Optical Fiber, Rod, Filament, Or Waveguide Patents (Class 427/163.2)
  • Publication number: 20130034326
    Abstract: A monolithic fiber has a double bottleneck-shaped core configured with opposite uniformly configured end regions, frustoconical transformer regions which run inwards from the respective end regions, and a central uniformly-dimensioned region which bridges the transformer regions. The core is configured as a multimode core or single-mode core and capable of guiding a single transverse mode between the end regions without splice losses.
    Type: Application
    Filed: August 24, 2012
    Publication date: February 7, 2013
    Inventors: Valentin P. Gapontsev, Valentin Fomin, Nikolai Platonov, Mikhall Vyatkin
  • Publication number: 20130034654
    Abstract: A method for the manufacture of an optical fiber preform for producing a low attenuation optical fiber with high yield, comprising preparing a core rod and adding a cladding region. At the step of preparing a core rod, the core rod is produced including a first core region with Cl density of less than 600 atm-ppm, a second core region with Cl density of less than 600 atm-ppm around the first core region, and a third core region with Cl density of 3000 atm-ppm or more around the second core region. An alkali metal is selectively added to the first core region among the first, second, and third core regions. A cladding region is formed around the core rod by heating at a temperature of 1200° C. or higher for 7 hours or less.
    Type: Application
    Filed: July 25, 2012
    Publication date: February 7, 2013
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Tetsuya Haruna, Masaaki Hirano, Yoshiaki Tamura
  • Publication number: 20130034322
    Abstract: The invention relates to an optical waveguide and a semifinished product for producing an optical waveguide having optimized diffraction properties, comprising a trench structure that has a radius-dependent graded refractive index curve and/or a concentric depressed refractive index profile within a core zone (2) and/or within a cladding zone (4). In one embodiment of the optical waveguide and semifinished product, the structure is formed from a succession of differently doped regions containing dopants that are introduced into a base matrix and lower and/or increase the refractive index.
    Type: Application
    Filed: October 26, 2011
    Publication date: February 7, 2013
    Applicant: J-PLASMA GMBH
    Inventors: Matthias Auth, Jürgen Rosenkranz, Jörg Kotzing, Wolfgang Hämmerle, Lothar Brehm
  • Patent number: 8369663
    Abstract: An optical waveguide for a touch panel which eliminates the need for alignment between the optical waveguide and a lens and which achieves the appropriate emission and reception of light beams, to provide a touch panel using the optical waveguide, and to provide a manufacturing method of the optical waveguide for a touch panel. A total distance (L) which is the sum of a distance from the center of curvature of the first lens portion 30 to the light reflecting surface 60 and a distance from the light reflecting surface 60 to the tip of the second lens portion 50, and the radius (R) of curvature of the second lens portion 50 satisfy the following condition (A): (L/3)?0.5<R<(L/3)+0.5??(A) where L in mm, and R in mm.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: February 5, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Noriyuki Juni, Yusuke Shimizu
  • Publication number: 20130029032
    Abstract: A deposition apparatus comprising one or more atomizers structurally integrated with a deposition head. The entire head may be replaceable, and prefilled with material. The deposition head may comprise multiple nozzles. Also an apparatus for three dimensional materials deposition comprising a tiltable deposition head attached to a non-tiltable atomizer. Also methods and apparatuses for depositing different materials either simultaneously or sequentially.
    Type: Application
    Filed: September 25, 2012
    Publication date: January 31, 2013
    Applicant: OPTOMEC, INC.
    Inventor: Optomec, Inc.
  • Publication number: 20130029038
    Abstract: A method of making a multimode optical fiber is disclosed. In one embodiment the method includes calculating a core radius that maximizes the bandwidth of the multimode optical fiber wherein the effect of draw tension is accounted for. The embodiments herein illustrate how core radius can be tuned so the time delay of the outermost guided mode group is reduced. The resultant core radius may be targeted for a value off-nominal from what would be expected for a particular commercial optical fiber type.
