outer cylindrical wall and inner cylindrical wall having a slit with a width W and configured to deliver m... | 02/01/2005 |
| 6843076 | Single step laydown method of making dry fiber with complex fluorine doped profile A method of making an optical waveguide preform includes forming a preform including a first portion and a second radial portion, wherein the second portion includes a dopant, and wherein the first portion exhibits a density greater than the second portion. The meth... | 01/18/2005 |
| 6830781 | Method for producing an SiO2 blank and apparatus for performing said method In a known method for producing an SiO2 blank, SiO2 particles are formed in a burner flame assigned to a deposition burner and are deposited under the effect of an electrical field on a deposition surface of a carrier rotating about its longitu... | 12/14/2004 |
| 6823110 | Method to stabilize and adjust the optical path length of waveguide devices A method for adjusting a photosensitive optical waveguide having an optical path length to a stabilized desired optical path length. The method includes the step of changing the optical path length of the photosensitive optical waveguide by exposing at least a first... | 11/23/2004 |
| 6763686 | Method for selective photosensitization of optical fiber A method for increasing the photosensitivity of a selected portion of an optical fiber and for producing a grating in the selected portion of an optical fiber. The method includes the step of placing the selected portion of the optical fiber in a hydrogen containing... | 07/20/2004 |
| 6705123 | Making a photosensitive fiber with collapse of a MCVD tube that is in a small positive pressure atmosphere The present invention includes a method of making a preform for an enhanced photosensitive fiber comprising depositing successive layers of optical material the inside a tube using modified chemical vapor deposition, and collapsing the layers of optical material in ... | 03/16/2004 |
| 6705125 | Reduction of damage initiation density in fused silica optics via UV laser conditioning The present invention provides a method for reducing the density of sites on the surface of fused silica optics that are prone to the initiation of laser-induced damage, resulting in optics which have far fewer catastrophic defects and are better capable of resistin... | 03/16/2004 |
| 6706154 | Method for fabricating integrated optical components using ultraviolet laser techniques A process for forming an integrated optical device in a substrate, comprising the steps of: providing a substrate having a base index of refraction; providing a UV light beam; focusing the beam on a portion of the substrate in order to form a region of increased ref... | 03/16/2004 |
| 6621961 | Self-alignment hybridization process and component A method of forming a hybrid optical component includes the steps of masking and etching a pattern on a core layer of a planar optical component to define at least one alignment element and an optical element and subsequently overcladding the optical elem... | 09/16/2003 |
| 6606442 | Optical waveguide component and a method of producing the same An optical waveguide component has a first optical member in which a predetermined first core pattern groove is formed and a second optical member in which a predetermined second core pattern groove is formed, the first and second optical members being co... | 08/12/2003 |
| 6604387 | Method of inducing maximum non-linearities into silica for phase modulators & switches A process of poling a silica material such as an optical fiber whereby electro-optic non-linearities are induced so that the material can function as a phase modulator and switch in optical communications applications. The poling is effected at an elevate... | 08/12/2003 |
| 6598425 | Method for collecting soot A method and apparatus for manufacturing optical components. A burner generates soot, and a surface area collector collects the soot. The burner is disposed such that the soot collected within the surface area collector is substantially not reheated by su... | 07/29/2003 |
| 6588236 | Method of processing a silica glass fiber by irradiating with UV light and annealing A processing method of a silica glass fiber, which is applicable to a long fiber, to improve its UV resistance by UV irradiation and heat treatment. Initially, a heating furnace 1 is positioned such that the left end of the silica glass fiber is within th... | 07/08/2003 |
| 6568220 | Method of fabricating optical fiber gratings maximizing residual mechanical stress in the optical fibers An optical fiber for maximizing residual mechanical stress and an optical fiber grating fabricating method using the optical fiber are provided. The optical fiber includes a core formed of silica, for propagating light, and a cladding formed of boron-dope... | 05/27/2003 |
| 6544914 | Synthetic quartz glass for optical member, process for producing the same, and method of using the same A process for producing a synthetic quartz glass for an optical member, which comprises a step of irradiating a synthetic quartz glass having an OH group content of 50 ppm or lower with vacuum ultraviolet light having a wavelength of 180 nm or shorter to ... | 04/08/2003 |
| 6437054 | Composition of polyester sulfonate salt ionomer, polyamide and polyepoxide A thermoplastic resin composition comprises a compatible resin blend of a polyester sulfonate salt ionomer and a polyamide and at least one difunctional epoxy compound having at least one cyclohexane ring moiety and two terminal epoxy functional groups, w... | 08/20/2002 |
| 6381987 | Process for making opaque quartz glass and opaque component made according to the process Based on a known process for the manufacture of opaque quartz glass, by mixing SiO2 particles and an additive which is volatile at a melting temperature, forming a body and melting said body with an advancing melt front forming in the body, it ... | 05/07/2002 |
| 6379873 | Method and apparatus for the construction of photosensitive waveguides There is disclosed a method of constructing photosensitive waveguides on silicon wafers through the utilization of a Plasma Enhanced Vapor Deposition (PECVD) system. The deposition is utilized to vary the refractive index of resulting structures when they... | 04/30/2002 |
