Fiber Adjustable Relative To Device Patents (Class 385/90)
  • Patent number: 7500792
    Abstract: An optoelectronic transmitting and/or receiving arrangement having: at least one optoelectronic component; an electrical printed circuit board having electrical contact areas for electrical contact-connection of the optoelectronic component; and a coupling arrangement for coupling light between the optoelectronic component and an optical waveguide to be coupled. In this case, the optoelectronic component is arranged directly on the printed circuit board and the printed circuit board is configured in such a way that a movable mounting of the optoelectronic component relative to the printed circuit board is present. A strain relief for the optoelectronic component is thereby provided as a result.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: March 10, 2009
    Assignee: Finisar Corporation
    Inventor: Daniel Supper
  • Patent number: 7488117
    Abstract: An optical transmitter relaxes the tolerance between a source assembly and a fiber receptacle to facilitate passive alignment. The source assembly includes a light source and a lens. The lens is held at a fixed distance away from the light source using precise support structures typically formed by photolithographic processes. The fiber receptacle includes an optical element. The fiber receptacle is adapted to hold an optical fiber at a fixed distance from the optical element. The lens substantially collimates light from the light source into the form of collimated light. The optical element focuses the collimated light onto the aperture of the optical fiber.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: February 10, 2009
    Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.
    Inventor: Ye Chen
  • Patent number: 7484897
    Abstract: There is provided an optical module for coupling with a fiber optic cable through an optical connector, including a module body connectable with a plug of the optical connector by a dedicated guide pin, with a side surface of the module body being opposed to a mating surface of the connector plug at which an end face of the fiber optic cable is exposed, and an optical element mounted to the module body and having an optical axis brought into alignment with an optical axis of the fiber optic cable upon fitting of the guide pin into the module body and the connector plug.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: February 3, 2009
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Masaki Ono, Toshikatsu Takada, Toshifumi Kojima, Takeshi Ohno, Susumu Wakamatsu, Toshikazu Horio, Ayako Kawamura
  • Publication number: 20090010600
    Abstract: An optical module and packaging thereof. A high speed optical module, such as a transceiver or transponder is disclosed. A fiber assembly including a receptacle, a fiber, and a modified connector are provided and enable an optical connection from inside of the optical component to outside of the component. Internally, the fiber assembly is detachable from an internal optical component. the optical component is connected to a PCB using a ball grid array. By detaching the fiber assembly, the optical component can be changed-out without damaging the fiber. The fiber is spooled inside the module to protect the fiber around a spooling assembly that is integrated with the receptacle holders that form part of the module's ports.
    Type: Application
    Filed: August 17, 2007
    Publication date: January 8, 2009
    Applicant: FINISAR CORPORATION
    Inventors: Daehwan Daniel Kim, Mark J. Donovan
  • Patent number: 7473039
    Abstract: An optoelectronic module is seated onto a substrate connector by guiding the module along an initial path portion that is misaligned with respect to the mating direction defined by the substrate connector and further includes providing a positive pressure drive along an end path portion with sufficient force to secure the optoelectronic module to the substrate connector. Where the mating is via a pin-and-socket arrangement, the positive pressure drive requires sufficient force to push the main body of the module to ensure entry of the pins into the sockets. Typically, there is a conversion from force applied in one direction to module motion in the orthogonal direction. However, a rocking cam embodiment is also described.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: January 6, 2009
    Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.
    Inventors: Robert H. Yi, Brenton A. Baugh, James H. Williams
  • Patent number: 7466924
    Abstract: The present invention is directed to a reconfigurable data communications system. The system includes a removable optical backplane connector with a first end and a second end, a first data communications card, and a switch fabric card. The first data communications card includes an optical port configured to receive the first end of the removable optical backplane connector. The switch fabric card has a plurality of optical ports adapted to receive the second end of the removable optical backplane connector.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: December 16, 2008
    Assignee: Cedar Point Communications, Inc.
