Optical Fiber, Rod, Filament, Or Waveguide Patents (Class 427/163.2)
  • Publication number: 20130279850
    Abstract: The dielectric, three-dimensional photonic materials disclosed herein feature Dirac-like dispersion in quasi-two-dimensional systems. Embodiments include a face-centered cubic (fcc) structure formed by alternating layers of dielectric rods and dielectric slabs patterned with holes on respective triangular lattices. This fcc structure also includes a defect layer, which may comprise either dielectric rods or a dielectric slab with patterned with holes. This defect layer introduces Dirac cone dispersion into the fcc structure's photonic band structure. Examples of these fcc structures enable enhancement of the spontaneous emission coupling efficiency (the ?-factor) over large areas, contrary to the conventional wisdom that the ?-factor degrades as the system's size increases. These results enable large-area, low-threshold lasers; single-photon sources; quantum information processing devices; and energy harvesting systems.
    Type: Application
    Filed: February 19, 2013
    Publication date: October 24, 2013
    Inventors: Jorge Bravo-Abad, John D. Joannopoulos, Marin Soljacic
  • Publication number: 20130272661
    Abstract: A fiber optic cable assembly includes a fiber optic cable and a connector assembly. The fiber optic cable includes an optical fiber, having a core surrounded by a cladding, and a jacket, which surrounds the optical fiber. The jacket includes a plurality of reinforcement members integrated into a matrix material of the jacket. The connector assembly includes a rear housing having a connector end that is directly engaged with an end portion of the jacket. A fiber optic cable includes an optical fiber with a core surrounded by a cladding. The fiber optic cable also includes a jacket that surrounds the optical fiber. The jacket includes about 40% to about 70% by weight of a plurality of reinforcement members integrated into a matrix material of the jacket.
    Type: Application
    Filed: March 4, 2013
    Publication date: October 17, 2013
    Inventor: ADC TELECOMMUNICATIONS, INC.
  • Publication number: 20130273240
    Abstract: Embodiments of the present invention generally relate to laser combiners, and more specifically, to all-fiber devices that combine optical laser power from multiple separate sources such as lasers or amplifiers. In one embodiment, a method of manufacturing a combiner device comprises: positioning an plurality of fibers into a bundle of fibers; drawing the bundle of fibers to create a tapered section, the tapered section having a first outer diameter at an input end, a second outer diameter at an output end, and a taper ratio of at least three; wherein at least one of the fibers of the bundle of fibers comprises an optical waveguide configured for propagating an optical mode from the input end to the output end, and wherein a mode field diameter of the optical mode at the input end is substantially the same as the mode field diameter at the output end.
    Type: Application
    Filed: June 7, 2013
    Publication date: October 17, 2013
    Inventors: William R. Holland, Thierry F. Taunay
  • Publication number: 20130273369
    Abstract: Strength members for cable, particularly fiber optic cable, are made by a method comprising the steps of: A. Wetting a fiber, e.g., fiberglass fiber, with an aqueous polymeric dispersion to form a wetted fiber, the dispersion comprising: 1. At least one thermoplastic resin, e.g., a polyolefin; 2. At least one dispersing agent, e.g., a ethylene ethyl acrylate polymer; and 3. Water; B. Removing the water from the wetted fiber, and C. Consolidating the resin on the fiber with or without curing.
    Type: Application
    Filed: November 9, 2011
    Publication date: October 17, 2013
    Inventors: Huajun Zhou, Buo Chen, Anthony C. Neubauer, Jeffrey M. Cogen
  • Publication number: 20130265564
    Abstract: The invention relates to an optical strain gauge (1) using a glass fibre as a strain sensor. The strain gauge comprises a glass fibre comprising a sheath. The sheath has the following composition: a mixture of polyether ether ketone and an admixture of at least 10 weight percent and a maximum of 40 weight percent of an inorganic filler, with a particle size of between 0.08 ?m and 12 ?m. The outer diameter of the sheath is between 0.2 mm and 1.2 mm. The ratio D/d between the outer diameter D of the sheath and the diameter d of the glass fibre is between 2 and 6. A pressure of the sheath on the glass fibre is such that essentially no relative movement can occur between the glass fibre and the sheath.