    Type: Application
    Filed: December 20, 2011
    Publication date: January 31, 2013
    Inventors: Scott Robertson Bickham, Oleksandr Kogan, Ming-Jun Li, Snigdharaj Kumar Mishra, Pushkar Tandon
  • Publication number: 20130011108
    Abstract: Certain embodiments of the invention may include a UV curable acrylate buffer coating for optical fiber. According to an example embodiment of the invention, a buffered optical fiber is provided. The buffered optical fiber includes a core, a cladding surrounding the core, a primary layer surrounding the cladding, a secondary layer surrounding the primary layer. A clear or translucent buffer surrounds the optical fiber, wherein the buffer includes polyester/polyether polyol aliphatic urethane acrylate, and the buffer has an elastic modulus greater than 40,000 psi.
    Type: Application
    Filed: July 6, 2011
    Publication date: January 10, 2013
    Applicant: OFS FITEL, LLC
    Inventors: Peter A. Weimann, Timothy Goddard, Heng Ly
  • Publication number: 20130004137
    Abstract: A low index of refraction hybrid optical cladding may be formed from a fluorinated sol-gel. An electro-optic device may include a poled organic chromophore-loaded modulation layer (electro-optic polymer) and at least one adjacent fluorinated hybrid sol-gel cladding layer.
    Type: Application
    Filed: March 28, 2012
    Publication date: January 3, 2013
    Applicant: Gigoptix, Inc.
    Inventors: Danliang Jin, Guomin Yu, Hui Chen, Baoquan Chen
  • Publication number: 20120327364
    Abstract: A heat-curable composition comprises from 25 to 65% by weight of a mixture of epoxy-functional monomers, said mixture consisting of at least one polyfunctional epoxy monomer selected from monomers comprising from 4 to 8 glycidyl groups and/or cycloaliphatic epoxy groups, and at least one bi- or tri-functional epoxy monomer selected from monomers comprising two or three glycidyl groups and/or cycloaliphatic epoxy groups, from 25 to 70% by weight of at least one organic solvent selected from glycol monoethers, from 2.5 to 5% by weight, relative to the total weight of epoxyfunctional monomers (a) and (b), of at least one blocked strong acid catalyst, said heat-curable composition not containing any non-epoxyfunctional monomers, in particular not containing any acrylic, methacrylic or silane monomers.
    Type: Application
    Filed: December 17, 2009
    Publication date: December 27, 2012
    Applicant: Essilor International (compagnie Generale D'optique)
    Inventor: Robert Valeri
  • Publication number: 20120328254
    Abstract: An optical fiber including an optical fiber wire is provided. The optical fiber wire has a bare optical fiber portion, to which first elastic torsion is applied, and a coating layer, which coats the bare optical fiber portion and which is formed of curable resin and generates elastic repulsion against resilience occurring in the bare optical fiber portion so that the first elastic torsion applied to the bare optical fiber portion is held. Second elastic torsion is applied to the entire optical fiber configured to include the bare optical fiber portion and the coating layer.
    Type: Application
    Filed: May 25, 2012
    Publication date: December 27, 2012
    Applicant: FUJIKURA LTD.
    Inventor: Kenji OKADA
  • Publication number: 20120321264
    Abstract: A double clad optical fiber having a portion extending along its length along which an outer waveguide cladding and a protective jacket are absent and having faces of the second waveguide cladding at two lengthwisely opposite ends, wherein a water impervious sealant is applied to impede lengthwise diffusion of water through the faces of the second waveguide cladding
    Type: Application
    Filed: January 14, 2011
    Publication date: December 20, 2012
    Applicant: CORACTIVE HIGH-TECH INC.
    Inventor: Stéphane Chatigny
  • Publication number: 20120314990
    Abstract: There is provided an optical waveguide comprising an optical core having transverse sides, the optical core extending along a curved path; an optical cladding on the transverse sides of the optical core, wherein the distribution of the optical cladding on the transverse sides of the optical core is asymmetric about the centre of the core.