    Inventors: Daniel W. English, Mark Galvin
  • Patent number: 7458731
    Abstract: A light transmitting/receiving module comprising a fiber assembly and a light source is provided. The fiber assembly includes a fiber, a ferrule, and a rigid tube. The fiber has an end segment, wherein the end segment has a slanted end surface. The ferrule covers the end segment and exposes the slanted end surface. An axis of the end segment in the ferrule has an included angle with an axis of the other part of the fiber. Additionally, the rigid tube covers the fiber and the ferrule, and an axis of the rigid tube is parallel to the axis of the other part of the fiber. The light source is disposed beside the slanted end surface and emits a light, wherein the light is emitted to the slanted end surface in a direction parallel to the axis of the rigid tube. The light transmitting/receiving module has an optimal light coupling efficiency.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: December 2, 2008
    Assignee: GigaComm Corporation
    Inventors: Horng-Nian Chen, Sung-Ping Huang
  • Publication number: 20080292249
    Abstract: There can be realized a compact optical network unit with an optical cable provided between an optical cable housing and an optical video terminal housing. When the optical video terminal housing is opened and closed by rotating 90 degrees or more about hinges connecting the two housings, the extra length of the optical cable is absorbed in an optical cable length adjustment portion of the optical video terminal housing as well as in an optical cable housing portion. Thus, the optical cable can be smoothly moved through a cable guide which is a base point of the movable portion of the optical cable, without an operation to prevent the optical cable from being stuck.
    Type: Application
    Filed: January 30, 2008
    Publication date: November 27, 2008
    Inventors: Yasushi KIMURA, Seiji Asai, Yoko Okubo, Minehiro Matsuo
  • Publication number: 20080273842
    Abstract: An optical connector comprising: first and second movable members 7, 8 held on an optical connector body 6 to be axially movable in a longitudinal direction; locking means for locking the first and second movable members when the first movable member is located at a predetermined locking position in a tip part of the optical connector body, and integrally moving the first and second movable members; and unlocking means formed in the optical connector body 6, and including a locking acting portion which acts on the locking means when the first movable member is located rearwardly of a predetermined unlocking position in a rear part of the optical connector body, to unlock the first and second movable members, and which locks the first and second movable members when the first movable member is located forwardly of the unlocking position, and a second movable member hooking portion 10 for inhibiting rearward movement of the second movable member after the first and second movable members are unlocked, and where
    Type: Application
    Filed: August 30, 2006
    Publication date: November 6, 2008
    Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, NTT ADVANCED TECHNOLOGY CORPORATION
    Inventors: Hiroshi Tanaka, Mitsuo Kama, Hiroshi Aoyama, Yasuo Oda, Ryo Nagase, Hideki Ishihara, Fumihiro Ashiya, Shinichi Iwano
  • Patent number: 7447437
    Abstract: An interface arrangement for opto-electronic data transfer which has an electrical plug connection part which includes at least one electrical contact used by a connected plug-in transceiver to provide information related to the data transfer rate at which the connected plug-in transceiver is able to transmit optical signals. An electrical control apparatus connected to this contact is used to set the data transfer rate of signals transferred from an electrical chip to a connected plug-in transceiver, the control apparatus taking several specified data transfer rates and setting that data transfer rate on the electrical chip which is the maximum at which a connected plug-in transceiver is able to transfer, provided that this data transfer rate is lower than the data transfer rate which has been set internally on the electrical chip. An opto-electronic transceiver which can be connected to an interface arrangement in plug-in fashion is also disclosed.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: November 4, 2008
    Assignee: Infineon Technologies Fiber Optics GmbH
    Inventor: Nikolaus Schunk
  • Patent number: 7438478
    Abstract: A light-guiding device applicable to a panel having at least a through hole includes a sleeve part and a light guide. The sleeve part is able to be mounted on the through hole, and includes a first combining portion and a positioning portion corresponding to the panel for positioning the sleeve portion on the panel. The light guide includes a second combining portion for engaging with the first combining portion, so as to fix the light guide on the panel in cooperation with the sleeve part, allowing an assembling/disassembling process of the light-guiding device to be easily performed.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: October 21, 2008
    Assignee: Inventec Corporation
    Inventor: Ho-Wen Kuo
  • Patent number: 7440647
