Optical Fiber Bundle Patents (Class 385/115)
  • Patent number: 7570855
    Abstract: A conduit bundle includes an inner bundle of first-type conduits extending between inner-bundle first and second ends. The first-type conduits are mutually and adjacently bonded along coinciding portions of their lengths in order to define an inner-bundle rigid region that, as view into a plane orthogonal to the longitudinal axis of the inner-bundle rigid region, exhibits an inner-bundle periphery. A separation structure including a structure wall having structure-wall inside and outside surfaces is provided and the inside surface thereof is bonded to the periphery of the inner-bundle rigid region. The conduit bundle further includes a plurality of second-type conduits. Each second-type conduit includes a rigidly bonded region along at least a portion of the length thereof that is bonded to at least one of (i) the structure-wall outside surface and (ii) the bonded region of another second-type conduit of the plurality of second-type conduits.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: August 4, 2009
    Assignee: Schott Corporation
    Inventors: Richard Strack, Martin Freundt
  • Publication number: 20090190891
    Abstract: An optical fiber structure includes a first fiber array and a second fiber array, which are placed one on the other. For example, the first fiber array includes a substrate having four V-shaped grooves and four first optical fibers, the output ends of which are linearly arranged and fixed to the grooves. The second fiber array includes a substrate having four V-shaped grooves and four second optical fibers, the output ends of which are linearly arranged and fixed to the grooves. The first optical fiber has a taper portion, in which the core diameter decreases along an optical axis, and the core diameter and the outer diameter of the first optical fiber at the tip of the taper portion thereof are 60 ?m and 80 ?m, respectively. The core diameter and the outer diameter of the second optical fiber are 105 ?m and 125 ?m, respectively.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 30, 2009
    Applicant: FUJIFILM Corporation
    Inventor: Shinichi SHIMOTSU
  • Patent number: 7557985
    Abstract: A light emitting device includes a first unit having a first excitation light source including a laser element emitting blue wavelength band excitation light, and a first wavelength converting member including at least one type of fluorescent material and which absorbs at least a portion of a first excitation light, converts the wavelength, and releases light with a wavelength longer than the first excitation light, and a second unit having a second excitation light source including a laser element which emits excitation light with a wavelength band shorter than the blue wavelength band excitation light, and a second wavelength converting member which includes at least one type of fluorescent material and which absorbs at least a portion of a second excitation light, converts the wavelength, and releases light with a wavelength longer than the second excitation light. The first unit and the second unit are combined using a bundle fiber.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: July 7, 2009
    Assignee: Nichia Corporation
    Inventors: Atsutomo Hama, Shinichi Nagahama, Yukihiro Hayashi
  • Publication number: 20090169160
    Abstract: A fiber-optic apparatus for receiving emitted radiation from a diode laser having at least one diode laser bar with a multiplicity of emitters which are arranged in at least one row alongside one another in the direction of their longitudinal axis. The fiber-optic apparatus has at least one optical fiber bundle that is associated with the diode laser bar and into which the laser beam is injected. Each emitter has a multiplicity of associated optical fibers. The optical fibers are hot-fused to one another under pressure and without regulation on the input side in order to form at least one fiber wedge with an inlet surface. The emitters of the diode laser bar are directly associated with at least one inlet surface in order to completely receive the laser light emitted from the diode laser bar.
    Type: Application
    Filed: December 18, 2008
    Publication date: July 2, 2009
    Applicant: SCHOTT AG
    Inventors: Thomas Weingartner, Matthias Ertl, Thomas Reichert
  • Patent number: 7555185
    Abstract: A microchannel plate and a method of making same are disclosed. The microchannel plate has an active area and at least one solid glass pad. The active area has a plurality of microchannels formed therein. The solid glass pad or pads are formed within the active area, and preferably at peripheral locations, for mounting the microchannel plate. With this arrangement, shrinkage of the microchannel plate during fabrication and hydration induced swelling of the active area after fabrication of the microchannel plate do not result in catastrophic warping or cracking of the microchannel plate.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: June 30, 2009
    Assignee: Burle Technologies, Inc.