    Type: Application
    Filed: May 28, 2013
    Publication date: October 10, 2013
    Inventors: Bernd Günther, Hagen Ruppin, Karl-Heinz Haase, Tobias Kipp, Manfred Kreuzer, Jochen Maul, Rudolf Schulz
  • Patent number: 8541050
    Abstract: An object is to manufacture an optical waveguide having low optical loss, by smoothing the surface of a core. To this end, a method for manufacturing an optical waveguide includes: a core-forming layer formation step of forming a core-forming layer of a photosensitive polymer on a surface of a lower cladding layer formed on a substrate; a smoothing step of smoothing the surface by lowering a surface viscosity thereof through a heat treatment of the core-forming layer; and a photocuring step of forming a core through selective exposure of the smoothed core-forming layer.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: September 24, 2013
    Assignee: Panasonic Corporation
    Inventors: Tohru Nakashiba, Shinji Hashimoto, Naoyuki Kondou
  • Patent number: 8541064
    Abstract: A method for producing a coated optical fiber may include drawing an optical fiber from a draw furnace along a first vertical pathway. The optical fiber may then be routed through at least one fluid bearing thereby redirecting the optical fiber along a second vertical pathway. Thereafter, a thermoplastic coating may be applied to the optical fiber with a thermoplastic coating system. The optical fiber may then be wound onto a fiber storage spool with a fiber take-up system. The fiber take-up system may be space apart from the thermoplastic coating system such that the thermoplastic coating may be cooled before the optical fiber is wound onto the fiber storage spool.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: September 24, 2013
    Assignee: Corning Incorporated
    Inventors: James Henry Faler, Bruce Warren Reding, Bradley Kent Shepard, David Andrew Tucker
  • Publication number: 20130243949
    Abstract: Described is a modular method of making an optical fiber comprising a core and a cladding configured to support and guide a fundamental transverse mode, the cladding including (i) an outer cladding having an index nout less than the index n1 of the core, (ii) an inner cladding having an index n2<nout, (iii) a pedestal having an index n4?nout, (iv) an inner trench disposed between the inner cladding and the pedestal, the inner trench having an index n3<<n4, and (iv) an outer trench disposed between the pedestal and the outer cladding, the outer trench having an index n5<n4 and relatively close to nout. To suppress unwanted HOMs the pedestal is configured to resonantly couple at least one unwanted transverse mode of the core (other than the fundamental mode) to at least one transverse mode of the pedestal.
    Type: Application
    Filed: May 14, 2013
    Publication date: September 19, 2013
    Applicant: OFS FITEL, LLC
    Inventors: John Michael Fini, Robert Lee Lingle, JR., Yi Sun
  • Patent number: 8529993
    Abstract: This invention relates to materials and processes for the preparation of high quality layers, for example for the fabrication of optical devices such as waveguides. In particular, the invention relates to the use of low volatility polymer materials for the deposition of high quality layers on large area substrates via a two-stage process, for example extrude-and-spin.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: September 10, 2013
    Assignee: Zetta Research andDevelopment LLC—RPO Series
    Inventors: Robert Bruce Charters, Dax Kukulj
  • Publication number: 20130230650
    Abstract: A method for manufacturing an optical printed circuit board (OPCB) includes: providing a substrate having a loading surface; forming a first cladding solvent layer on the loading surface by a spin coating method; solidifying the first cladding solvent layer to form a first cladding layer; forming a core solvent layer on the first cladding layer through the spin coating method; solidifying the core solvent layer to form a core layer; forming optical waveguide patterns on the core layer by a roller pressing method; forming a second cladding solvent layer on the core layer through the spin coating method; and solidifying the second cladding solvent layer to form the second cladding layer.
    Type: Application
    Filed: August 13, 2012
    Publication date: September 5, 2013
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: BING-HENG LEE
  • Publication number: 20130230276
    Abstract: An optical printed circuit board (OPCB) includes a flexible first substrate, a first cladding layer, a core layer, a second cladding layer, and a flexible second substrate. The first cladding layer is formed on the substrate. The core layer is formed on the first cladding layer. The second layer is formed on the core layer. The second substrate is positioned on the second cladding layer. The core layer defines optical waveguide patterns. The refractive rate of the core layer is greater than the refractive rate of the first cladding layer and the refractive rate of the second cladding layer.
