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| Number | Title | Issue Date |
| 8069691 | Cleaving apparatus A method of cleaving an optical fiber and apparatus therefor including a hand tool wherein the optical fiber to be cleaved (6) has a natural path. The method of cleaving includes deflecting the optical fiber (6) away from its natural path in a first di... | 12/06/2011 |
| 7406243 | Optical fiber array substrate and method for producing the same An optical fiber array substrate 11 has, in one surface thereof, eight V-grooves 12 for securing eight optical fibers 14 aligned in parallel to each other, and V-shaped side grooves 13 formed outside of the respective outermost V-grooves ... | 07/29/2008 |
| 7377700 | Ferrule assembly A process for preparing terminated fibers comprising: (a) positioning at least one fiber in a ferrule such that a portion of the fiber extends beyond the mating face of the ferrule; (b) affixing the fiber relative to the ferrule; and (c) cleaving the portion of the ... | 05/27/2008 |
| 7258051 | Arrangement for cutting an optical fibre An arrangement for cutting an optical fibre comprises a fibre cutter for cutting the fibre. A motor is provided to operate the cutter. To start a cutting movement, the motor is controlled by a control unit in response to a start signal. The start signal is generated... | 08/21/2007 |
| 7216512 | Method of making an optical fiber by laser cleaving A field-installable connector includes a connector housing and a ferrule having front and rear opposed faces and at least one fiber bore defined longitudinally therethrough. A laser processed stub optical fiber is disposed within the one fiber bore of the ferrule an... | 05/15/2007 |
| 7086266 | Method of producing tapered or pointed cannula A method of producing a tubular device is provided. The method comprises providing a tubular stock having an axial passage, heating the tubular stock at a first heating location to form a softened section, the softened section separating a workpiece portion of the t... | 08/08/2006 |
| 7021083 | Manufacture of high purity glass tubes A glass tube for use in an optical fiber preform is produced by applying a first soot on an end face of a starting member to form an elongated, porous cylindrical soot core having a first density, and applying a second soot including SiO2 on the periphery... | 04/04/2006 |
| 7013678 | Method of fabricating graded-index optical fiber lenses A GRIN fiber lens is fabricated by the steps of providing a graded index glass preform, thinning the graded index preform to remove a sufficient thickness of the graded glass to establish a desired Δn, and drawing a graded index optical fiber from the thinned grade... | 03/21/2006 |
| 6978641 | Method for cutting glass rod and cutting device for use therein To provide a method and apparatus for parting a glass rod without causing a crack or rupture at a grasped root portion of the glass rod in parting the glass rod for producing a glass preform. The apparatus for parting the glass rod in a predetermined length b... | 12/27/2005 |
| 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 |
| 6901836 | Controlled rupture device for a structure operating in traction and equipment using same A device is presented including a first support element, a second support element (110) which is separate from the first support element, a structure placed in tension between the two support elements and a rupture device associated with the structure in tens... | 06/07/2005 |
| 6779363 | Method for pregobbing an optical fiber preform and system producing optical fiber therefrom A method for the pregobbing of an optical fiber preform to provide pre-optimized tip taper and system for drawing optical fiber therefrom. The downtime of an optical fiber drawing apparatus can be considerably shortened, by providing preforms that have a pre-optimiz... | 08/24/2004 |
| 6735984 | Making an optical fiber preform including reducing the length of a deposition layer The method is designed to be implemented in an installation provided with means enabling a preform held between two points by supporting end-pieces to be rotated and to be moved in translation. Heater means for heating the preform by means of a plasma torch are asso... | 05/18/2004 |
| 6644069 | Method of heating and processing an end of an optical fiber preform and apparatus for heating and processing an end of an optical fiber preform An end heating and processing method of an optical fiber preform. In this method, an optical fiber preform is processed by heating and melting an end of a vitrified optical fiber preform including a core portion and a cladding portion formed on an outer c... | 11/11/2003 |
| 6553789 | Quartz glass plates with high refractive index homogeneity A method produces homogenous quartz glass plates without streaks. The method is applied to starting quartz glass body which has an X--X geometrical axis and good refractive index homogeneity in its central area, and a refractive index homogeneity decreasi... | 04/29/2003 |
| 6532776 | Method and apparatus for fusing an optical fiber preform A method for fusing an optical fiber preform comprises fusing the preform while blowing an oxidative gas against the preform to be fused from upper and lower directions of a fusing burner unit. An apparatus for carrying out the method includes a plurality... | 03/18/2003 |
| 6456685 | Method and apparatus for cutting waveguides to precise differential lengths using time-domain-reflectometry An apparatus and method for cleaving optical waveguides to precise differential length are described. A first end of a waveguide is coupled to an input port of a reflectometer. A reference mirror is then positioned in a path of radiation propagating throu... | 09/24/2002 |
| 6427491 | Method for making fibers having cores with non-circular cross-sections An optical fiber with a non-circular cross-section is realized by creating a void having the desired cross-section in a housing and filling the void with an optical material. This structure is then collapsed to solidify it and drawn to desired dimensions.... | 08/06/2002 |
| 6341503 | Method and apparatus for making fiber optic couplers The present invention relates to a method for terminating the end of an optical fiber. In particular the present invention relates to a method for forming a low reflectance termination on an end of an optical fiber. The method including the step of tensio... | 01/29/2002 |