    Inventors: Bruce N. Laprade, Francis Langevin
  • Patent number: 7555181
    Abstract: A distribution fiber optic cable including a plurality of optical fibers, a main cable body with some of the plurality of optical fibers being disposed within the main cable body, at least one tether optical fiber, and a cable jacket. The at least one tether optical fiber is one of the plurality of optical fibers that transitions during manufacturing from a first location within the main cable body to a tether access location for a portion of the distribution cable. The cable jacket includes a main cable body jacket and a tether access jacket portion that are connected together by a continuous transition that is applied during cable manufacturing. Thus, the craftsman may conveniently access the at least one tether optical fiber for distribution into the optical network.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: June 30, 2009
    Assignee: Corning Cable Systems LLC
    Inventors: Kenneth D. Temple, Jr., David L. Dean, Jr., Jody L. Greenwood, Warren W. McAlpine, Keith H. Lail, Craig M. Conrad
  • Patent number: 7548674
    Abstract: The present invention relates to a method of aligning circular multi-core fibers, wherein the method utilized independent and individually selected cores to receive, transmit, and emit light from input devices. The present invention further relates to positioning the ends of a multi-core fiber in order to detect and determine the precise locations of individually selected core fibers.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: June 16, 2009
    Assignee: International Business Machines Corporation
    Inventors: Akihiro Horibe, Fumiaki Yamada, Yoichi Taira
  • Patent number: 7548672
    Abstract: The present invention provides a fiber-based light source device, which includes a plurality of first, second or third light-emitting devices for respectively emitting a plurality of first, second or third lights, a plurality of first, second or third directional couplers for respectively coupling the first, second or third lights in their order so as to generate a first, second or third coupled light, a fourth directional coupler for coupling the first coupled light and the second coupled light so as to generate a fourth coupled light, and a fifth directional coupler for coupling the third coupled light and the fourth coupled light so as to generate an output light source. With coupling light beams from light-emitting devices and switching of those light-emitting devices in a sequential manner, the energy loss could be minimized and good heat dissipation could be obtained.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: June 16, 2009
    Assignee: Chung Shan Institute of Science and Technology
    Inventors: Huang-Tzung Jan, Ruey-Nan Yeh
  • Patent number: 7548676
    Abstract: An optical converter and method for making same is provided. In accordance with the method, the present invention provides an improved apparatus and methods for fabrication of an optical converter. In one aspect of the invention a method for forming an optical converter is provided. In accordance with this method at least two light guide ribbon structures are provided, with each light guide ribbon structure formed by the steps of roll molding a substrate having a pattern of channels with each channel extending from an input edge to an output edge of said substrate and forming light guides extending along each of the channels from the input edge to the output edge. The at least two light guide ribbon structures are assembled in a stacked arrangement.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: June 16, 2009
    Assignee: Eastman Kodak Company
    Inventors: Roger S. Kerr, Ronald S. Cok, David Kessler, Cheryl J. Kaminsky, Robert P. Bourdelais
  • Patent number: 7544527
    Abstract: An optoelectronic assembly for an electronic system includes a thermally conductive, metallized transparent substrate having a first surface and an opposite second surface. A support chip set is bonded to the transparent substrate. A first substrate is in communication with the transparent substrate via the second surface and support chip set therebetween. A second substrate is in communication with the second surface of the first substrate and is configured for mounting at least one of data processing, data switching and data storage chips. An optoelectronic transducer is in signal communication with the support chip set, and an optical signaling medium having one end with an optical fiber array aligned with the transducer is substantially normal to the first surface of the transparent substrate. The support chip set and the transducer share a common thermal path for cooling.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: June 9, 2009
    Assignee: International Business Machines Corporation
    Inventors: Alan F. Benner, How Tzu Lin, Frank L. Pompeo, Subhash L. Shinde
  • Patent number: 7543994
    Abstract: A multi-fiber connector module for optical communications is provided that receives collimated beams of light from a transceiver module and focuses the collimated beams to respective focal points that coincide with the ends of respective transmit fibers. Because the inputs to the connector module are collimated light beams, movements of one or more parts of the connector and/or transceiver module will not result in optical losses as long as the movements are not so great as to prevent the collimated light beams from falling fully on the lenses of the optics system of the connector module. The lenses then focus the collimated light beams onto the ends of the transmit fibers.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: June 9, 2009
    Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.
    Inventor: Laurence Ray McColloch
  • Patent number: 7536074
    Abstract: An optical fiber made of silica-based material includes a core and a cladding formed around the core. The core is doped with germanium dioxide, which increases refractive index and decreases acoustic-wave velocity, and aluminum oxide, which increases both refractive index and acoustic-wave velocity, satisfying—2.814+0.594×W1?W2?54.100+0.218×W1, W1+W2?60, and W2?56.63?2.04×W1, where W1 is doping amount of germanium dioxide in weight percentage, which is larger than 4.74, and W2 is doping amount of aluminum oxide in weight percentage. A nonlinear coefficient of the optical fiber is equal to or larger than 2.6×10?9W?1.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: May 19, 2009
    Assignee: The Furukawa Electric Co., Ltd.