    Type: Application
    Filed: June 10, 2011
    Publication date: December 13, 2012
    Applicant: Xyratex Technology Limited
    Inventor: Richard C.A. PITWON
  • Publication number: 20120315386
    Abstract: The disclosure provides an ink jet ink for color filter and a method for preparing the same, as well as a method for preparing of a color filter. The ink jet ink for color filter comprising, by weight, 10 to 50 parts of aqueous nano pigment dispersion and 51 to 95 parts of a cold curing component.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 13, 2012
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shi SHU, Jianshe XUE, Jisheng ZHAO, Lin LI
  • Publication number: 20120315006
    Abstract: A single-mode optical fiber includes a central core surrounded by an outer optical cladding. The optical fiber includes an inner depressed cladding, a ring, and an outer depressed cladding positioned between the central core and the outer optical cladding. The central core typically has a refractive-index difference (Dn1) with the outer optical cladding of between about ?0.5×10?3 and 0.5×10?3. The ring typically has an inner radius (rring1) of between about 21 microns and 35 microns and a refractive-index difference with the outer optical cladding (Dnring) of between about ?0.5×10?3 and 0.5×10?3. The outer depressed cladding typically has a volume (Vout) of between about 15 ?m2 and 30 ?m2. The ratio of the volume of the central core over the width of the ring (Vcore/wring) is typically between about 0.12 micron and 0.2 micron.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 13, 2012
    Applicant: DRAKA COMTEQ, B.V.
    Inventors: Marianne Bigot-Astruc, Pierre Sillard
  • Patent number: 8323537
    Abstract: Provided is a method of manufacturing an all-in-one type light guide plate. The method includes: fabricating a master including a plurality of inverse-prism shape structures; forming an elastic mold by applying an elastomer on the master; and fabricating the all-in-one type light guide plate, on which a plurality of inverse-prism shape structures are integrally formed, by applying a light transmissive material on the elastic mold.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: December 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hong-seok Lee, Hwan-Young Choi, Jun-bo Yoon, Joo-hyung Lee
  • Publication number: 20120301093
    Abstract: A single-mode optical fiber includes a central core surrounded by an outer cladding. The optical fiber includes at least first and second depressed claddings positioned between the central core and the outer cladding. The central core typically has a radius of between about 3.5 microns and 5.5 microns and a refractive-index difference with the outer cladding of between about ?1×10?3 and 3×10?3. The first depressed cladding typically has an outer radius of between about 9 microns and 15 microns and a refractive-index difference with the outer cladding of between about ?5.5×10?3 and ?2.5×10?3. The second depressed cladding typically has an outer radius of between about 38 microns and 42 microns and a refractive-index difference with the first depressed cladding of between about ?0.5×10?3 and 0.5×10?3.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 29, 2012
    Applicant: Draka Comteq, B.V.
    Inventors: Pierre Sillard, Marianne Bigot-Astruc
  • Publication number: 20120287498
    Abstract: An optical source having a fiber emitting controlled single-transverse mode radiation at a wavelength of less than 1030 nm, includes at least one laser diode suitable for emitting a pumping wave; and a section of sheathed amplifying optical fiber having two ends, the amplifying optical fiber comprising a core and a pumping sheath, the fiber being doped with a rare earth dopant; a device for coupling the pumping source in the sheath of the doped fiber, characterized in that the core of the doped fiber includes a cylindrical portion doped with a rare earth element selected among ytterbium, neodymium, and thulium, in order to obtain a refractive index of the core that is higher than the refractive index of the sheath; the excitation wavelength of the laser diode is between 750 nm and 960 nm; the diameter of the sheath is greater than 50 microns, and the surface ratio of the doped core to the pumping sheath is between 8 and 50.
    Type: Application
    Filed: November 3, 2010
    Publication date: November 15, 2012
    Applicants: ALPHANOV CENTRE TECHNOLOGIQUE OPTIQUE ET LASERS, UNIVERSITE BORDEAUX 1
    Inventors: Nicholas Traynor, Johan Boullet, Eric Cormier, Ramatou Bello Doua
  • Publication number: 20120281954
    Abstract: The invention relates to a solid core optic fiber (1) as used in optical fiber technology to transfer optical signals, but also to transmit light for illuminating purposes. The solid core optic fiber (1) comprises a glass fiber (2) with a coating (3). The coating (3) comprises the following composition: a mixture of polyetheretherketone and an inorganic filler material in an admixture of at least 10 and a maximum of 40 wt. % having a particle size of 0.08 ?m to 12 ?m. The outer diameter of the coating (3) is 0.2 mm to 1.2 mm. The ratio D/d between the outer diameter D of the coating (3) and the diameter d of the glass fiber (2) is 2 to 6. A pressure of the coating (3) on the glass fiber (2) is such that essentially no relative motion can occur between the glass fiber (2) and the coating (3).