    Type: Application
    Filed: August 13, 2012
    Publication date: September 5, 2013
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: BING-HENG LEE
  • Publication number: 20130230287
    Abstract: Cables are constructed with embedded discontinuities in the cable jacket that allow the jacket to be torn to provide access to the cable core. The discontinuities can be longitudinally extending strips of polymer material coextruded in the cable jacket.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 5, 2013
    Inventors: George Cornelius Abernathy, David Wesley Chiasson, Randall Dwaine Tuttle
  • Publication number: 20130209045
    Abstract: A fiber optic cable includes a first optical fiber, a jacket, and a second optical fiber. The first optical fiber includes a glass core and cladding. The glass core is configured to provide controlled transmission of light through the fiber optic cable for high-speed data communication. The jacket has an interior surface that defines a conduit through which the first optical fiber extends. The jacket further has an exterior surface that defines the outside of the fiber optic cable. The second optical fiber is integrated with the exterior surface of the jacket.
    Type: Application
    Filed: March 27, 2012
    Publication date: August 15, 2013
    Inventors: David L. Dean, JR., William C. Hurley
  • Publication number: 20130196843
    Abstract: This specification relates to a colorless composite material capable of retaining transparency within a wide temperature range by impregnating glass composition (glass fibers) with inorganic-organic hybrid resin. A colorless composite material according to exemplary embodiments includes glass fibers, and inorganic-organic hybrid resin consisting of inorganic bonds and organic bonds, wherein the inorganic bonds are Si—O—Si bonds or Si—O-M bonds and M denotes a metallic element.
    Type: Application
    Filed: December 22, 2011
    Publication date: August 1, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Deokhai Park, Eunseck Kang, Kyungho Jung, Namseok Kang
  • Publication number: 20130188918
    Abstract: A SOI optical structure is provided, including a succession of a substrate, insulator layer, patterned silicon layer and first and second cladding layer. In one embodiment the substrate is made of silicon, the insulator layer and first cladding are made of silicon oxide, and the second cladding layer is made of silicon nitride. The double cladding configuration provides both light confinement within the waveguides defined by the patterned silicon layer and optical isolation, for example from metal absorption when the optical structure is metallized. The double cladding configuration may also help reducing stresses within the optical structure.
    Type: Application
    Filed: January 24, 2013
    Publication date: July 25, 2013
    Applicant: TERAXION, INC.
    Inventor: TERAXION, INC.
  • Publication number: 20130188908
    Abstract: An optical transmission body includes a substrate having a through hole penetrating therethrough in a thickness direction thereof; a cladding member at least a part of which is positioned to be filled in the through hole, and which has an optical waveguide hole which is positioned inside the through hole and penetrates through the cladding member in a thickness direction thereof and a guide hole portion which is positioned away from the optical waveguide hole and is concave in the thickness direction; and a core member disposed inside the optical waveguide hole.
    Type: Application
    Filed: August 31, 2011
    Publication date: July 25, 2013
    Applicant: KYOCERA CORPORATION
    Inventors: Maraki Maetani, Yuji Masuda
  • Patent number: 8491823
    Abstract: To obtain a water-resistant polarizing film free from deterioration in dichroic ratio caused by water-resistant treatment, it is critical that adjacent sulfonic acid groups or sulfonate groups in the organic dyes to be used for the polarizing film are spaced at moderate intervals.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: July 23, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Junzo Miyazaki, Shoichi Matsuda, Kyoko Nishiguchi
  • Publication number: 20130183440
    Abstract: The optical waveguide-type wavelength dispersion compensation device of the present invention has an optical waveguide as a reflection-type wavelength dispersion compensation device. The equivalent refractive index of a core changes unevenly along a light propagation direction by changing physical dimensions of the core that is embedded in. a cladding.
    Type: Application
    Filed: December 21, 2012
    Publication date: July 18, 2013
    Applicant: FUJIKURA LTD.
    Inventor: FUJIKURA LTD.
  • Publication number: 20130177277
    Abstract: An object is to provide an optical waveguide that has low optical coupling loss when optically coupled with an optical element and that is capable of performing high-quality optical communication, a method for efficiently producing the optical waveguide, an optical waveguide module that is provided with the optical waveguide and is capable of performing high-quality optical communication, a method for efficiently producing the optical waveguide module, and an electronic apparatus.