    Inventor: Masateru Tadakuma
  • Patent number: 7532795
    Abstract: The invention relates to a radiation-curable liquid resin composition comprising: (A) 20-90 wt % of a urethane(meth)acrylate oligomer, and (B) 1-35 wt % of a monomer shown by the following formula (1), wherein R1 represents a hydrogen atom or a methyl group, R2 and R3 individually represent a hydrogen atom or an alkyl group having 1-4 carbon atoms, R4 represents a hydrogen atom or a methyl group, and n represents an integer of 1-6, or a monomer including a hydroxyl group.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: May 12, 2009
    Assignees: DSM IP Assets B.V., JSR Corporation
    Inventors: Atsuya Takahashi, Takeo Shigemoto, Zen Komiya, Hiroki Ohara
  • Patent number: 7526164
    Abstract: A polarizer is formed with an arrangement of polymer fibers substantially parallel within a polymer matrix. The polymer fibers are formed of at least first and second polymer materials. At least one of the polymer matrix and the first and second polymer materials is birefringent, and provides a birefringent interface with the adjacent material. Light is reflected and/or scattered at the birefringent interfaces with sensitivity to the polarization of the light. In some embodiments, the polymer fibers are formed as composite fibers, having a plurality of scattering polymer fibers disposed within a filler to form the composite fiber. In other embodiments, the polymer fiber is a multilayered polymer fiber. The polymer fibers may be arranged within the polymer matrix as part of a fiber weave.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: April 28, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew J. Ouderkirk, Richard C. Allen, Patrick R. Fleming, Diane North, Andrew T. Ruff, Kristin L. Thunhorst
  • Publication number: 20090103872
    Abstract: A method of making a multi-fiber assembly with irregular hexagonal array, which includes the steps of forming a plurality of primitives each made of a plurality of fibers, said fibers having cylindrical outer surfaces of same diameter and being arranged in an irregular hexagonal array, said irregular hexagonal array having six sides wherein three alternate sides of said primitive are each composed of n fibers and the other three alternate sides of said primitive 11 are each composed of n-1 fibers; and bringing together said primitives in such a way that sides with n fibers of said primitives are in contact with sides with n-1 fibers of other primitive thereby arranging said fibers at a central portion among said primitives in alignment with one another and therefore preventing said fibers at said central portion from squeezing one another.
    Type: Application
    Filed: October 17, 2007
    Publication date: April 23, 2009
    Inventor: Chun-I Lu
  • Patent number: 7522796
    Abstract: A camera (1) has a tubular housing (3) having an emission window (7). A unitized optical fiber bundle (9) is provided on the inner surface of the housing (3) by utilizing a bundle of light guiding optical fibers on the inner surface. The unitized optical fiber bundle (9) is placed on and bonded to the inner surface of the housing (3) with the fibers bonded together by a bonding agent. An end section of the unitized optical fiber bundle (9) reaches the emission window (7) of the housing (3) to be exposed. The camera (1) has sufficient waterproof capability and is easy to produce, and capable of avoiding a decrease in the amount of light.
    Type: Grant
    Filed: January 17, 2005
    Date of Patent: April 21, 2009
    Assignee: Panasonic Corporation
    Inventors: Tamotsu Uchida, Hideto Kato
  • Publication number: 20090095913
    Abstract: The present invention relates to an X-ray line array detector in which a bundle of light-guide fibers is provided between an emergent surface of a flicker body and an incident surface of an array of photosensors, and the bundle of light-guide fibers has at least one bend, or an incident direction and an emergent direction are not in a same line, so that X-rays transmitting through the flicker body can not irradiate photosensors and integrated circuits behind them, and that damage resulting from long-term use or a large dose of X-ray radiation can be avoided, thereby prolonging lifetime of the line array detector.
    Type: Application
    Filed: April 4, 2008
    Publication date: April 16, 2009
    Inventors: Honglin Yu, Zhengyu Jin, Kuncheng Li, Xiaowei Sun, Gendi Jiang
  • Patent number: 7519252
    Abstract: A laser annealing apparatus comprises a laser oscillator having a Q switching action, one or a plurality of partially reflective mirrors for split a laser beam emitted from the laser oscillator into a plurality of laser beams, a plurality of optical fibers which respectively transmit the plurality of laser beams split by the partially reflective mirrors, and whose respective emission ends are arranged linearly in one direction, a first optical system for synthesizing and homogenizing the plurality of laser beams emitted from the optical fibers, and a second optical system for focusing the laser beam emitted from the first optical system on the work piece surface as a rectangular laser beam whose beam shape is long in the lateral direction and short in the longitudinal direction.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: April 14, 2009
    Assignee: Laserfront Technologies, Inc.