| 6339033 | Silica glass having superior durability against excimer laser beams and method for manufacturing the same A silica glass is provided for use in an optical system processing an excimer laser beam. The silica glass has a molecular hydrogen concentration of about 5×1018 molecules/cm3 or less and is substantially free from defects which bec... | 01/15/2002 |
| 6314765 | Method and apparatus for controlling the shape and position of a deformable object A method and apparatus for controlling the shape and position of a deformable object are described. At least a portion of an object is heated to a temperature sufficient to render the heated portion deformable by a force. An image profile of the heated po... | 11/13/2001 |
| 6311524 | Accelerated method for increasing the photosensitivity of a glassy material A method for rapidly increasing the photosensitivity of an optical fiber comprising the step of providing an optical fiber comprising a glassy material and a thermally-stable coating. The thermally-stable coating has a thermally-stable exposure band, wher... | 11/06/2001 |
| 6289699 | Wavelength selective optical couplers A wavelength selective optical fiber coupler having various applications in the field of optical communications is disclosed. The coupler is composed of dissimilar waveguides in close proximity. A light induced, permanent index of refraction grating is re... | 09/18/2001 |
| 6272886 | Incremental method of producing multiple UV-induced gratings on a single optical fiber The present invention is a process for manufacturing an optical fiber Bragg grating, which in a preferred embodiment includes the steps of: (a) removing at least a portion of a removable coating on an optical fiber element in at least one predetermined se... | 08/14/2001 |
| 6266978 | Method for producing synthetic quartz glass for use in ArF excimer laser lithography A simple method for producing a synthetic quartz glass having excellent homogeneity and high transmittance, which is useful as an optical material in producing steppers equipped with an ArF excimer laser as a radiation source. A method for producing a syn... | 07/31/2001 |
| 6265476 | Radiation-curable binder compositions having high elongation and toughness after cure Radiation-curable compositions, having high elongation at break and toughness after cure can include the following pre-mixture components: a) a polymer, oligomer or monomer having at least one (meth)acrylate functional group; b) an oligomer or monomer, exclusi... | 07/24/2001 |
| 6262426 | Technique and process for the imaging and formation of various devices and surfaces A technique is described for the formation of nano and micro-scale patterns and optical wave-guides, by using Bipolar Electrochemistry. Atoms are deposited or removed from a surface by creating and moving ions into or out of a medium by the use of electri... | 07/17/2001 |
| 6209356 | Method of making polarization-maintaining optical fibers To manufacture polarization-maintaining optical fibers, a fiber is directly and continuously irradiated with at least one beam of UV radiation during drawing and before application of external coatings.... | 04/03/2001 |
| 6192712 | Optical waveguide fabrication method A method for fabricating an optical waveguide, comprising the following steps. That is, forming an optical waveguide on surface of a substrate via an atmospheric pressure chemical vapor deposition (AP-CVD) method using a silica raw material containing an ... | 02/27/2001 |
| 6170297 | Jig for manufacturing long period grating filter and apparatus and method for manufacturing long period grating filter using the same An apparatus and method used in manufacturing a long period grating filter are provided. The apparatus used in manufacturing a long period grating filter includes an upper body including a plurality of teeth spaced from each other by a predetermined dista... | 01/09/2001 |
| 6160606 | Optical equivalents of fiber optic face plates using irradiation sensitive glass Optical plates which have columnar features approximately in the direction of light propagation which are capable of total internal reflection, a controllable numeric aperture (NA) at input and output surfaces, rotational azimuthal averaging and translati... | 12/12/2000 |
| 6131414 | Method for making a preform for optical fibers by drawing a mother ingot A method for drawing a mother ingot into a preform for optical fibers comprises providing a mother ingot, subjecting the mother ingot to measurement of a distribution of refractive index along radial directions thereof to determine a ratio of a core diame... | 10/17/2000 |
| 6094941 | Process for manufacturing optical member for excimer laser An excellent quartz glass optical member having stable laser beam resistance, can be obtained by preparing quartz glass in a process having: a first step of subjecting a starting material obtained from silicon halide, alkoxysilane, alkylalkoxysilane, etc. to a... | 08/01/2000 |
| 6058739 | Long life fused silica ultraviolet optical elements The present invention provides a process for substantially extending the useful life of fused silica elements used in high energy ultraviolet optical systems. The fused silica bulk material is pre-compacted by illuminating it with radiation prior to final... | 05/09/2000 |
| 6050109 | Method for making long-period fiber gratings Applicants have discovered that exposing optical fiber to an electrical arc produces a perturbation in its refractive index and that gratings can be made by exposing fiber to arcs at a series of locations along its length. In a first variation of the proc... | 04/18/2000 |
| 6014488 | Coated optical fibers having strippable primary coatings and processes for making and using same The invention relates to coated optical fibers which are coated with a particular radiation-cured primary coating layer composition. The fibers which are coated comprises a glass core and a glass cladding layer. The core, for example may comprises silica ... | 01/11/2000 |