    Type: Application
    Filed: September 27, 2011
    Publication date: July 11, 2013
    Applicant: SUMITOMO BAKELITE CO. LTD.
    Inventors: Makoto Fujiwara, Tsuyoshi Furukawa, Shinsuke Terada, Motoya Kaneta
  • Patent number: 8483529
    Abstract: Systems, devices, and techniques are disclosed relating to dispersion devices that include a slot waveguide coupled with another waveguide such as a strip waveguide. For example, one or more structural parameters can be obtained for a dispersion device, including a slot waveguide coupled to a strip waveguide, to cause the dispersion device to produce dispersion, having a dispersion profile, for an electromagnetic wave propagated through the dispersion device, the one or more structural parameters including one or more of a slot thickness for a slot of the slot waveguide or a spacing thickness between the slot waveguide and the other waveguide; and making the dispersion device, including the slot waveguide and the other waveguide, according to the structural parameters.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: July 9, 2013
    Assignee: University of Southern California
    Inventors: Lin Zhang, Yang Yue, Alan E. Willner
  • Publication number: 20130170802
    Abstract: The invention provides an optical waveguide and a method of making an optical waveguide. The waveguide has a curved section having an asymmetric refractive index profile, in which the refractive index varies asymmetrically across the waveguide cross-section in dependence on the radius of the curved section of the waveguide.
    Type: Application
    Filed: January 3, 2012
    Publication date: July 4, 2013
    Applicant: Xyratex Technology Limited
    Inventor: Richard C.A. PITWON
  • Publication number: 20130163928
    Abstract: A polymer waveguide for coupling with one or more light transmissible devices, a method of fabricating a polymer waveguide for coupling with one or more light transmissible devices, and a method of coupling a polymer waveguide with one or more light transmissible devices. The polymeric waveguide comprises a grating structure.
    Type: Application
    Filed: August 4, 2011
    Publication date: June 27, 2013
    Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Xizu Wang, Hoi Lam Tam, Zhikuan Chen, Furong Zhu
  • Publication number: 20130163920
    Abstract: An optical transmission board includes a substrate being provided with a through hole formed in a thickness direction of the substrate so as to penetrate from top to bottom of the substrate; a cladding member at least part of which locates inside the through hole, having an optical waveguide hole being inside the through hole and penetrating the cladding member in the thickness direction thereof, and having an upper surface having a surface roughness smaller than that of an upper surface of the substrate; a core member disposed inside the optical waveguide hole; an electrically conductive body disposed on the upper surface of the cladding member; and an optical element electrically connected to the electrically conductive body, having a light-receiving surface or a light-emitting surface opposed to an upper surface of the core member.
    Type: Application
    Filed: August 31, 2011
    Publication date: June 27, 2013
    Applicant: KYOCERA CORPORATION
    Inventor: Maraki Maetani
  • Patent number: 8465194
    Abstract: The present invention relates to a backlight module, light guide plate thereof and ink thereof. The ink includes a base resin and an additive. The additive is dispersed in the base resin for increasing the printability of the ink. The additive comprises a polymer having hydroxy functional group, ester functional group, ether functional group or combination thereof. Use of the ink of the present invention will reduce the color difference and the variation of color temperature of the light guide plate. In addition, the ink has higher flowability, which increases the printability of the ink.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: June 18, 2013
    Assignee: Chi Lin Optoelectronics Co., Ltd.
    Inventors: Hsi-Hsin Shih, Hung-Wen Wang, Chin-Ming Wang, Chien-Tsung Wu, Shao-Ming Lee
  • Publication number: 20130148922
    Abstract: An optical module manufacturing method includes: forming a first waveguide layer and a second waveguide layer on a first substrate and a second substrate respectively, or forming a first waveguide layer and a second waveguide layer on a first surface of a first substrate and a second surface of the first substrate respectively; disposing the first substrate on the second substrate; disposing a filter at an end of the first waveguide layer and the second waveguide layer, so that the filter is aligned with the second waveguide layer; and disposing a prism on the filter, so that a first reflective surface of the prism is aligned with the first waveguide layer, and a second reflective surface is aligned with the second waveguide layer. Embodiments of the present application further disclose an optical module.
    Type: Application
    Filed: February 4, 2013
    Publication date: June 13, 2013
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Huawei Technologies Co., Ltd.