    Inventors: Keiko Morita, legal representative, Hiroyuki Morita
  • Patent number: 7515800
    Abstract: The invention relates to a display device having a fiber-optic plate and a display with an image plane on which the image information of the display is generated, the fiber-optic plate comprising a fiber bundle with a multiplicity of fiber cores extending beside one another, which are enclosed by a cladding material and which transmit light from an entry face of the fiber-optic plate, facing the display, to an exit face of the fiber-optic plate, wherein the entry face of the fiber-optic plate lies further away from the image plane than the lateral dimension of the smallest image information representable by the display.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: April 7, 2009
    Assignee: Schott AG
    Inventors: Steffen Reichel, Burkhard Danielzik, Kevin Tabor, Michael Weisser
  • Patent number: 7512301
    Abstract: An image reader for reading an image drawn on a paper or a sheet-like recording medium, an image processor provided with the image reader, such as a copying machine, a scanner and the like, and a fiber lens to be applied to those devices. The image processor has to be large in the whole size of device to read both sides of an original. Therefore, the image processor of the present invention comprises an image reader (10a) on the upper side of transport path and an image reader (10b) on the lower side of that respectively. In order to downsize the device, it is necessary to shorten the diameter of optical fiber (140) of the fiber lens (14) installed in the imager reader as light receiving means. In this case, the optical fiber (140) is provided with a light-absorbing layer 8(143) around of the optical fiber (140) in order to restrain the crosstalk and the flare phenomenon. The illuminance of light source means (15) installed in the image reader gets smaller as the device is downsized.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: March 31, 2009
    Assignee: Panasonic Corporation
    Inventors: Tetsuroh Nakamura, Masaichiro Tatekawa
  • Patent number: 7509010
    Abstract: In an end surface closely arranged multicore optical fiber 200, at least two single-mode optical fibers 10 are, at one and the other ends of the individual single-mode optical fibers 10, closely arranged in parallel to each other and bound together, such that a center-center distance of adjacent single-mode optical fibers 10 is twice a core diameter of the single-mode optical fiber 10 or greater and 0.5 times a value obtained by subtracting the core diameter of the single-mode optical fiber from a core diameter of a multimode optical fiber to be connected or less, and that the remaining individual single-mode optical fibers 10 are individually independent from each other.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: March 24, 2009
    Assignees: National Institute of Advanced Industrial Science and Technology, Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Takashi Hiraga, Ichiro Ueno, Noritaka Yamamoto, Toshiko Mizokuro, Nobutaka Tanigaki, Norio Tanaka, Kuniaki Aoki, Masutaka Koyano, Kunio Ikuma
  • Patent number: 7504622
    Abstract: A high-throughput inspection system and method.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: March 17, 2009
    Assignee: Applied Materials, Israel, Ltd.
    Inventors: Emanuel Elyasaf, Nissim Elmaliah
  • Publication number: 20090067792
    Abstract: Step-index optical waveguides are made of multicomponent glass containing a core glass and an outer glass which entirely surrounds the core class. A fiber-optic cable for conducting electromagnetic radiation, contains at least one bundle of individual fibers which encompass the step-index optical waveguides that are made of multicomponent glass containing a core glass and an outer glass that entirely surrounds the core glass on the circumferential wall thereof. These step-index optical waveguides provide great transmission capacity for transmitting data while keeping the transfer characteristics sufficiently durable. Furthermore, the fiber-optic cable is resistant against physical and chemical environmental influences and be protected against radical ambient chemicals.
    Type: Application
    Filed: September 15, 2008
    Publication date: March 12, 2009
    Applicant: Schott AG
    Inventors: Axel Curdt, Lothar Willmes, Wolfgang Eis, Markus Kappel, Thomas Weingartner, Thomas Henrich, Wolfram Gehenn, Uwe Kolberg
  • Patent number: 7502535
    Abstract: A system of digitally controlling light output by producing separate control signals for different colors of light. The light is contained in an optical waveguide, either prior to shaping or after shaping. Each of the control signals is coupled to a digitally controlled device which controls the shape of the light output. The digital controlling device can be digital mirror devices, for example.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: March 10, 2009
    Inventor: Jeremiah J Harris
  • Patent number: 7502538
    Abstract: A system is provided to monitor a structure within an outer casing of a gas turbine engine. The system may comprise an optical fiber bundle, a fiber bundle palette and a camera palette assembly. The optical fiber bundle may have first and second ends. The first end is adapted to pass through a bore in the outer casing of the gas turbine engine so as to be positioned adjacent the structure within the gas turbine engine casing to be monitored. The fiber bundle palette is adapted to be located outside of the engine casing to receive the second end of the optical fiber bundle. The camera palette assembly comprises a fixture movable relative to the fiber bundle palette and a first camera mounted to the fixture. The first camera is adapted to be positioned adjacent to the second end of the optical fiber bundle so as to receive electromagnetic radiation received by the first end of and transmitted through the optical fiber bundle.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: March 10, 2009
    Assignee: Siemens Energy, Inc.