    Type: Application
    Filed: April 12, 2010
    Publication date: November 8, 2012
    Applicant: HOTTINGER BALWIN MESSTECHNIK GMBH
    Inventors: Manfred Kreuzer, Karl-Heinz Haase, Tobias Kipp, Jochen Maul, Hagen Ruppin, Rudolf Schulz, Bernd Günther
  • Publication number: 20120275180
    Abstract: Light diffusing optical fibers and methods for producing light diffusing optical fibers are disclosed. In one embodiment, a light diffusing optical fiber includes a core portion formed from silica glass and comprising a plurality of helical void randomly distributed in the core portion of the optical fiber and wrapped around the long axis of the optical fiber. A pitch of the helical voids may vary along the axial length of the light diffusing optical fiber in order to achieve the desired illumination along the length of the optical fiber. A cladding may surround the core portion. Light guided by the core portion is scattered by the helical voids radially outward, through the cladding, such that the light diffusing optical fiber emits light with a predetermined intensity over an axial length of the light diffusing optical fiber, the light diffusing optical fiber having a scattering induced attenuation loss greater than about 0.2 dB/m at a wavelength of 550 nm.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 1, 2012
    Inventors: Leslie James Button, Andrey Kobyakov, Sergey Anatolyevuch Kuchinsky, Stephan Lvovich Logunov, Aramais Zakharian
  • Publication number: 20120274923
    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 [mu]m and 12 [mu]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: April 22, 2010
    Publication date: November 1, 2012
    Applicant: Hottinger Baldwin Messtechnik GmbH
    Inventors: Manfred Kreuzer, Karl-Heinz Haase, Tobias Kipp, Jochen Maul, Hagen Ruppin, Rudolf Schulz, Bernd Günther
  • Publication number: 20120251770
    Abstract: To provide an optical device sealing structure capable of simply sealing an optical fiber inserting portion. Provided is a structure that seals an optical device including a metallic case having an optical element disposed therein and an optical fiber inserted through a through hole of the case, wherein a Zn-containing surface is formed on a surface of a bare fiber portion that is formed by partly removing a coating of the optical fiber so as to expose a bare fiber, and wherein an Sn-containing sealing material is charged between the Zn-containing surface and an inner wall of the through hole.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 4, 2012
    Inventors: Katsutoshi Kondou, Masaru Shiroishi, Kazuhiro Ooto
  • Publication number: 20120251046
    Abstract: The present invention provides an optical waveguide circuit which includes: a waveguide made of a material whose temperature coefficient of refractive index has a second-order component; a groove formed in a part of the waveguide; and a compensation material having a temperature coefficient of refractive index different from the temperature coefficient of refractive index of the waveguide, and in which a normal line of an interface between the groove and the waveguide, and an optical axis of light propagating through the waveguide intersect at a predetermined intersection angle, and the predetermined intersection angle is determined so as to reduce a second-order component of optical path length change of the waveguide due to the second-order component of temperature coefficient of the refractive index of the waveguide.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 4, 2012
    Applicant: Furukawa Electric Co., Ltd.
    Inventors: Hiroshi Kawashima, Kazutaka Nara
  • Patent number: 8277905
    Abstract: A process for producing a diffractive light guiding element by a continuous, single-stage reel-to-reel method, an apparatus suitable for carrying out the process and a light guiding element obtainable by the process.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: October 2, 2012
    Assignee: EPG (Engineered Nanoproducts Germany) AG
    Inventors: Martin Mennig, Peter Oliveira
  • Publication number: 20120243841
    Abstract: Micromodule subunit cables are constructed to allow for ease of identification between optical fibers in differing groups of optical fibers. In one cable, a first group of fibers is located within a first subunit while a second group of fibers is located within a second subunit, both subunits being enclosed in a cable jacket.
