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| Number | Title | Issue Date |
| 7420147 | Microchannel plate and method of manufacturing microchannel plate A method of fabricating a multichannel plate is provided. The method includes providing a N layers, each layer having an array of wells formed therein. The N layers are aligned and stacked. The stack of N layers are sliced along a first and second line of the array ... | 09/02/2008 |
| 7342947 | Dark fiber laser array coupler A multiple-fiber, stretched, fused and cleaved coupler designed to act as an output window to a fiber laser array or fiber-coupled laser array, in which the stretch, length and/or position of the fibers is chosen facilitate the in-phase oscillation of the lasers in ... | 03/11/2008 |
| 7272956 | Method for manufacturing a multimode fiber pump power combiner A multimode to low-mode optical fiber is constructed by forming a plurality of multimode optical fibers into a fiber bundle. The bundle is then selectively heated and drawn to form a bi-tapered fiber bundle having a central straight portion in which the multimode fi... | 09/25/2007 |
| 7274717 | Dark fiber laser array coupler A multiple-fiber, stretched, fused and cleaved coupler designed to act as an output window to a fiber laser array or fiber-coupled laser array, in which the stretch, length and/or position of the fibers is chosen facilitate the in-phase oscillation of the lasers in ... | 09/25/2007 |
| 7221837 | Device and method for reducing glass flow during the manufacture of microchannel plates The present invention provides a glass packing tube for use in fabricating a microchannel plate. The glass tube has a plurality of flat inner surfaces and is used to form a boule including a plurality of optical fibers located in the tube and a plurality of support ... | 05/22/2007 |
| 7123802 | Method and device for arranging optical fibers A piping unit and method for efficiently arranging a plurality of optical fibers in a communication system. The piping unit includes an elongate tube having a plurality of parallel longitudinal cavities extending the length of the tube. The longitudinal cavities hav... | 10/17/2006 |
| 7014318 | Light coupling device and image projection apparatus using the same A light coupling device and an image projection apparatus using the same, wherein photoconductive media of the light coupling device include optical fibers that transmit light. Each light coupling device has at least two input terminals, at least two output terminal... | 03/21/2006 |
| 6996315 | Process for producing a leached fiber bundle, and improved leached fiber bundle A leached fiber bundle with the light outlet points positioned as accurately as possible is provided, in which the end faces are not completely fused together, but rather are only fused together at their contact surfaces. The interstices formed are permanently fille... | 02/07/2006 |
| 6959131 | Achromatic fiber-optic power splitter and related methods An achromatic power splitter is formed from multiple optical fibers. The achromatic power splitter operates single mode, which permits the power splitter to operate substantially insensitive to changes in wavelength of the input light, to changes in the polarization... | 10/25/2005 |
| 6711918 | Method of bundling rods so as to form an optical fiber preform The present invention provides a simple method for fabricating fiber-optic glass preforms having complex refractive index configurations and/or dopant distributions in a radial direction with a high degree of accuracy and precision. The method teaches bundling toget... | 03/30/2004 |
| 6676307 | Method and system for controlling splice attenuation A method of controlling an optical fiber splicing machine utilizes a power control mode to control the amount of power delivered to fuse the fibers. In the power control mode, the attenuation is measured while the fusing process is occurring. A rate of at... | 01/13/2004 |
| 6665473 | Compact fiber coupler and method of manufacturing the same A method of manufacturing a compact fiber coupler. On a semiconductor substrate, a V-groove with a radius curvature R is formed. Then, a glue is positioned at both sides of the V-groove, and the glue is absorbed from both sides of the V-groove by capillar... | 12/16/2003 |
| 6543256 | Optical fiber coupler making apparatus made from zirconia and method In an optical fiber coupler making apparatus which makes an optical fiber coupler by thermally fusing a plurality of optical fibers together by use of a heater and then elongating thus thermally fused part, the heater comprises a heating element which is ... | 04/08/2003 |