    Abstract: An integrated fiber optic assembly includes some of the active components that are otherwise found in a typical transceiver. For example, a transmitter optical assembly includes a laser source, a laser driver, and a component for administering diagnostic data. A receiver optical assembly includes a photo-diode an optical converter, such as a transimpedance amplifier, and a processing control that can administer, for example diagnostic data associated with the receiver optical assembly. A combination optical assembly includes a photo-diode and a laser source, as well as many of the active components for driving, operating, or administering the laser source. In part since the active components can be placed in close proximity to each other, electrical impedance is reduced that would otherwise be present in a typical transceiver and optical subassembly.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: October 21, 2008
    Assignee: Finisar Corporation
    Inventor: Lucy G. Hosking
  • Patent number: 7438481
    Abstract: An optical semiconductor module comprises a guide which has a positioning portion for an optical transmission line, an optical semiconductor mounting surface from which one end face of the optical transmission line disposed in the positioning portion is exposed, and a wiring layer formed on the optical semiconductor mounting surface. An optical semiconductor element is mounted on the optical semiconductor mounting surface of the guide, with a light-emitting surface or a light-receiving surface thereof facing the one end face of the optical transmission line, and is electrically connected to the wiring layer.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: October 21, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideo Numata, Chiaki Takubo, Hideto Furuyama, Hiroshi Hamasaki
  • Patent number: 7413917
    Abstract: An optoelectronic device includes a submount and a lid. The submount includes a substrate and a lens and a laser above the substrate. The lid defines a cavity having a surface coated with a reflective material to form a 45 degree mirror. The mirror reflects a light from the laser to the lens and the light exits the optoelectronic device through the submount.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: August 19, 2008
    Assignee: Avago Technologies Fiber IP Pte Ltd
    Inventors: Kendra J. Gallup, James Albert Matthews
  • Patent number: 7401983
    Abstract: After a wiring plate 30 having a plurality of leads 31 been insert-molded to an edge face 21 of a molded article 20, unwanted portions of the wiring plate 30 are cut, thereby enabling easy three-dimensional wiring. As a result, an electrode terminal section 43 of a photoelectric conversion element 41 disposed opposite an end face 11b of an optical fiber 11 can be electrically coupled to an electrical wiring section 23 of an optical coupling part 10.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: July 22, 2008
    Assignees: Sumitomo Electric Industries, Ltd., Kabushiki Kaisha Toshiba
    Inventors: Wataru Sakurai, Kazuhito Saito, Hideo Numata, Chiaki Takubo, Hideto Furuyama, Hiroshi Hamasaki
  • Patent number: 7400790
    Abstract: In one embodiment, an assembly having a first board, a second board, a fiber bundle, and at least one movable stage is provided. The fiber bundle has a first end and a second end, and the first end of the fiber bundle is attached to the first board first face. The movable stage has a second optical array provided thereon or therein. The movable stage is disposed on the second board such that the at least one motor steers the movable stage. The movable stage is steered such that the second optical array is aligned with the second end of the fiber bundle in a desired manner.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: July 15, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Martin Fenwick, Richard John Luebs, Terrel L. Morris, Duane A. Wegher, Jeffrey D. Yetter
  • Patent number: 7390129
    Abstract: A light source that has a small size can provide uniform light at high efficiency and can have a high degree of freedom in design, a method for manufacturing this light source, and a projector having this light source include a solid-state light-emitting chip that supplies G-light, which is light of a predetermined wavelength range, a support, a package mold, and a heat sink that constitute a solid-state light-emitting chip supporting part for supporting the solid-state light-emitting chip, an optical guide that reflects the G-light and thus causes the G-light to exit into an illuminating direction, and a support, which is an optical guide supporting part for supporting the optical guide. A light exiting surface of the solid-state light-emitting chip and a light incident surface of the optical guide are provided at a predetermined spacing. The solid-state light-emitting chip is, for example, an InGaN-based LED flip chip.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: June 24, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Masatoshi Yonekubo, Hideya Seki, Takashi Takeda
  • Patent number: 7380995
    Abstract: A pluggable connector, such as an optical transceiver is provided for coupling an information system unit to a fiber optical cable. The connector includes a housing, a moveable collar disposed on an optical connector end of the housing, said collar surrounding an optical connector, a cam connected to said moveable collar and a spring loaded latch extending from a side of said housing for engaging a receptacle on the information system unit so as to secure the connector in the receptacle, said cam engaging the spring loaded latch such that when the moveable collar is pulled in a direction away from the housing the latch is retracted to enable the connector to be released from the receptacle.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: June 3, 2008