    Type: Application
    Filed: June 7, 2012
    Publication date: September 27, 2012
    Inventors: William C. Hurley, Samuel D. Navé
  • Patent number: 8273423
    Abstract: To provide: a color filter substrate with high display quality in which defective portions of a bank member (black matrix), such as a pin hole, a portion having an insufficient film thickness, a portion having an insufficient width, and a disconnection portion, or color mixing defects of a colored layer are corrected by the simple and inexpensive method; a liquid crystal display device including such a color filter; and production methods thereof. The color filter substrate of the present invention is a color filter substrate comprising a bank member and a colored layer on a substrate, wherein the color filter substrate has a structure in which a color mixing member formed of colored layer materials of two or more colors is formed in a defective portion of the bank member or along the bank member.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: September 25, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hirokazu Yoshioka, Keiichi Tanaka, Atsuhito Murai, Yasutoshi Murakami, Yoshitaka Okumoto, Satoru Kishimoto
  • Patent number: 8268394
    Abstract: A method of fabricating a metamaterial is provided, comprising providing a sample of engineered microstructured material that is transparent to electromagnetic radiation and comprises one or more voids, passing through the voids a high pressure fluid comprising a functional material carried in a carrier fluid, and causing the functional material to deposit or otherwise integrate into the engineered microstructured material to form the metamaterial. Many microstructured materials and functional materials can be used, together with various techniques for controlling the location of the integration of the functional material within the microstructured material, so that a wide range of different metamaterials can be produced.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: September 18, 2012
    Assignee: University of Southampton
    Inventors: Pier John Anthony Sazio, John Victor Badding, Dan William Hewak, Steven Melvyn Howdle
  • Publication number: 20120224810
    Abstract: An optical device comprising a planar waveguide located on a planar substrate, the planar waveguide including a light-transmissive layer and an optical grating coupler being located along the planar substrate and being adjacent to and optically coupled to the planar waveguide. The optical coupler includes an optical grating of the light-transmissive layer. The optical grating includes a periodic arrangement of light-refractive structures and one or more slotted openings separating the optical grating into two or more grating segments that have long axes that are substantially parallel to a propagation direction of a light beam configured to pass between the planar waveguide and the optical coupler. Pitch distances between adjacent ones of the grating segments are less than a wavelength of the light beam divided by the effective refractive index of the light-refractive layer.
    Type: Application
    Filed: March 5, 2011
    Publication date: September 6, 2012
    Applicant: Alcatel-Lucent USA Inc.
    Inventor: Christopher R. Doerr
  • Publication number: 20120219249
    Abstract: An optical printed circuit board, including at least one optical waveguide for carrying optical signals on the optical printed circuit board; and a trench formed adjacent the at least one optical waveguide, wherein the trench contains a light absorptive material to absorb light that strays from the at least one waveguide.
    Type: Application
    Filed: February 24, 2011
    Publication date: August 30, 2012
    Applicant: XYRATEX TECHNOLOGY LIMITED
    Inventor: Richard C.A. PITWON
  • Patent number: 8252387
    Abstract: An isothermal, low pressure-based process of depositing material within a substrate has been developed, and is particularly useful in forming an optical fiber preform results in creating an extremely narrow reaction zone within which a more uniform and efficient deposition will occur. Sets of isothermal plasma operating conditions have been found that create a narrow deposition zone, assuring that the deposited material is clear glass rather than soot particles. The exhaust end of the tube is connected to a vacuum system which is in turn connected to a scrubber apparatus for removal and neutralization of reaction by-products. The operating conditions are selected such that the hot plasma does not transfer a substantial amount of heat to the substrate tube, where the presence of such heat has been found to result in vaporizing the reactant material (creating soot) and developing hot spots.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: August 28, 2012
    Assignee: OFS Fitel, LLC
    Inventors: James W. Fleming, George J. Zydzik
  • Publication number: 20120213467
    Abstract: An optical device implemented on a substrate (such as silicon) is described. This optical device includes a wavelength-sensitive optical component with a high thermal resistance to a surrounding external environment and a low thermal resistance to a localized thermal-tuning mechanism (such as a heater), which modifies a temperature of the wavelength-sensitive optical component, thereby specifying an operating wavelength of the wavelength-sensitive optical component. In particular, the thermal resistance associated with a thermal dissipation path from the thermal-tuning mechanism to the external environment via the substrate is increased by removing a portion of the substrate to create a gap that is proximate to the thermal-tuning mechanism and the wavelength-sensitive optical component. Furthermore, the optical device includes a binder material mechanically coupled to the substrate and proximate to the gap, thereby maintaining a mechanical strength of the optical device.
    Type: Application
    Filed: February 22, 2011
    Publication date: August 23, 2012
    Applicant: ORACLE INTERNATIONAL CORPORATION
    Inventors: Hiren D. Thacker, Ivan Shubin, John E. Cunningham
  • Publication number: 20120212816
    Abstract: Provided are a substrate including a base with a pattern on at least one side thereof, in which a refractive index in a lower region of the pattern and a refractive index in an upper region of the pattern are different from each other according to a shape of the pattern; and a water repellent coating layer provided on at least one side with the pattern of the base, an optical product including the same, and a manufacturing method of the substrate. The substrate according to the present invention has both an excellent anti-reflective property and an excellent water repellent property.