  • Publication number: 20130148932
    Abstract: A casing mixture for a cable is provided having chloroprene with fillers and additives, particularly processing aids and softeners, as well as a cross-linking system, adhesion promoters, stabilizers, anti-aging agents, optionally coloring agents, which results after cross-linking in cold resistant and cold elastic vulcanizates which are suitable for extra heavy duty applications, for example, according to CSA Standard C22.2 No. 96-09 for moving lines for energy supply.
    Type: Application
    Filed: July 26, 2012
    Publication date: June 13, 2013
    Inventors: Christian Cornelissen, Armin Niehaus
  • Patent number: 8458923
    Abstract: A floor curing apparatus is disclosed, including an ultraviolet lamp, a replaceable reflector configured to direct light energy transmitted from the ultraviolet lamp, the replaceable reflector including one of a plurality of interchangeable reflectors, a shutter mechanism configured to selectively move a shutter to expose the ultraviolet lamp and the reflector toward a surface upon which the floor curing apparatus operates, and wheels. The ultraviolet lamp and the reflector height from the floor surface are maintained at a predetermined distance above the surface. The plurality of interchangeable reflectors provides varying transmission characteristics.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: June 11, 2013
    Assignee: Jelight Company, Inc.
    Inventors: Andrew J. Mackinnon, Dick Amen
  • Publication number: 20130136857
    Abstract: An optical fiber recoating apparatus employs a variable size applicator for depositing a coating material in liquid form onto a portion of varying diameter optical fiber. The coating material is applied to the variable size applicator which is in continuous contact about the circumference of the optical fiber. At a constant speed the variable size applicator moves along the length of the optical fiber while simultaneously changing size to conform to the varying diameter of the optical fiber for applying a uniform coating thereto.
    Type: Application
    Filed: March 14, 2012
    Publication date: May 30, 2013
    Applicant: Her Majesty the Queen in Right of Canada, as represented by the Minister of Industry
    Inventors: Chantal Blanchetiere, Sarkis Jacob, Xiaoli Dai, Huimin Ding
  • Patent number: 8445059
    Abstract: Adverse hydrogen aging limitations in multiply-doped optical fibers are overcome by passivating these optical fibers using a deuterium passivation process. This treatment essentially pre-reacts the glass with deuterium so that the most active glass sites are no longer available to react with hydrogen in service. Optical fibers of main interest are doped with mixtures of germanium and phosphorus. Optimum passivating process conditions are described.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: May 21, 2013
    Assignee: OFS Fitel, LLC
    Inventors: David J. DiGiovanni, Robert Lingle, Jr., Michael LuValle, George E. Oulundsen, Durgesh Shivram Vaidya
  • Publication number: 20130122194
    Abstract: A manufacturing method of one embodiment of the present invention comprises the step of ejecting liquid resin through a resin supply hose connected to a containing tank to a coating device, and causing the coating device to apply the liquid resin to an optical fiber to form a coating layer. Before the step of forming the coating layer, this manufacturing method comprises the steps of: causing the liquid resin to be ejected through the resin supply hose to a cup which is different from the coating device, to measure an ejection amount of the liquid resin; and determining whether the measured ejection amount of the liquid resin is within an acceptable range or not. Then, the step of forming the coating layer is performed when it is determined, as a result, that the measured ejection amount of the liquid resin is within the acceptable range.
    Type: Application
    Filed: January 7, 2013
    Publication date: May 16, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventor: Furukawa Electric Co., Ltd.
  • Publication number: 20130114936
    Abstract: Various embodiments include photonic bandgap fibers (PBGF). Some PBGF embodiments have a hollow core (HC) and may have a square lattice (SQL). In various embodiments, SQL PBGF can have a cladding region including 2-10 layers of air-holes. In various embodiments, an HC SQL PBGF can be configured to provide a relative wavelength transmission window ??/?c larger than about 0.35 and a minimum transmission loss in a range from about 70 dB/km to about 0.1 dB/km. In some embodiments, the HC SQL PBGF can be a polarization maintaining fiber. Methods of fabricating PBGF are also disclosed along with some examples of fabricated fibers. Various applications of PBGF are also described.
    Type: Application
    Filed: September 11, 2012
    Publication date: May 9, 2013
    Applicant: IMRA AMERICA, INC.