    Assignee: Emcore Corporation
    Inventor: Seng-Kum Chan
  • Patent number: 7380994
    Abstract: An integrated packaging system that comprises an integral mechanical support, a printed circuit board and the optical communications device. The mechanical support includes a first support element and a second support element. The first support element extends at a non-zero angle from the second support element. The printed circuit board includes a first portion and a second portion in contact with the first support element and the second support element, respectively. The optical communications device is mechanically coupled to the first support element of the mechanical support and is electrically connected to the first portion of the printed circuit board. The integrated packaging system preferably provides automatic alignment between the optical communications device and one or both of an optical element and an optical fiber. In this case, the first support element includes a device alignment feature.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: June 3, 2008
    Assignee: Avago Technologies Fiber IP Pte Ltd
    Inventors: Kirk S. Giboney, Paul K. Rosenberg, Albert T. Yuen
  • Patent number: 7379315
    Abstract: Optically-coupled memory systems are disclosed. In one embodiment, a system memory includes a carrier substrate, and a controller attached to the carrier substrate and operable to transmit and receive optical signals, and first and second memory modules. The module substrate of the first memory module has an aperture formed therein, the aperture being operable to provide an optical path for optical signals between the controller and an optical transmitter/receiver unit of the second memory module. Thus, the system memory provides the advantages of “free space” optical connection in a compact arrangement of memory modules. In an alternate embodiment, the first memory module includes a beam splitter attached to the module substrate proximate the aperture. In another embodiment, the first and second memory modules are staged on the carrier substrate to provide an unobstructed path for optical signals.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: May 27, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Terry R. Lee, Kevin J. Ryan
  • Patent number: 7376312
    Abstract: An optical element and an optical transmission member are fixedly secured onto a substrate so as to be coupled to each other. In this substrate, a through hole is formed between an optical element secured portion and an optical transmission member secured portion. In an attempt to assemble these optical transmission member and optical element so as to make the coupling at an optimal position, first, the position of the optical transmission member is adjusted to an optimal position, and after measuring the position by a laser micrometer, the optical transmission member is fixedly secured thereto by using a soldering material. Thus, measurements are again carried out by the laser micrometer to detect an amount of deviation from the measured value before the securing process, and the secured portion is again fused so that the optical transmission member is shifted based on the amount of deviation, and again fixedly secured thereon.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: May 20, 2008
    Assignee: Rohm Co., Ltd.
    Inventors: Shuichi Nawae, Jun Ichihara
  • Patent number: 7374348
    Abstract: An optoelectronic device having a hermetically sealed optoelectronic component and to a method of forming the device, which may for example be an optical transmitter or receiver device for use in a fiber optic communications network. The optoelectronic device comprises a first sub-assembly and a second sub-assembly, the first sub-assembly comprising at least one optoelectronic component. The optoelectronic component is optically aligned with the at least one optical element along an optical axis to form a housing for the optoelectronic component, the sub-assemblies being joined by at least two joins across the interface including at least one non-hermetic join and separate from the non-hermetic join(s) a hermetic join that extends fully around the optical axis to seal hermitically the optoelectronic component within the housing.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: May 20, 2008
    Assignee: Avago Technologies General IP Pte Ltd
    Inventors: Mark Jeffrey Dunn, David John Kenneth Meadowcroft
  • Patent number: 7371016
    Abstract: The invention relates to a method for producing an optical arrangement (10, 300), in which an optical component (355, 20) is optically connected to at least one waveguide (90, 320, 330) provided on or in a carrier substrate (100, 310). In order to enable an optical component to be connected to an optical waveguide of a carrier substrate in a particularly simple and thus cost-effective manner, the invention provides for there to be arranged between the optical component (20, 355) and the waveguide (90, 320, 330) an adjustment device (40, 350) with at least one auxiliary waveguide (60, 410, 440), the waveguide ends (50, 70, 400, 420, 430, 450) of which are in each case movable and an optical adjustment between the optical component (20, 355) and the waveguide (90, 320, 330) of the carrier substrate (100, 310) is effected by a mechanical adjustment of the movable waveguide ends (50, 70, 400, 420, 430, 450).