    Type: Application
    Filed: October 28, 2010
    Publication date: August 23, 2012
    Inventors: Tae-Su Kim, Jae-Jin Kim, Bu-Gon Shin, Young-Jun Hong, Hyeon Choi
  • Publication number: 20120213669
    Abstract: An optical-waveguide sensor chip includes an optical waveguide having a first substance immobilized on the surface thereof, the first substance being specifically reactive with an analyte substance, and fine particles dispersed on the optical waveguide and having a second substance immobilized on the surface thereof, the second substance being specifically reactive with the analyte substance.
    Type: Application
    Filed: May 2, 2012
    Publication date: August 23, 2012
    Inventors: Shingo Kasai, Ikuo Uematsu, Ichiro Tono, Tomohiro Takase, Isao Nawata, Kayoko Oomiya, Yuriko Oyama, Tsutomu Honjoh
  • Publication number: 20120207439
    Abstract: An optical fiber includes a bare optical fiber portion, to which elastic torsion is applied, and a coating layer, which coats the bare optical fiber portion, is formed of curable resin, and causes elastic repulsion against resilience occurring in the bare optical fiber portion so that the elastic torsion applied to the bare optical fiber portion is held.
    Type: Application
    Filed: February 13, 2012
    Publication date: August 16, 2012
    Applicant: FUJIKURA LTD.
    Inventor: Kenji OKADA
  • Publication number: 20120201501
    Abstract: An optical cable comprises a tight-buffered optical cable and a protective sleeve which surrounds the tight-buffered optical cable. An intermediate layer surrounds the protective sleeve has tension-resistant elements. Furthermore, the optical cable contains a cable sheath which surrounds the intermediate layer, and a transitional area facing its inner surface. In this transitional area, the material of the cable sheath is mixed with the tension-resistant elements of the intermediate layer.
    Type: Application
    Filed: April 13, 2012
    Publication date: August 9, 2012
    Inventors: Rainer Kamps, Dieter Erwin Kundis, Gerhard Merbach, Waldemar Stöcklein
  • Patent number: 8236375
    Abstract: The specification describes a method for selectively depositing carbon nanotubes on the end face of an optical fiber. The end face of the optical fiber is exposed to a dispersion of carbon nanotubes while light is propagated through the optical fiber. Carbon nanotubes deposit selectively on the light emitting core of the optical fiber.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: August 7, 2012
    Assignee: OFS Fitel, LLC
    Inventor: Jeffrey Nicholson
  • Publication number: 20120195562
    Abstract: Provided is a manufacturing method for an optical waveguide in which, when the optical waveguide is cut and a contour thereof is processed, accuracy of a cut position is improved by improving visibility of an alignment mark. An undercladding layer, cores, and alignment marks are formed on a front surface of a substrate. Then, an overcladding layer is formed using a photomask so as to cover the cores with the alignment marks being exposed. After the substrate is separated to manufacture an optical waveguide body, a cut position is located with reference to the alignment marks from a rear surface side of the undercladding layer, and the undercladding layer and the overcladding layer are cut to manufacture the optical waveguide.
    Type: Application
    Filed: December 27, 2011
    Publication date: August 2, 2012
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yuichi Tsujita, Mayu Takase
  • Publication number: 20120189253
    Abstract: An electro-optical device may include a substrate having opposing first and second surfaces and an opening extending therebetween. The optical device may also include an optical waveguide extending laterally along the first surface and having an end aligned with the opening, and an electro-optical component carried by the second surface and aligned with the opening. The electro-optical device may further include an elastomeric body within the opening and having a first end face adjacent the optical waveguide and having a second end face adjacent the electro-optical component. The elastomeric body and the optical waveguide may have respective gradient refraction indices within ±5% of each other.