    Inventors: Liang Dong, Brian K. Thomas, Shigeru Suzuki, Libin Fu
  • Publication number: 20130114924
    Abstract: According to embodiments of the present invention, an optical arrangement is provided. The optical arrangement includes a support substrate; at least one optical fiber arranged on the support substrate; at least one waveguide arranged on the support substrate and adjacent to the at least one optical fiber; the at least one waveguide defining a light propagation direction; and at least one grin index lens arranged asymmetrically relative to the light propagation direction such that light is coupled from the at least one optical fiber through the at least one grin index lens to the at least one waveguide.
    Type: Application
    Filed: April 26, 2011
    Publication date: May 9, 2013
    Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Ter-Hoe Loh, Seng-Tiong Ho, Yingyan Huang
  • Publication number: 20130114129
    Abstract: A single-mode optical fiber for guiding an optical signal, wherein the core region is capable of guiding an optical signal in a fundamental core mode at an optical signal wavelength. A cladding region is arranged to surround the core region and includes an inner cladding region and an outer cladding region. The inner cladding region includes a background material and a plurality of inner cladding features arranged in the background material, wherein a plurality of the plurality of inner cladding features are of a first type of feature that includes an air hole surrounded by a high-index region comprising a high-index material that is larger than the refractive index of the inner cladding background material.
    Type: Application
    Filed: June 27, 2011
    Publication date: May 9, 2013
    Applicant: NKT PHOTONICS A/S
    Inventor: Thomas Tanggaard Alkeskjold
  • Publication number: 20130107576
    Abstract: A light-guide member includes a transparent light-guide body, a reflective layer and a shading layer. The light-guide body includes a light incident surface, a light-emitting surface and a peripheral surface connecting the light incident surface and the light-emitting surface. The peripheral surface includes at least one reflective surface for transmitting the light entering form the light incident surface out of the light-emitting surface. The reflective layer may be painted on the reflective surface. The shading layer may be painted on the reflective layer.
    Type: Application
    Filed: February 21, 2012
    Publication date: May 2, 2013
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventor: ZHI YE
  • Publication number: 20130100704
    Abstract: A method for making a light guide includes transferring ink onto a master tool having a three-dimensional feature pattern formed thereon and then transferring ink from the master tool to a transparent light guide. The method also includes curing the ink on the light guide. Alternatively, the ink may be printed onto a substrate (e.g., a film) and then laminated to the light guide.
    Type: Application
    Filed: June 1, 2012
    Publication date: April 25, 2013
    Applicant: UNIPIXEL DISPLAYS, INC.
    Inventors: Martin A. KYKTA, Robert PETCAVICH, Steven A. MILLER, Danliang JIN
  • Publication number: 20130100144
    Abstract: This disclosure provides systems, methods and apparatus for providing illumination by using light turning features in a light guide. In an aspect, an illumination system is provided with a light guide configured to support propagation of light along the length of the light guide. The light guide includes a light turning feature formed by an indentation in the light guide. A coating layer is disposed along surfaces of the indentation and the volume of the indentation over the coating is filled with a filler. The filler substantially fills the indentation to an upper surface of the light turning feature and is spaced apart from the light guide. The light guide is configured to provide total internal reflection of light at the upper surface of the light guide. Light from a light source can be injected into the light guide and then redirected by the turning features to illuminate a display.
    Type: Application
    Filed: October 20, 2011
    Publication date: April 25, 2013
    Applicant: QUALCOMM MEMS TECHNOLOGIES, INC.
    Inventors: Rashmi R. Rao, Teruo Sasagawa
  • Publication number: 20130094808
    Abstract: A method of producing a coated FBG optical fiber involves coating the optical fiber prior to writing the Bragg grating. A system for producing the coated FBG optical fibers includes a high temperature furnace from which to draw the fiber, a coating applicator that may be a carbon coating applicator, a cooling station, and a grating writing station.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 18, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Daniel S. Homa, Christopher H. Lambert, Ajit Balagopal, Robert M. Harman
  • Publication number: 20130094801
    Abstract: An optical splitter array can include a single branched waveguide core situated on a planar substrate and having an input optically connected to n outputs via n?1 splitters, where n is an integer of at least 2. The array can also include a single cladding layer overlying the single branched waveguide core from the input to the outputs, and a plurality of alignment channels aligned with the input and the outputs.