| 6397636 | Method of applying a precursor to an assembled fiber bundle and fusing the bundle together Optical fiber bundles having high optical throughput can be produced with relatively high yield if gaps between fibers are eliminated by application of a particle-containing glass precursor material, exemplarily fumed silica in an aqueous medium. Manufact... | 06/04/2002 |
| 6349572 | Method of compression bundling of optical fiber The method of making an optical fiber bundle (1) from individual optical fibers with good optical properties and a wider applicability includes temporarily mechanically holding individual optical fibers together and pushing them in a snug fit in a single ... | 02/26/2002 |
| 6089044 | Process for making preforms for multicore optical fibers Process for making preforms for multicore optical fibers. According to this process, several elementary preforms are made, a first machining is performed on them such that a chosen geometric model will be obtained after they are assembled, a second machin... | 07/18/2000 |
| 5938812 | Method for constructing a coherent imaging bundle A method for constructing a glass fiber imaging bundle includes drawing a continuous glass fiber from a dispenser. The dispenser is mounted for movement parallel to a drum having first, second, and third areas around the drum's circumference. The fiber is... | 08/17/1999 |
| 5935288 | Method for producing fused fiber bundles A method for making a fused fiber bundle by providing a bundle of optical fibers, heating the fibers by a flame extending axially along the bundle, and translating the flame axially along the fibers. Tension may be applied to the heated bundle to reduce t... | 08/10/1999 |
| 5891210 | Method of connecting optical fibers The present invention provides a connecting member for facilitating connecting of optical fibers, and a connecting method in which the loss due to connecting is small. An optical fiber connecting member is composed of: a retaining portion having through-h... | 04/06/1999 |
| 5879425 | Method for fabrication of microchannel multiplier plates A rod of etchable core glass material is inserted within a lead glass sleeve and heated in a furnace to drawing temperature and drawn from the furnace into a fiber. The lower end of the glass sleeve is collapsed around the core glass, thereby sealing the ... | 03/09/1999 |
| 5809189 | Controlled dopant diffusion for fiber optic coupler Uniformity of optical coupling of optical elements such as couplers and splitters is improved by heat treatment which causes dopants in the core of an optical fiber to diffuse into material from the cladding layer of the optical fibers from which the opti... | 09/15/1998 |
| 5764830 | 1×N and N×N fiber optic couplers The present invention provides fiber optic couplers for use with at least three optic fibers. The optic fibers arranged in a linear array, that is, the optic fibers are coupled side by side. The fibers along either end of the linear-array are coupled only... | 06/09/1998 |
| 5553179 | Varied insertion loss fiber optic coupling and method of making same A varied ratio coupler, and a method of forming the same, constructed and arranged, in a unitary structure, to cause optical power in an input optical fiber to couple asymmetrically to at least two output optical fibers in a manner establishing different ... | 09/03/1996 |
| 5522003 | Glass preform with deep radial gradient layer and method of manufacturing same A glass preform structure, preferably of an optical glass, constructed with a central core of a first material, a surrounding tube of a second material, and a deeply placed bonded layer integrally formed between the core and tube preferably by a heat driv... | 05/28/1996 |
| 5472471 | Process for the production of an optical fiber bundle for heat resistance and vacuum resistance by bonding fiber ends with a bonding glass An optical fiber bundle for heat resistance and vacuum resistance which can be used even at a very high temperature or high vacuum is provided in economical manner. This is accomplished by a process for the production of an optical fiber bundle for heat r... | 12/05/1995 |
| 5448673 | Controlled dopant diffusion for fiber optic coupler Uniformity of optical coupling of optical elements such as star couplers and splitters is improved by heat treatment which causes dopants in the core of an optical fiber to diffuse into material from the cladding layer of the optical fibers from which the... | 09/05/1995 |