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: May 13, 2008
    Assignee: Finisar Corporation
    Inventors: Ingo Baumann, Detlef Krabe, Manfred Scheubeck, Andreas Schumacher
  • Patent number: 7371017
    Abstract: Au automated laser pressing system assembles and aligns a laser header subassembly to a lens housing. The automated system generally includes a precise press system and a fast fiber alignment system. The press system precisely presses the housing onto the header, or the header onto the housing, and the fiber alignment system keeps a fiber in alignment with light passed through the lens to measure the laser header to lens housing alignment. Feedback from the fiber alignment system to the housing press system is used to precisely and automatically adjust the alignment as necessary before the housing and header are permanently affixed.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: May 13, 2008
    Assignee: Finisar Corporation
    Inventors: Ting Shi, Nathan Jones, Pavel Ploscariu, Rick Zheng, Ed Ramos
  • Patent number: 7371015
    Abstract: Attachments are respectively attached to one ends of a pair of light guides, which are integrally formed via a connecting portion, such that the attachments surround the one ends of the light guides. The one ends protrude from a rear face of a receptacle body and are opposed to a light-emitting device and a light-receiving device, respectively. The attachments are inserted and positioned in guide holes formed respectively on the light-emitting device and the light-receiving device, and the optical axes of the pair of light guides and the optical axes of the light-emitting device and the light-receiving device are aligned with each other.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: May 13, 2008
    Assignee: Hosiden Corporation
    Inventors: Naoya Takehara, Hiroshi Nakagawa, Takeshi Isoda
  • Patent number: 7367715
    Abstract: A structure that possesses the combined properties of carrying signals through the provision of a series of electrical conductors, and by optical signals through the intermediary of a series of optical waveguides. This imparts a particular advantage thereto for the fabrication of optical data links, providing a convenient, compact method of interconnecting electrical paths to transducer chips and to waveguide structures. This approach solves the problem of connecting polymer waveguides to VCSEL (Vertical-Cavity-Surface-Emitting Laser) arrays, thereby avoiding the problem of damaging fragile wire bonds. A method is also provided which utilizes the foregoing structure.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: May 6, 2008
    Assignee: International Business Machines Corporation
    Inventors: Russell A. Budd, Punit P. Chiniwalla, Derek B. Dove, James L. Sanford
  • Patent number: 7367717
    Abstract: An optical transmission module has: an optical module having an optical element and a receptacle portion; a circuit board that is electrically connected to the optical module through an electrical connection member; and a housing in which the optical module and the circuit board are placed. The optical module is in surface-contact with and fixed onto the housing. The receptacle portion and the circuit board are not in contact with the housing. The receptacle portion is restricted in position while having a positional degree of freedom at least in a direction perpendicular to an optical axis of light emitted from the optical element. The circuit board is restricted in position while having a positional degree of freedom at least in a direction of the optical axis.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: May 6, 2008
    Assignee: Hitachi Cable, Ltd.
    Inventors: Juhyun Yu, Kinya Yamazaki, Hidetaka Kawauchi, Tenpei Inoue, Hiroki Katayama
  • Patent number: 7367720
    Abstract: The present invention provides an optical transceiver with an optical subassembly optically coupling with an optical connector via a receptacle member, in which the optical subassembly is positioned to the housing of the transceiver without causing any mechanical stress. The optical subassembly is fixed to the receptacle member by inserting a sleeve thereof into an opening of the receptacle member. The receptacle member is assembled with the housing via the holder by adjusting the positional relation between the holder and the housing. Therefore, even when the subassembly is fixed to the receptacle member via the sleeve thereof, the subassembly can fit to the housing without causing any mechanical stress because the holder is interposed therebetween, which secures the heat dissipating path from the optical subassembly to the housing.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: May 6, 2008
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Toshio Mizue, Manabu Ishikawa
  • Patent number: 7364374
    Abstract: A bi-directional transmitting and receiving device for the connection of optical fiber is mainly to apply one side of a T shape shell to connect an optical fiber, while another side of the shell in line with the optical fiber is arranged an optical transmitter, with an optical receiver being arranged at the third side of the shell, wherein the optical transmitter is a packaging structure of Transistor Outline can (TO-can) having a cup shape lid, of which underside is inclined 45 degrees to transmitted light beam, and wherein a hollow window in the underside of the lid is arranged a light splitting filter, which is just positioned at the beam path of the optical receiver.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: April 29, 2008
    Assignee: TrueLight Corporation
    Inventor: Daniel Liu
  • Patent number: 7364366
    Abstract: A guide insert having a guide member having an arcuate portion for bending an optical fiber of a backplane, and a circuit board assembly comprising the backplane and a daughterboard wherein the daughterboard is operatively connected to the backplane via the guide insert.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: April 29, 2008
    Assignee: Viasystems Group, Inc.