| 6322888 | Method for producing sized glass fibers and resulting products A process for producing sized glass yarns, which entails: a) drawing streams of molten glass from orifices located at a bottom of one or more dies, in a form of one or more fans of continuous filaments, b) assembling the filaments into one or more moving supports, ... | 11/27/2001 |
| 6305195 | Process for fabricating silica article involving joining of discrete bodies An improved process for fabricating a refractory dielectric article, in particular silica optical fiber, is provided. The fabrication process involves joining of two elongated bodies--typically silica preforms--end-to-end by use of an isothermal plasma to... | 10/23/2001 |
| 6249631 | Method and apparatus for cutting solid core fiber optic cable A method for preparing a fiber optic cable for a splice wherein a radial compressive strain is applied to the fiber optic cable and the fiber optic cable is cut adjacent to the applied radial compressive strain to create a splice end of the fiber optic ca... | 06/19/2001 |
| 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 |
| 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 |
| 6073465 | Method including making grooves in a fiber preform which is drawn to create fiber with improved mode coupling due to a resultant wandering of the core A method of making a fiber having a single mode absorptive core whose position relative to the cross sectional plane of the inner multimode cladding varies along the length of the fiber. A groove or grooves are made in the outer cladding of the preform. W... | 06/13/2000 |
| 5979189 | Method of separating and glazing an optical fiber preform The method of manufacturing a preform having a supporting core by effecting successive passes with a plasma torch while material is being supplied, and by effecting at least one glazing step with the plasma torch and without material being supplied includ... | 11/09/1999 |
| 5970750 | Method of making a fiber preform including a surface treatment to consolidate condensed material on the preform The invention relates to a method of performing surface treatment on a preform manufactured in an installation for manufacturing or building up preforms having supporting cores, the installation including at least rotation means having a horizontal axis o... | 10/26/1999 |
| 5839635 | Curved-angle cleaving of optical fibers A method and apparatus for curved-angle cleaving of optical fibers. The method requires the introduction of a flaw in an optical fiber to be cleaved, and the application of predetermined stress and strain to the optical fiber in the vicinity of the flaw t... | 11/24/1998 |
| 5837334 | Large sized quartz glass tube, large scale quartz glass preform, process for manufacturing the same and quartz glass optical fiber A quartz glass tube, produced by mechanically processing a natural/synthetic quartz glass mother material, having 50-300 mm$c; in outer diameter, from. 1 to 7 in outer to inner diameter ratio, 10 mm or more in thickness and 2% or less in thickness erro... | 11/17/1998 |
| 5674306 | Method and apparatus for drawing glass preform for optical fiber A glass preform for an optical fiber is effectively drawn by connecting dummy rods to both ends of the glass preform and connecting the dummy rods to fitting members.... | 10/07/1997 |
| 5649040 | Splicing aged optical fibers For improving mechanical characteristics of an aged optical glass fiber, the segment is retained between clamps, e.g. in a conventional splicing machine. Then the segment is heated to a high temperature in the vicinity of the softening temperature or melt... | 07/15/1997 |
| 5551968 | Method of forming a microlens at the tip of a fiber by jerking apart two fused fibers A low-cost, high performance 1×N fiber optic coupler where N>16 is presented. The coupler has a GRIN lens having an first optic fiber aligned with the optical axis of the lens at one end of the lens. The first optic fiber ends in a microlens. At the othe... | 09/03/1996 |
| 5411566 | Optical fiber spatial mode converter using periodic core deformation Efficient conversion between the LP01 and the LP11 modes in a two-mode optical fiber is realized in a fiber grating fabricated by forming a series of longitudinally-spaced cuts in the fiber cladding, and then annealing the fiber in t... | 05/02/1995 |
| 5382276 | Method and apparatuses for cutting a ribbon of an optical fibers obliquely A method of cutting an optical fiber ribbon obliquely, the ribbon being constituted by a plurality of optical fibers that are all parallel to a "longitudinal" axis of the ribbon, the fibers all being situated in the same horizontal plane referred to as th... | 01/17/1995 |
| 5312468 | Optical fiber cleavage method The invention relates to optical fiber cleavage method making it possible to obtain an oblique optical fiber end face, consisting in holding a segment of optical fiber between two separated supports, in displacing one of said supports with respect to the ... | 05/17/1994 |
| 5176728 | Method of making a mirror having extremely small aperture holes at other than normal angles to the surfaces of the mirror A process for manufacturing mirrors comprising notching the backside of a plate and etching it from one or both sides. The front side is plated and polished to a flat mirror-like-like surface. The plate is made from glass rods that have been fused togethe... | 01/05/1993 |
| 5080706 | Method for fabrication of cylindrical microlenses of selected shape The present invention provides a diffraction limited, high numerical aperture (fast) cylindrical microlens. The method for making the microlens is adaptable to produce a cylindrical lens that has almost any shape on its optical surfaces. The cylindrical l... | 01/14/1992 |
| 4893892 | Method and apparatus for connecting multiple fiber optic conductors There is disclosed a method and apparatus for fixing a predetermined spacial orientation of exposed end portions of plurality of optical fibers included within a conductor unit; extending such exposed end portions between two terminal blocks for maintaini... | 01/16/1990 |
| 4886537 | Method of making wide angle and graded acuity intensifier tubes New fiber optic elements and a new microchannel plate forming method for ximity focussed image intensifier tubes and a method for making them are provided. Higher resolution is provided at the center of the field of view by the use of graded fiber and ch... | 12/12/1989 |
| 4877303 | Fiber optic connector element & method for its use An optical fiber connector element comprises: a connector body having a passage extending therethrough, the passage having a forward portion for receiving an optical fiber and a rearward portion which is wider than the forward portion for receiving an opt... | 10/31/1989 |