    Type: Application
    Filed: January 20, 2011
    Publication date: July 26, 2012
    Applicant: Harris Corporation
    Inventors: Lawrence Wayne Shacklette, Michael Ray Lange, Michael Raymond Weatherspoon, Gary M. Singer
  • Patent number: 8229255
    Abstract: An embodiment relates to an image sensor comprising (a) a optical pipe comprising a core and a cladding, and (b) a pair of photosensitive elements comprising a central photosensitive element and a peripheral photosensitive element, wherein the central photosensitive element is operably coupled to the core and the peripheral photosensitive element is operably coupled to the cladding, and methods of fabricating and using the same. The image sensor could further comprise a lens structure or an optical coupler or an optical coupler over the optical pipe, wherein the lens structure or the optical coupler or the optical coupler is operably coupled to the optical pipe.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: July 24, 2012
    Assignee: Zena Technologies, Inc.
    Inventor: Munib Wober
  • Publication number: 20120183255
    Abstract: A lens-integrated optical waveguide includes an optical conduit, a lens, and a non-wetting coating underlying the lens. A method for making an lens-integrated optical waveguide includes: forming an optical conduit having an end defining a planar end surface through which lights are transmitted out and received in; injecting a curable glue into a mold to form a pool of curable glues, the mold including a cavity having a concave shape to define a lens outer face; dipping the planar end of the optical conduit into the pool of curable glues; and curing the pool of curable glues onto the planar end surface of the optical conduit.
    Type: Application
    Filed: January 17, 2012
    Publication date: July 19, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: GENN-SHENG LEE
  • Publication number: 20120177319
    Abstract: A superstructure fiber Bragg gratings (FBG) by laser-assisted direct writing of on-fiber metallic films. A laser direct write method is used to fabricate periodic films of silver nanoparticles on the non-planar surface of as-fabricated FBGs. Silver films with a thickness of about 9 ?m are fabricated around a Bragg grating optical fiber. The performance of the superstructure FBG is studied by applying temperature and tensile stress on the fiber. An opto-mechanical model is also developed to predict the optical response of the synthesized superstructure FBG under thermal and structural loadings. The reflectivity of sidebands in the reflection spectrum can be tuned up to 20% and 37% under thermal and structural loadings, respectively. In addition, the developed superstructure FBG is used for simultaneous measurement of multiple criteria such as force and temperature to eliminate the inherent limitation of regular FBGs in multi-parameter sensing.
    Type: Application
    Filed: July 16, 2010
    Publication date: July 12, 2012
    Inventors: Hamidreza Alemohammad, Ehsan Toyserkani
  • Patent number: 8216637
    Abstract: An apparatus comprising a planar optical waveguide having an optical core and optical cladding next to the optical core. The optical core or cladding includes a plurality of particles therein. Each particle has a nucleus and polymeric molecules permanently bonded to the nucleus to form a shell. A plurality of nuclei are dispersed in said core or cladding.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: July 10, 2012
    Assignee: Alcatel Lucent
    Inventors: Christopher Richard Doerr, Ashok Maliakal
  • Publication number: 20120171442
    Abstract: A laminate of the present invention includes a first transparent resin layer, a first polymer liquid crystal layer, a second transparent resin layer, and a second polymer liquid crystal layer. A process for producing the laminate involves curing a resin to form the first transparent resin layer with certain liquid crystal alignment properties. The process then involves forming the first liquid crystal layer from a curable liquid crystalline monomer or a crosslinkable polymer liquid crystal on the first transparent resin layer. The first liquid crystal layer has the liquid crystal alignment properties of the first transparent resin layer. Next, the process involves forming a second transparent resin layer with different liquid crystal alignment properties on the first polymer liquid crystal layer, then forming a second polymer liquid crystal layer on the second transparent resin layer in the same manner.
    Type: Application
    Filed: January 12, 2012
    Publication date: July 5, 2012
    Applicant: Asahi Glass Company, Limited
    Inventors: Yuji YAMAMOTO, Yuriko Kaida, Ryohei Koguchi, Hiromi Sakurai
  • Publication number: 20120164399
    Abstract: A method for producing a colored or fluorescent substrate with a view to formation of a colored or fluorescent image including the formation. The method defines on a substrate of a colored or fluorescent matrix, pixels of at least two different colors, wherein each pixel forms a filter for a given color. At least one filter is an interferential filter or a filter obtained with colored or fluorescent particles.