    Inventor: Joseph A. A. M. Tourne
  • Patent number: 7357580
    Abstract: A receptacle assembly that receives an optical connector. The receptacle assembly includes a first piece having a central bore with a stepped diameter. The receptacle assembly also includes an annular second piece designed to receive the optical connector and that has an outside surface designed to establish an interference fit with the inside surface of the first piece central bore. Further, the assembly includes an annular third piece that has a constant inner diameter and a stepped outer diameter. The outside surface of the third piece is designed to establish an interference fit with the inside surface of the annular second piece.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: April 15, 2008
    Assignee: Finisar Corporation
    Inventors: David J. Morgenstern, Stefan M. Pfnuer
  • Patent number: 7352935
    Abstract: In an optoelectronic conversion header, a ferrule holds an optical waveguide in a predetermined position so that an end face of the optical waveguide protrudes from an mounting surface of the ferrule. An electric wire is provided on the mounting surface of the ferrule, a optical semiconductor device is mounted on the mounting surface of the ferrule and electrically connected to the electric wire. From the end face of the optical waveguide, an optical signal is transferred in a transfer direction and the mounting surface of the ferrule is so arranged as to be deviated two degrees or more from a plane vertical to the transfer direction.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: April 1, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideto Furuyama, Hiroshi Hamasaki
  • Patent number: 7352603
    Abstract: Optically-coupled memory systems are disclosed. In one embodiment, a system memory includes a carrier substrate, and a controller attached to the carrier substrate and operable to transmit and receive optical signals, and first and second memory modules. The module substrate of the first memory module has an aperture formed therein, the aperture being operable to provide an optical path for optical signals between the controller and an optical transmitter/receiver unit of the second memory module. Thus, the system memory provides the advantages of “free space” optical connection in a compact arrangement of memory modules. In an alternate embodiment, the first memory module includes a beam splitter attached to the module substrate proximate the aperture. In another embodiment, the first and second memory modules are staged on the carrier substrate to provide an unobstructed path for optical signals.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: April 1, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Terry R. Lee, Kevin J. Ryan
  • Patent number: 7346242
    Abstract: The invention relates to an optical connector assembly for optically connecting to a waveguide structure in a x-y plane of a layer stack, wherein the connector assembly comprises a coupling device providing a first optical path, and the waveguide structure provides a second optical path, deflecting from said first optical path. The coupling device comprises first reference means adapted to co-operate with second reference means in the layer stack, wherein the second reference means are adapted for aligning the coupling device to the waveguide structure in both the x- and y-direction of the x-y plane as to optically couple the first and second optical path. As a result an optical connector assembly is provided that improves the optical coupling between the optical path in a waveguide structure and in a coupling device and/or a mating optical device. The coupling device may comprise third reference means to couple an optical connector to the waveguide structure.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: March 18, 2008
    Assignee: FCI
    Inventors: Danny Louis Cornelius Morlion, Jan Peter Karel Van Koetsem
  • Patent number: 7338218
    Abstract: An optical module includes a fiber array, a laser diode array and a photodiode array. The fiber array has optical fibers which are divided to a transmitter group and a receiver group. The laser diode array has laser diodes which are grouped in a transmitter group. The photodiode array has photodiodes which are divided to a monitor group and a receiver group. The laser diode array is provided between the fiber array and the photodiode array. Each optical fiber of the transmitter group, each laser diode of the transmitter group and each photodiode of the monitor group are optically aligned, respectively. Each optical fiber of the receiver group is optically aligned with each photodiode of the receiver group, respectively.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: March 4, 2008
    Assignee: Ibiden Co., Ltd.
    Inventors: Takemasa Tamanuki, Chris Keller
  • Patent number: 7334947
    Abstract: The present invention provides an alignment system comprising a base having a feature that accepts a first optical element, a first eccentric element having a through hole that accepts an eccentric assembly comprising a second eccentric element having a feature that accepts a second optical element and is attached to the second optical element via second attachment means, wherein the first eccentric element is engaged with the base via first attachment means and axial alignment between optical axis of the first optical element and optical axis of the second optical element is achieved by rotationally adjusting at least one of the eccentric elements relative to the base. The present invention also provides methods to make and use this alignment system.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: February 26, 2008
    Assignee: Ondine International Ltd
    Inventors: Andreas Rose, Guenter Herr, Kyle Johnston
  • Patent number: 7336884
    Abstract: A device for shifting the imaging axis of a microscope across the endfaces of a multi-fiber connector for inspecting the fiber-optic endfaces through the microscope comprises a supporting body for attaching at one end to the optical tube of a microscope; a pendular arm rotatably mounted to another end of the supporting body; a fitting tip attached to another end of the pendular arm; a bevel wheel fastened to the supporting body; and a torsion spring for pushing the pendular arm against a slanted surface of the bevel wheel. The bevel wheel is adapted to swing the pendular arm relative to the supporting body so that the imaging axis of the microscope is moved relative to the fitting tip to selectively align the imaging axis between adjacent fiber-optic endfaces for inspection.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: February 26, 2008
    Assignee: Lightel Technologies Inc.
    Inventors: Ge Zhou, Shangyuan Huang
  • Patent number: 7330546
    Abstract: A multimedia patching box including a generally rectangular housing. The housing includes a first wall positioned opposite from a second wall. The housing also includes opposing third and fourth walls that extend between the first and second walls. A panel is mounted adjacent the front of the housing. The panel is mounted to pivot about a pivot axis between an open position and a closed position. The pivot axis is located adjacent to the third wall of the housing and extends generally along the third wall of the housing. A plurality of multimedia connectors are mounted on the panel. The housing defines at least one cable access opening defined through at least one of the first and second walls at a location adjacent the third wall. A cable management structure is connected to the back side of the panel. The cable management structure defines a cable guiding channel that extends generally along the pivot axis of the panel and generally aligns with the at least one cable access opening.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: February 12, 2008
    Assignee: ADC Telecommunications, Inc.