    Inventors: Hans-Gerd Brummel, Evangelos V. Diatzikis
  • Patent number: 7502537
    Abstract: A fiber-bundle disclosed has: a bundle of a plurality of optical fibers each receives a light beam in one end and emits the light beam from the other end; and an adjuster to adjust positions of a plurality of optical fibers. The configuration can realize a wide variety of irradiation patterns easily and freely.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: March 10, 2009
    Assignee: Panasonic Corporation
    Inventor: Shinsuke Kurahashi
  • Patent number: 7492998
    Abstract: The present invention relates to fiber bundles and methods for making fiber bundles. According to one embodiment of the invention, at the endface of the fused fiber bundle, the ratio of the cross-sectional area of the endface to the cross sectional area of the plurality of optical fibers is at least about 2.5. According to another embodiment of the invention, a fused fiber bundle includes a plurality of optical fibers, and a glass tube surrounding the terminal segments of the optical fibers, wherein the refractive index of the glass tube is less than the refractive index of the claddings of the optical fibers. Other embodiments of the present invention provide methods for making fused bundles.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: February 17, 2009
    Assignee: Corning Incorporated
    Inventors: William J. Miller, M. Heath Rasmussen, Luis A. Zenteno
  • Patent number: 7489845
    Abstract: A light device includes a base portion, a light portion having a first plurality of substantially translucent fiber optic elements and a second plurality of substantially translucent fiber optic elements, and a light source located within the base portion. A power supply may be electrically connected to the light source. The light source emits light to the first plurality of substantially translucent fiber optic elements and the second plurality of substantially translucent fiber optic elements. The first plurality of substantially translucent fiber optic elements may have a shorter length than the second plurality of substantially translucent fiber optic elements. The second plurality of substantially translucent fiber optic elements may have a modified tip region for reflecting light from the tip region. The light source may be formed by LEDs or tungsten filament bulbs. A control circuit may cause the light emitted to be constant or flashing.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: February 10, 2009
    Inventor: T. Y. Ip
  • Patent number: 7486863
    Abstract: A method of treating optical fiber includes at least a first step of creating a reduced-pressure atmosphere in a space which holds the optical fiber, and a second step of introducing to the space a deuterium-containing gas so as to expose the optical fiber to the gas.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: February 3, 2009
    Assignee: Fujikura Ltd.
    Inventors: Takahiro Hamada, Munehisa Fujimaki, Kenji Yamashiro, Koichi Harada, Yukinari Shirako, Hiroyuki Sawano
  • Patent number: 7486861
    Abstract: A fiber optical illumination delivery system, which is effective in reducing the effects of source coherence. The system preferably utilizes either a single bundle of optical fibers, or serial bundles of optical fibers. In the single bundle embodiment, the differences in optical lengths between different fibers of the bundle is preferably made to be equal to even less than the coherence length of the source illumination. In the serial bundle embodiment, the fibers in the other bundle are arranged as groups of fibers of the same length, and it is the difference in lengths of these groups which is made equal to, or even more preferably, less than the overall difference in length between the shortest and the longest fibers in the other bundle. Both of these fiber systems enable construction of illumination systems delivering a higher level of illumination, but without greatly affecting the coherence breaking abilities of the system, thus enabling a generally more applicable system to be constructed.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: February 3, 2009
    Assignee: Negevtech Ltd.
    Inventor: Dov Furman
  • Patent number: 7483607
    Abstract: A microsurgical laser probe primarily used in ophthalmic surgery provides both laser light and illumination light to a surgical site from a single light source. The laser probe has a dual core optic fiber that transmits both laser light and illumination light to the surgical site. A center core of the optic fiber transmits the laser light through the optic fiber and emits the laser light at the surgical site. The center core of the fiber is surrounded by an outer fiber core. The outer fiber core transmits illumination light through the optic fiber and emits the illumination light at the surgical site.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: January 27, 2009
    Assignee: Synergetics, Inc.