    Type: Application
    Filed: July 2, 2010
    Publication date: April 18, 2013
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventor: Terrel Morris
  • Patent number: 8419986
    Abstract: A light guiding device and in particular to a light guiding device that can be used for illumination, backlighting, signage or display purposes is described. The light guiding device comprises a transparent base substrate, upon a first surface of which are mounted light sources, and a guide substrate arranged so as to encapsulate the light sources upon the first surface. In this way the guide substrate provides a means for guiding light produced by the one or more light sources over the first surface. The incorporation of scattering structures along with appropriate choice of the refractive indices of the various layers provides a highly flexible light guiding device that is typically less than 1 mm thick. The described light guiding device provides particular application as a seven segment display.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: April 16, 2013
    Assignee: Design LED Products Limited
    Inventor: James Gourlay
  • Patent number: 8420161
    Abstract: A method for producing an anti-glare film includes applying a coating composition including at least a resin, a solvent, and fine particles to a substrate; drying the coating composition applied to the substrate so that a Benard cell structure is formed in the surface of the coating layer due to convection caused during volatilization of the solvent; and curing the resin contained in the coating composition having formed therein a Benard cell structure to form an anti-glare layer having fine irregularities with a moderate surface waviness. The anti-glare layer has a degree of white muddiness of 1.7 or less, as measured by quantitatively determining a diffuse reflection component of the diffused light incident upon the surface of the anti-glare layer.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: April 16, 2013
    Assignee: Sony Corporation
    Inventors: Hitoshi Watanabe, Yumi Haga, Tsutomu Nagahama, Shinichi Matsumura
  • Publication number: 20130089295
    Abstract: The present disclosure relates to a telecommunications cable having a layer constructed to resist post-extrusion shrinkage. The layer includes a plurality of discrete shrinkage-reduction members embedded within a base material. The shrinkage-reduction members can be made of a liquid crystal polymer. The disclosure also relates to a method for manufacturing telecommunications cables having layers adapted to resist post-extrusion shrinkage.
    Type: Application
    Filed: December 3, 2012
    Publication date: April 11, 2013
    Applicant: ADC Telecommunications, Inc.
    Inventor: ADC Telecommunications, Inc.
  • Publication number: 20130081447
    Abstract: Methods and apparatuses are provided that greatly expand the utility of conventional hollow waveguide-based sensors via either straight, substrate-integrated channels or via meandering (e.g., circuitous, curved or folded optical paths) waveguide sensor designs. Full- or hybrid-integration of the meandering hollow waveguide with light source, detector, and light-guiding optics facilitates compact yet high-performance gas/vapor and/or liquid sensors of the substrate-integrated hollow waveguide sensor.
    Type: Application
    Filed: September 29, 2012
    Publication date: April 4, 2013
    Inventors: Jerry Chance Carter, Michael P. Chrisp, Anastacia M. Manuel, Boris Mizaikoff, Andreas Wilk, Seong-Soo Kim
  • Patent number: 8406591
    Abstract: A low cost, high performance, low profile flexible reinforcement member that can be used for both optical and copper communications cable. The reinforcement members made according to the preferred process are more rigid than known reinforcement members, but are less rigid than glass pultruded rods. Communications cables utilizing these members are lightweight and exhibit an improved combination of strength and flexibility compared to traditional communications cables. Further, these communication cables may then be installed into underground ducts using more economical and faster installation techniques.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: March 26, 2013
    Assignee: Neptco JV, LLC
    Inventors: Thomas P. Hager, Richard N. Lehman, James R. Priest
  • Publication number: 20130071078
    Abstract: Dual coated optical fibers and methods for forming dual coated optical fibers are disclosed herein. The dual coated optical fibers include a glass fiber comprising a core region, a cladding region and a dual coating layer surrounding the glass fiber. The dual coating layer includes an inner coating and an outer coating. The inner coating surrounds the glass fiber and includes a first polyimide material. In one embodiment the first polyimide material also includes an adhesion promoter. The outer coating surrounds and is in direct contact with the inner coating and includes a second polyimide material having a decomposition threshold temperature greater than the first polyimide material. The second polyimide material may also have a modulus of elasticity greater than the first polyimide material and a moisture uptake lower than the first polyimide material.