    Type: Application
    Filed: June 4, 2010
    Publication date: June 28, 2012
    Applicant: COMMISARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALT
    Inventors: Alain-Marcel Rey, Chrystel Deguet, Laurent Frey, Francois Tardif
  • Publication number: 20120155821
    Abstract: A polymer waveguide including a polymer matrix and particles, wherein the particles are embedded in the polymer matrix and have lower optical bulk losses than the polymer matrix.
    Type: Application
    Filed: December 6, 2011
    Publication date: June 21, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Roger F. Dangel, Thilo H. Stoeferle, Jonas R. Weiss
  • Publication number: 20120156369
    Abstract: Provided are methods of forming an optical coupler. The method includes forming a first waveguide and an in-plane tapered layer on a silicon layer, forming a mask with first and second openings. The first opening is formed between the in-plane tapered layer and the second opening, and the second opening extends from the first opening with a gradually narrowing width. Thereafter, a planar waveguide and a three-dimensional tapered layer are simultaneously formed in the first and second openings, respectively. The planar waveguide has a substantially uniform thickness, and the three-dimensional tapered layer has a thickness gradually increasing with a decrease of the width thereof.
    Type: Application
    Filed: November 4, 2011
    Publication date: June 21, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: In Gyoo KIM, Sang Hoon KIM, Gyungock KIM
  • Publication number: 20120155806
    Abstract: An optical device includes an array of optical grating couplers and a plurality of single-core fiber couplers located over a planar substrate. The optical grating couplers of the array are located to optically couple in a one-to-one manner to optical cores of a multi-core fiber or optical cable having an end located adjacent to the surface. Each single-core fiber coupler includes a planar optical waveguide connecting a corresponding one of the optical couplers of the array to an edge of the substrate.
    Type: Application
    Filed: January 24, 2011
    Publication date: June 21, 2012
    Inventors: Christopher Doerr, Peter Winzer
  • Publication number: 20120155820
    Abstract: Embodiments of the invention use crystallographic etching of SOI wafers with a (110)-oriented epi layer to form both the vertical input facet and the re-entrant mirror. Proposed layout design combined with proposed orientation of the epi enables both vertical facets and re-entrant (upward-reflecting) mirror facets to be made in a single wafer-level wet etch process.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 21, 2012
    Inventors: John Heck, Haisheng Rong
  • Publication number: 20120155805
    Abstract: An optical device includes a substrate and a plurality of three or more planar waveguides formed over the substrate. Each planar waveguide includes a corresponding grating coupler formed therein. The grating couplers are arranged in a non-collinear pattern over said substrate. The plurality of grating couplers is configured to optically couple to a corresponding plurality of fiber cores in a multi-core optical cable.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 21, 2012
    Inventor: Christopher Doerr
  • Publication number: 20120141069
    Abstract: The present invention relates to a waveguide coupling device with properties of forward coupling and backward coupling as well as a manufacturing method thereof, the waveguide coupling device comprises: a substrate, at least one inverted taper coupling structure, an intermediate layer, and at least one three-dimensional taper coupling structure. Wherein one end of the three-dimensional taper coupling structure is adopted for connecting to an external optical fiber, so as to couple the optical wave propagating in the optical fiber; Moreover, by way of the specific coupling sequence of (three-dimensional taper coupling structure)-(intermediate layer)-(inverted taper coupling structure), the optical wave may be efficiently coupled into, be confined in, and ultimately propagates in the inverted taper coupling structure connecting to waveguide devices.
    Type: Application
    Filed: August 10, 2011
    Publication date: June 7, 2012
    Applicant: NATIONAL TSING HUA UNIVERSITY
    Inventors: Lee Ming-Chang, Ku Kai-Ning
  • Patent number: RE43480
    Abstract: The present invention provides materials suitable for use as secondary coatings of optical fibers. According to one embodiment of the invention, a curable composition includes an oligomer and at least one monomer, which when cured forms a cured polymeric material having a Young's modulus of at least about 1200 MPa, and a fracture toughness of at least about 0.7 MPa·m1/2. According to another embodiment of the invention, a coated optical fiber includes an optical fiber; a primary coating encapsulating the optical fiber; and a secondary coating encapsulating the primary coating, the secondary coating having a Young's modulus of at least about 1200 MPa, and a fracture toughness of at least about 0.7 MPa·m1/2.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: June 19, 2012
    Assignee: Corning Incorporated
    Inventors: Michelle D Fabian, Gregory S Glaeseman, David N Schissel