    Inventor: Timothy John Nadolski
  • Patent number: 7483609
    Abstract: An image wavelength conversion device for converting an infrared light image into a visible light, a method of manufacturing the device, and an image conversion system using the device are provided. The image wavelength conversion device is formed by an optical waveguide array 3 in which one end and the other end of each of a multitude of quasi-phase-matching sum frequency generating optical waveguides are aligned in a two-dimensional plane. One plane of the optical waveguide array 3 forms an incident plane which includes respective waveguides as elements thereof, and the other plane of the optical waveguide array 3 forms an exit plane which includes waveguides corresponding to the waveguides of the incident plane as elements thereof. From an incident light (?1) and an excitation light (?2) incident to an arbitrary element of the incident plane, an output light (?3) having the relationship of (?1)?1+(?2)?1=(?3)?1 is generated in the corresponding waveguide element.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: January 27, 2009
    Assignee: Hamamatsu Foundation for Science and Technology Promotion
    Inventor: Makoto Minakata
  • Publication number: 20090022458
    Abstract: A technique is provided for utilizing an optical fiber in a variety of sensing applications and environments by beneficially routing the optical fiber. A continuous optical fiber is created to provide optical continuity between two ends of the optical fiber. The optical continuity is created with the assistance of an optical turnaround constructed in a simple, dependable form able to control the bend of the optical fiber as it extends through the optical turnaround.
    Type: Application
    Filed: June 27, 2008
    Publication date: January 22, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Harini Varadarajan, Scott A. Rubinstein, Rogerio T. Ramos
  • Patent number: 7480433
    Abstract: An electro-optical system includes an array including a plurality of optical fibers and a plurality of electrodes, and an insulator. The optical fibers are configured to transmit light, the optical fibers being mechanically coupled at distal ends in a distal arrangement and mechanically coupled at proximal ends in a proximal arrangement. The plurality of electrodes are substantially coaxially disposed with at least portions of corresponding optical fibers, the electrodes being electrically conductive, with the electrodes and optical fibers being disposed in pairs, thereby being pair components, with one of the pair components of each pair being disposed about a radial periphery of the other pair component. The insulator is disposed between the plurality of electrodes and configured to inhibit transfer of electrical energy between the plurality of electrodes.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: January 20, 2009
    Assignee: Tufts University
    Inventors: David R. Walt, Sabine Szunerits
  • Publication number: 20090016681
    Abstract: An optical transmission fiber is formed to include a relatively low-index, relatively thin outer cladding layer disposed underneath the protective polymer outer coating. Stray light propagating along an inner cladding layer(s) within the fiber will be refracted into the thin outer cladding (by proper selection of refractive index values). The thin dimension of the outer cladding layer allows for the stray light to “leak” into the outer coating in a controlled, gradual manner so as to minimize heating of the coating associated with the presence of stray light. The inventive fiber may also be bent to assist in the movement of stray light into the coating.
    Type: Application
    Filed: September 8, 2008
    Publication date: January 15, 2009
    Inventors: David John DiGiovanni, Yoshihiro Emori, Michael Fishteyn, Clifford Headley
  • Publication number: 20090003783
    Abstract: The present invention provides nanometer-sized diameter silica fibers that exhibit high diameter uniformity and surface smoothness. The silica fibers can have diameters in a range of a about 20 nm to about 1000 nm. An exemplary method according to one embodiment of the invention for generating such fibers utilizes a two-step process in which in an initial step a micrometer sized diameter silica preform fiber is generated, and in a second step, the silica preform is drawn while coupled to a support element to form a nanometer sized diameter silica fiber. The portion of the support element to which the preform is coupled is maintained at a temperature suitable for drawing the nansized fiber, and is preferably controlled to exhibit a temporally stable temperature profile.
    Type: Application
    Filed: July 8, 2008
    Publication date: January 1, 2009
    Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
    Inventors: Eric Mazur, Limin Tong, Rafael Gattass
  • Publication number: 20080310805
    Abstract: An optical fiber is made of silica-based glass, and includes a core and a cladding. The optical fiber has a mode field diameter of 5.4 micrometers or larger at a wavelength of 1300 nanometers, transmits light with a wavelength of 1250 nanometers in a single mode, and has a bending loss of 1 dB/turn or smaller at a wavelength of nanometers when the optical fiber is bent with a curvature radius of 1 millimeter.
    Type: Application
    Filed: August 15, 2008
    Publication date: December 18, 2008
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Ryuichi SUGIZAKI, Iwao Shimotakahara, Harumi Inaba, Takeshi Yagi
  • Publication number: 20080310803
    Abstract: A fibre optic ribbon has several individual optical fibres, provided, for example, for application of the ribbon conductor as flex sensor trip, with surface-treated partial regions in which individual optical fibres can be provided. The individual fibres are arranged in a support strip with a space between, such that a treatment of the individual fibres, which permits a particularly simple execution of the surface treatment. The individual fibres are treated with removal of the support strip in the partial regions and finally the support strip is provided with a sleeve. Additional passive optical fibres can be inserted in the spaces for protection of the individual fibres during the surface treatment which give additional protection to the individual fibres.