    Inventors: Bradley Scott Kessler, Jeffrey Scott Hartzler, Cory Lee Grabinger
  • Patent number: 7329053
    Abstract: An optical transmission device configured from a case that holds an optical element that receives and/or transmits light, the case being provided with a plug insertion hole into which a plug for transmitting an optical signal is inserted; and a shutter mechanism having a shutter that opens and closes the plug insertion hole; wherein the case is provided with an installation part that holds the shutter such that it can rotate freely, and wherein the shutter mechanism can be installed from the outside to the installation part.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: February 12, 2008
    Assignees: Sharp Kabushiki Kaisha, Yufu Gosei Kagaku Co., Ltd.
    Inventors: Atsushi Sohmura, Hiroshi Mizuno, Mitsuhisa Ikuta, Kazuhiro Mitsumoto, Shigeru Umeki
  • Patent number: 7324729
    Abstract: An optical device is made up of a glass substrate, an optical fiber array fixed to an upper portion of the glass substrate, a slit that extends from an upper surface of the optical fiber array into the glass substrate, a filter member inserted into the slit, and a resin filled in an interval between the slit and the filter member. An upper end of a light-incident surface of the filter member is positioned substantially in alignment with upper surfaces of the optical fibers, and an upper end of a light-exiting surface of the filter member is disposed at a position below the upper surfaces of the optical fibers.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: January 29, 2008
    Assignee: NGK Insulators, Ltd.
    Inventors: Masashi Fukuyama, Yasunori Iwasaki, Akiyoshi Ide
  • Patent number: 7322751
    Abstract: The invention relates to an apparatus and method for orienting an optical waveguide in relation to an optical unit arranged in or on an optical module. The optical module has a reference geometry which defines a first axis of symmetry. An offset between the optical axis of the optical unit and the axis of symmetry of the reference geometry is determined. A coupling element such as a sleeve is provided that serves to receive an optical waveguide that is to be oriented in relation to the optical unit. The sleeve has a hole defined by an internal contour thereof that defines a second axis of symmetry. The coupling element is arranged in relation to the optical module in such a way that the second axis of symmetry coincides with the optical axis of the optical unit.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: January 29, 2008
    Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.
    Inventor: Hans Hurt
  • Patent number: 7316510
    Abstract: An optical axis adjusting method for adjusting a tilt angle of an optical axis in two regions optically coupled in a holding member includes the steps of: roughly adjusting the optical axis by irradiating a first region on the holding member with a laser beam; and finely adjusting the optical axis by irradiating a second region on the holding member with a laser beam. One of the two regions is set as a reference point. The first region is located closer to the reference point, while the second region is located further from the reference point.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: January 8, 2008
    Assignee: Eudyna Devices, Inc.
    Inventors: Haruyoshi Ono, Hidemitsu Sugawara
  • Patent number: 7294843
    Abstract: An optical alignment system for optimizing a gap distance between an optical fiber end and an optical device uses an atomic force present when the gap distance approaches optimal alignment according to changes in an oscillating fiber amplitude at a fiber resonance frequency. A driving force flexurally vibrates the fiber to produce an oscillation of the fiber at a resonance frequency that produces maximal oscillation. A measurement system detects the amplitude shift at the resonance frequency while adjusting the gap distance.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: November 13, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Tetsuo Ohara
  • Patent number: 7292756
    Abstract: Optical interface assemblies are provided. The optical interface assemblies include a first portion having a plurality of optical waveguides. The first portion is configured for mating engagement with an optical fiber connector. A second portion is mated to the first portion. The second portion is configured for mating engagement with an electronic substrate that includes an embedded waveguide assembly. The first and second portions are further configured so as to align the plurality of optical waveguides, at a first end of the first portion, with a plurality of corresponding waveguide cores of the embedded waveguide assembly. The first and second portions are further configured so as to align the plurality of optical waveguides, at a second end of the first portion, with a plurality of corresponding optical fibers in the optical fiber connector. Also provided are electronic assemblies and methods for coupling optical fibers with electronic substrate embedded waveguides.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: November 6, 2007
    Assignee: Rohm and Haas Electronics Materials LLC
    Inventors: Matthew L. Moynihan, Bruno M. Sicard, Carl J. Colangelo, John P. Cahalen, Brian D. Amos, Kevin S. Horgan, John J. Fisher, David W. Sherrer
  • Patent number: 7291830