    Type: Application
    Filed: February 17, 2011
    Publication date: March 21, 2013
    Applicant: CORNING INCORPORATED
    Inventors: Kevin Wallace Bennett, Joohyun Koh
  • Publication number: 20130064505
    Abstract: A method for constructing an area array waveguide power splitter includes preparing a reflective layer on a substrate and forming a core of an area array waveguide layer and alignment features for an optical fiber input and a plurality of optical fiber outputs atop the reflective layer, wherein the core of the area array waveguide layer and the alignment features are formed concurrently. The method also includes applying a reflective layer to the top and side surfaces of the core of the area array waveguide layer and exposing an input and exposing a plurality of outputs in the reflective layer.
    Type: Application
    Filed: May 28, 2010
    Publication date: March 14, 2013
    Inventors: Terrel Morris, Michael Renne Ty Tan, Wayne V. Sorin, Paul Kessler Rosenberg, Sagi Varghese Mathai
  • Publication number: 20130064352
    Abstract: An X-ray waveguide, for guiding X-rays having a wavelength of 1 pm or more and 100 nm or less, includes: a core and a cladding. The core has a periodic structure composed of a plurality of materials each having a different real part of refractive index in the direction perpendicular to the waveguiding direction. A planarizing layer is disposed between the core and the cladding. The critical angle for total reflection of the X-rays at the interface between the planarizing layer and the cladding is larger than the Bragg angle of the periodic structure of the core.
    Type: Application
    Filed: September 5, 2012
    Publication date: March 14, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Wataru Kubo, Kohei Okamoto, Atsushi Komoto, Hirokatsu Miyata, Takashi Noma, Shin Kitamura, Masahiko Takahashi
  • Publication number: 20130056442
    Abstract: The present invention relates to a method of manufacturing optical waveguide devices. The order of patterning/etch in the method is first a deeper etching then shallow etching. In some embodiments, the first etching forms a mesa and the second etching removes a portion of material that comprises the mesa. In addition, there can be a planarization step. The deeper trenches are desirably conducive to filling. The method may use a cross-lithography method to reduce alignment errors between multiple patterning/etching steps. The method may use an oxidation and stripping off process to smooth a surface of the waveguide and/or reduce an initial dimension of the waveguide.
    Type: Application
    Filed: April 29, 2011
    Publication date: March 7, 2013
    Inventors: Bing Li, Xiaogang Li, Zhehui Wang
  • Publication number: 20130051743
    Abstract: Cables are constructed with extruded discontinuities in the cable jacket that allow the jacket to be torn to provide access to the cable core. The discontinuities can be longitudinally extending strips of material in the cable jacket.
    Type: Application
    Filed: October 25, 2012
    Publication date: February 28, 2013
    Inventors: Michael John Gimblet, Julian Latelle Greenwood, III
  • Patent number: 8374474
    Abstract: A structure for optical fiber with single layer coating suitable for field termination process is provided, including a glass core, a cladding layer, and a permanent coating protective layer. The thickness of the permanent coating ranges preferably from about 4 um to 8 um, and remains on the optical fiber during the field termination process to provide protection to the optical fiber after the buffer layer is striped off. In addition, the optical fiber structure of the present invention still conforms to the specification of the standard optical fiber. The optical fiber of the structure according to the present invention can simplify the field termination process so that the quality efficiency of the deployment is improved.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: February 12, 2013
    Assignees: Prime Optical Fiber Corporation, OWLink Technology, Inc.
    Inventors: Kuei-Huang Chou, Shing-wu Paul Tzeng, Chih-Yu Wu, Sheng-Hsiang Hsu
  • Patent number: 8374473
    Abstract: Certain embodiments of the invention may include systems and methods for providing tight-buffered optical fiber having improved fiber access. According to an example embodiment of the invention, a method for making a tight buffer upcoated optical fiber having a predetermined buffer stripping force is provided. The method includes controlling residual acrylate unsaturation (RAU) and oxygen in at least an outer surface of un-buffered optical fiber to achieve a predetermined buffer stripping characteristic, applying a tight buffer composition comprising acrylate to the un-buffered optical fiber, and curing the tight buffer composition.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: February 12, 2013
    Assignee: OFS Fitel, LLC
    Inventors: Peter A. Weimann, Timothy Goddard, Heng Ly