    Type: Application
    Filed: December 6, 2005
    Publication date: December 18, 2008
    Applicant: Siemens Aktiengesellschaft
    Inventors: Martin Franke, Tobias Happel, Mathias Miedreich, Helmut Nowsch
  • Publication number: 20080310804
    Abstract: A system is provided to monitor a structure within an outer casing of a gas turbine engine. The system may comprise an optical fiber bundle, a fiber bundle palette and a camera palette assembly. The optical fiber bundle may have first and second ends. The first end is adapted to pass through a bore in the outer casing of the gas turbine engine so as to be positioned adjacent the structure within the gas turbine engine casing to be monitored. The fiber bundle palette is adapted to be located outside of the engine casing to receive the second end of the optical fiber bundle. The camera palette assembly comprises a fixture movable relative to the fiber bundle palette and a first camera mounted to the fixture. The first camera is adapted to be positioned adjacent to the second end of the optical fiber bundle so as to receive electromagnetic radiation received by the first end of and transmitted through the optical fiber bundle.
    Type: Application
    Filed: June 14, 2007
    Publication date: December 18, 2008
    Inventors: Hans-Gerd Brummel, Evangelos V. Diatzikis
  • Patent number: 7461982
    Abstract: An illumination device is described containing optical fibers that transmit electromagnetic energy from a source to a target. Additional optical fibers return reflected electromagnetic energy from the target. High-level electromagnetic energy can be used for cutting, reforming, or treating a surface. Low-level electromagnetic energy illuminates the surface.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: December 9, 2008
    Assignee: Biolase Technology, Inc.
    Inventors: Dmitri Boutoussov, Jeffrey W. Jones, Ioana M. Rizoiu
  • Patent number: 7463806
    Abstract: The present invention provides methods of generating short wavelength radiation, methods of transporting short wavelength radiation, and apparati used in these methods. One embodiment of the invention provides a method of transporting short wavelength radiation using a photonic band gap fiber. Another embodiment of the invention provides a method of transporting short wavelength radiation using a bundle of photonic band gap fibers. Another embodiment of the invention provides a method of generating ultraviolet radiation using high harmonic generation by pumping a noble gas-filled photonic band gap fiber with a pulsed laser source.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: December 9, 2008
    Assignee: Corning Incorporated
    Inventors: Nicholas F. Borrelli, John H. Bruning, Douglas S. Goodman, Karl W. Koch, III, Dirk Mueller, Charlene M. Smith, Alexander Streltsov, James A. West
  • Patent number: 7460755
    Abstract: A fiber optic apparatus formed by fusing together multiple optical fibers and stretching the fused optical fibers to form a tapered portion. The tapered portion is cleaved or cut and polished to form a facet at which an optical beam is received or transmitted.
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: December 2, 2008
    Assignee: HRL Laboratories, LLC
    Inventors: Hans W. Bruesselbach, Monica Minden, Cris Jones, Dave Hammon
  • Patent number: 7460752
    Abstract: A low-cost alignment system suitable for aligning a wafer to a test fixture includes a bundle of optical fibers wherein at least one fiber serves to deliver illumination to the alignment target from an end thereof, and a plurality of receiver fibers, each having ends with a known spatial relationship to the end of the illuminator fiber. The ends of the fiber bundle have a known spatial relationship to the fixture. In some embodiments, the fiber bundle is disposed within the fixture such that there is an unobscured optical path between the wafer and the receiving and illuminating ends of the fibers. In some embodiments, the fiber bundle is coupled to a light source and a light sensor mounted on the fixture. In some embodiments the alignment target is one or more bonding pads disposed on a wafer.
    Type: Grant
    Filed: May 24, 2008
    Date of Patent: December 2, 2008
    Inventor: Morgan T. Johnson
  • Patent number: 7460754
    Abstract: A medical inspection device. A housing includes a transparent plate and a first opening. A reflective layer is formed in the housing and opposes the transparent plate. The first opening is between the reflective layer and the transparent plate. A grip is connected to the first opening and extends in the exterior of the housing. An optical fiber bundle is connected to the first opening and disposed in the grip. The optical fiber bundle extends to the exterior of the grip and outputs light into the housing. The light is output to the exterior of the housing by reflection of the reflective layer and through the transparent plate. An image outside the housing is received by the optical fiber bundle through the transparent plate and by reflection of the reflective layer.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: December 2, 2008
    Assignee: Industrial Technology Research Institute
    Inventors: Kun-Feng Lee, Ching-Yi Wu, Yu-Shih Chen, Yuh-Jiuan Lin, Hsi Feng Kao
  • Patent number: 7457499
    Abstract: A method and apparatus are described, which permit a simple, rapid manufacture of an end of an optical fiber bundle. According to the method a metallic sleeve is placed on an end section of the bundle, the end section with the sleeve on it is positioned in a shaping tool without pressing the sleeve and then pressure is exerted on the sleeve exclusively in a radial direction by press jaws of the shaping tool. In the optical fiber bundle made by the method the outer optical fibers (4?) of the optical fiber bundle (1) are embedded at least partially in the sleeve material. The apparatus for making the end of the bundle (1) with the sleeve (10) has a shaping tool (20) including at least two radially movable press jaws (22a-22f) that substantially surround the sleeve (10).