| 5430821 | Protective structure for an optical fiber coupler and method for protecting the same The present relates to the protective structure for an optical fiber coupler made from bare fiber parts of a plurality of optical fibers therein, the bare fiber parts being formed by removing the coating of the plurality of optical fibers and comprises a ... | 07/04/1995 |
| 5372625 | Method of manufacturing a multiferrule for optical fibers The method of manufacturing a multiferrule for optical fibers, the method consisting in fiber drawing a preform of silica that includes a plurality of mutually parallel channels, the method being characterized by the fact that said preform is made from a ... | 12/13/1994 |
| 5373578 | Strippable coating for optical fiber A coating system for individual glass fibers of a lightwave communications system has improved strippability, particularly in situations where a group of such fibers are arrayed together in what is known as a ribbon. A preferred embodiment includes two la... | 12/13/1994 |
| 5360464 | Method for splicing and reinforcing carbon coated optical fibers The present invention relates to a method for the fusion splicing of carbon coated optical fibers and to a method for providing reinforced performance of the spliced points. Concretely, carbon coated optical fibers are fusion spliced in an atmosphere cont... | 11/01/1994 |
| 5340371 | Optical fiber splicing chuck A fiber holding chuck comprising a silica glass rod having a fiber groove or fiber chuck for an optical fiber. The optical fiber lies in the fiber groove, and a clamping mechanism holds the optical fiber in place. The fiber holding chuck positions the opt... | 08/23/1994 |
| 5268014 | Method of making robust fiber optic coupler After a plurality of optical fibers are fused to make a fiber optic coupler, the ends thereof are glued to a substrate to provide the outwardly extending fibers with adequate pull strength. The glue can flow from the point of application toward the fused ... | 12/07/1993 |
| 5216741 | Method of positioning and fixing optical fibres in a row of optical fibres and a coupling device provided with such a row of fibres A planar row of optical fibres (9) is obtained by placing the fibres in a mutually parallel position situated contiguously alongside one another. For this purpose, the fibres (9) are placed alongside one another on a substrate (1) in a groove (6) having a... | 06/01/1993 |
| 5173097 | Process for the manufacture of objects with small complex cross-sections A need often arises for micro-optical components, such as optical fibres and couplers, and micromechanical components with complex cross-sections which are different at opposite ends or, for directional couplers, at points along the length of the couplers... | 12/22/1992 |
| 5149349 | Method of making polarization retaining fiber with an elliptical core, with collapsed apertures Disclosed is a method of making a polarization retaining single-mode optical fiber. There is initially formed a draw blank having diametrically opposed longitudinal apertures in the cladding glass parallel to the core glass region. The draw blank is drawn... | 09/22/1992 |
| 5139550 | Method of making fluoride glass optical coupler A fused coupler is formed from two twisted optic fibers (2, 3) of fluoride glass by heating them in the slot (18) of a temperature-controlled heater (15) in a shroud (14) containing an oxygen-free atmosphere. The glass of the fibers may be ZBLAN glass in ... | 08/18/1992 |
| 5104434 | Method of making fiber optic couplers A fiber optic coupler is formed by providing a glass tube having a longitudinal aperture extending therethrough. Protective coating is removed from a region of a first optical fiber intermediate the ends thereof. Protective coating is removed from an end ... | 04/14/1992 |
| 5098459 | Method of manufacturing optical branching and coupling device A method of fabricating an optical branching and coupling device includes the steps of preparing at least a pair of coated optical fibers; partly stripping the coating of the optical fibers; and fixedly inserting the coating stripped portions of the optic... | 03/24/1992 |
| 5045100 | Method of forming a fibre optic terminal assembly A method of forming a fibre optic terminal assembly (17) comprising the steps of inserting fibres (8) into a duct (3) defined by a housing (1) comprising a sleeve portion (21) having an open end (10) and defining a tubular portion of the duct, the fibres ... | 09/03/1991 |
| 5030265 | Optical fiber coupler manufacturing device A optical fiber coupler manufacturing device is disclosed for the manufacture of fused-elongated type optical fiber couplers. The disclosed invention provides an optical fiber coupler manufacturing device having a chassis, a pair of movable stands provide... | 07/09/1991 |