    Abstract: A light pipe, a system and a method measure light attenuation from an optical fiber connected to a light source. The optical fiber transmits light from the light source to a light detector to determine a distance between the optical fiber and the light detector. The optical fiber attenuates light outwardly with respect to the fiber. A layer receives the optical fiber to reflect and/or to refract light transmitted by the optical fiber inwardly. A rod prevents light from attenuating from the optical fiber. A microprocessor may be connected to the light detector for determining the amount of light attenuated from the optical fiber. The microprocessor determines the distance between the light detector and the optical fiber based on the amount of light transmitted from the optical fiber to the light detector. The microprocessor transmits an output signal to a transducer for activating an arm to move an end of the layer inwardly or outwardly with respect to an end of the optical fiber.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: November 6, 2007
    Assignee: Phaedrus, LLC
    Inventor: Bradley Engstrand
  • Patent number: 7281862
    Abstract: An apparatus including a heat sink compatible with a rail, the heat sink including two engagement windows that align with a corresponding pair of rail engagement windows when the apparatus is positioned in the rail. A handle engaged with the heat sink, the handle to enable a retention position and a retraction position of the apparatus. A first latch and a second latch laterally opposed and positioned within a first cavity and a second cavity, respectively, of the heat sink.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: October 16, 2007
    Assignee: Intel Corporation
    Inventors: Joshua T. Oen, Daehwan D. Kim, Ching-Ling Meng
  • Patent number: 7280382
    Abstract: Optically-coupled memory systems are disclosed. In one embodiment, a system memory includes a carrier substrate, and a controller attached to the carrier substrate and operable to transmit and receive optical signals, and first and second memory modules. The module substrate of the first memory module has an aperture formed therein, the aperture being operable to provide an optical path for optical signals between the controller and an optical transmitter/receiver unit of the second memory module. Thus, the system memory provides the advantages of “free space” optical connection in a compact arrangement of memory modules. In an alternate embodiment, the first memory module includes a beam splitter attached to the module substrate proximate the aperture. In another embodiment, the first and second memory modules are staged on the carrier substrate to provide an unobstructed path for optical signals.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: October 9, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Terry R. Lee, Kevin J. Ryan
  • Patent number: 7280381
    Abstract: Optically-coupled memory systems are disclosed. In one embodiment, a system memory includes a carrier substrate, and a controller attached to the carrier substrate and operable to transmit and receive optical signals, and first and second memory modules. The module substrate of the first memory module has an aperture formed therein, the aperture being operable to provide an optical path for optical signals between the controller and an optical transmitter/receiver unit of the second memory module. Thus, the system memory provides the advantages of “free space” optical connection in a compact arrangement of memory modules. In an alternate embodiment, the first memory module includes a beam splitter attached to the module substrate proximate the aperture. In another embodiment, the first and second memory modules are staged on the carrier substrate to provide an unobstructed path for optical signals.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: October 9, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Terry R. Lee, Kevin J. Ryan
  • Patent number: 7263266
    Abstract: This invention is directed to a fiber attachment including a hot pad and solder glass that attaches an optical fiber to the hot pad. The attached is formed by positioning the optical fiber over the hot pad and aligning the optical fiber. The optical fiber is then raised and solder glass preforms are positioned on the hot pad. Heat is applied to the glass preforms such that they melt. Once the preforms are melted, the optical fiber is lowered into the molten solder glass. The current is then removed and the solder glass solidifies as it cools to form an attachment between the optical fiber and the hot pad.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: August 28, 2007
    Assignee: Picometrix, LLC
    Inventor: Steven L. Williamson
  • Patent number: 7254300
    Abstract: An optical module includes a semiconductor optical device, an optical fiber, a ferrule, and a mounting component. The optical fiber is optically coupled to the semiconductor optical device. The ferrule holds the optical fiber. The mounting component includes a first support groove for supporting the ferrule and a second support groove for supporting the optical fiber. The semiconductor optical device is mounted on the mounting component. The first and second support grooves are sequentially arranged in a direction of a predetermined axis. The second support groove has one end and the other end. The depth of the second support groove decreases from the one end toward the other end. With such a structure, the optical module allows the optical fiber to be positioned with high accuracy onto the mounting component.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: August 7, 2007
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Mitsuaki Nishie, Yoshiki Kuhara