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: November 25, 2008
    Assignee: Schott AG
    Inventors: Hubertus Russert, Thomas Heinrich
  • Publication number: 20080273847
    Abstract: A low-cost alignment system suitable for aligning a wafer to a test fixture includes a bundle of optical fibers wherein at least one fiber serves to deliver illumination to the alignment target from an end thereof, and a plurality of receiver fibers, each having ends with a known spatial relationship to the end of the illuminator fiber. The ends of the fiber bundle have a known spatial relationship to the fixture. In some embodiments, the fiber bundle is disposed within the fixture such that there is an unobscured optical path between the wafer and the receiving and illuminating ends of the fibers. In some embodiments, the fiber bundle is coupled to a light source and a light sensor mounted on the fixture. In some embodiments the alignment target is one or more bonding pads disposed on a wafer.
    Type: Application
    Filed: May 24, 2008
    Publication date: November 6, 2008
    Inventor: Morgan T. Johnson
  • Patent number: 7447407
    Abstract: The present invention is related to assemblies of luminous ornaments having optical fiber cables arranged in parallel, each formed by luminous optical fibers sheathed with a transparent tube, with interlaced connection elements formed therebetween, thereby forming a luminous net when being expanded.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: November 4, 2008
    Inventor: Jean-Hway Lee
  • Patent number: 7445832
    Abstract: A ribboned polarization-maintaining fiber is used to easily manufacture a polarization-maintaining optical fiber array with multiple fibers and improve the work efficiency and yield. The ribboned polarization-maintaining fiber includes a plurality of polarization-maintaining fibers, and has a ribbon portion of 2 to 300 mm in length surrounding at least some of the polarization-maintaining fibers. The ribboned polarization-maintaining fiber is manufactured by arranging the polarization-maintaining fibers with an exact pitch width while the end face of the polarization-maintaining fibers are rotationally adjusted so as to have a predetermined plane of polarization and then by fixing and coating a part thereof by and with an adhesive, thereby forming the ribbon portion.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: November 4, 2008
    Assignee: NGK Insulators, Ltd.
    Inventors: Akira Matsumoto, Masashi Fukuyama
  • Patent number: 7444046
    Abstract: A single piece optic for coupling the output of a diode laser array into an optical fiber array is provided. The coupling optic has a planar back surface which, during use with a diode laser array, is positioned substantially parallel to the front face of the laser array. The coupling optic is fabricated from a single substrate and is comprised of a plurality of optical elements. Depending upon the technique used to fabricate the optical elements, the individual optical elements may be trapezoidally-shaped or rectangularly-shaped. The front surface of each optical element is tilted, thus preventing reflected laser radiation from resonating within the diode laser's emitters. Preferably the wedge angle for the tilted front surface is greater than 2 mrad, thus accomplishing the goal of limiting feedback into the emitters, and less than 4 mrad, thus reducing beam steering.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: October 28, 2008
    Assignee: nLight Photonics Corporation
    Inventor: Scott R. Karlsen
  • Publication number: 20080260335
    Abstract: The present technology relates generally to fibre optic cables their manufacture and uses. The technology has useful applications e.g. in the field of optical measurements such as biochemical laboratory instrumentation for measuring properties of samples on microtitration plates and corresponding sample supports. The technology has also applications in various laser technologies. The object of the technology is achieved by providing a fibre optic cable wherein an active surface with a determined form is provided at a first optical interface at the first end (451a, 451b) of the cable. The first end of the cable is fused into an exemplary circular form, the fused cable end including fibre ends both within the active surface and outside the active surface. At the opposite, second end of the cable, those fibres which have their first ends at the determined active surface area, are used for forming a second optical interface (452a, 452b).
    Type: Application
    Filed: December 7, 2007
    Publication date: October 23, 2008
    Applicant: Wallac Oy
    Inventors: Ville Laitala, Pauli Salmelainen