Plural Fiber-to-fiber Connections Patents (Class 385/59)
  • Publication number: 20130223797
    Abstract: Provided is a multi-fiber connector and a method of providing a secure fiber network, where the multi-fiber connector includes a housing; a multi-position ferrule disposed within the housing, the multi-position ferrule including a plurality of fiber holes arranged in a predetermined pattern; and at least one fiber. Each of the plurality of fiber holes is configured to receive one of the at least one fiber and each fiber is selectively inserted within one of the plurality of fiber holes at a selected position among the plurality of fiber holes. Additionally, only a portion of the plurality of fiber holes are populated with the at least one fiber and a remaining portion of the plurality of fiber holes are not populated with fibers.
    Type: Application
    Filed: April 11, 2013
    Publication date: August 29, 2013
    Applicant: AFL Telecommunications LLC
    Inventor: AFL Telecommunications LLC
  • Patent number: 8517614
    Abstract: A fiber optic link connection system facilitates connection between two arrays of optical fibers. Two female-type connector plugs, each attached to a respective end of two fiber optic arrays, are inserted into the open ends of a connector guide sleeve. Two guide pins are captured by intrusions within the guide sleeve in order to mate with and align the two plugs. Guide capture pins and associated springs are disposed within the guide pin intrusions to capture the guide pins. Such an arrangement not only protects the guide pins from damage, but also promotes connector compatibility.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: August 27, 2013
    Inventor: Michael L. Wach
  • Publication number: 20130209037
    Abstract: An interconnect assembly includes an optical fiber cable, legs, connectors, and covers. The optical fiber cable includes a jacket and sub-units. The jacket has an interior defining a passage and the sub-units extend through the passage and include optical fibers extending lengthwise through the sub-units. The legs of the interconnect assembly extend from the passage on an end of the jacket, where the legs are continuations of or extensions from the sub-units such that the optical fibers further extend through the legs. The connectors are attached to the optical fibers on distal ends of the legs and the covers are attached to the connectors. The covers each include an end having a track for wrapping one or more of the legs over in order to package the legs and connectors, such as for placement of the legs and connectors within a pulling grip for installation of the interconnect assembly through a duct.
    Type: Application
    Filed: March 14, 2012
    Publication date: August 15, 2013
    Inventors: Terry L. Cooke, Christopher S. Houser, Ronald A. Leonard, James M. Wilson
  • Patent number: 8506173
    Abstract: There is provided a fiber optic receptacle and plug assembly adapted to provide electrical connectors for electrical conductors. The receptacle and plug define complimentary alignment and keying features for ensuring that the plug is mated with the receptacle in a predetermined orientation. An alignment sleeve is disposed within the plug for receiving a multi-fiber receptacle ferrule and a multi-fiber plug ferrule. The fiber optic receptacle and corresponding plug each include a biasing member assembly for urging the receptacle ferrule and the plug ferrule towards one another, wherein the biasing member assembly includes a spring, a spring centering cuff and a ferrule boot that operatively engage the rear of the receptacle ferrule and the plug ferrule, respectively, to substantially center a spring biasing force on the end face of the receptacle ferrule and the plug ferrule. The electrical connectors of the receptacle and plug are preferably provided separate from the biasing member assembly.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: August 13, 2013
    Assignee: Corning Cable Systems LLC
    Inventors: Christopher Paul Lewallen, James P. Luther, Thomas Theuerkorn
  • Publication number: 20130170796
    Abstract: An optical fiber coupler includes a male port and a female port. The male port includes a main body, the male transmission lens and the male receiving lens positioned on the main body, and a male optical wave guide assembly. The male base board includes at least one male optical wave guide. Each male optical wave guide includes a male first alignment portion and a male second alignment portion. The male first alignment portion is optically coupled with one male receiving lens; and a male second alignment portion has a greater width than that of the male first alignment portion. The structure of the female port is similar to the male port.
    Type: Application
    Filed: August 23, 2012
    Publication date: July 4, 2013
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: KAI-WEN WU
  • Publication number: 20130156377
    Abstract: Methods of reducing and/or avoiding fiber ordering during preparations of a multi-fiber, fiber optic cable to provide a connectorized multi-fiber, fiber optic cable system, and related fiber optic cables and assemblies are also disclosed. The embodiments disclosed herein allow for a section of a multi-fiber, fiber optic cable to be prepared to form two or more connectorized fiber optic cables as part of a multi-fiber cable system without requiring specific fiber ordering in the fiber optic connectors. The natural ordering of the optical fibers in the fiber optic cable is fixed in place in at least one section of the fiber optic cable before the optical fibers are cut to form adjacent fiber optic connectors in the cable system. Thus, the fiber ordering between adjacent fiber optic connectors in the cable system will be the same even though the fiber ordering of the optical fibers was random during cable preparations.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 20, 2013
    Inventors: Jeffery A. DeMeritt, Micah C. Isenhour, Dennis M. Knecht, James P. Luther, James S. Sutherland
  • Patent number: 8463091
    Abstract: This invention discloses methods to reconfigure highly scalable and modular automated optical cross connect switch devices comprised of large numbers of densely packed fiber strands suspended within a common volume. In particular, methods enabling programmable interconnection of large numbers of optical fibers (100's-1000's) are provided, whereby a two-dimensional input array of fiber optic connections is mapped in an ordered and rule-based fashion into a one-dimensional array. A particular algorithmic implementation for a system reconfigured by a three-axis robotic gripper as well as lateral translation of each row in the input port array is disclosed.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: June 11, 2013
    Assignee: Telescent Inc.
    Inventor: Anthony Stephen Kewitsch
  • Publication number: 20130142486
    Abstract: An optical fiber coupling assembly includes a first optical fiber connector, a second optical fiber connector, and a cable. The first optical fiber connector defines a number of first blind holes receiving first focus lenses, and first through holes respectively communicating with the first blind holes. The second optical fiber connector defines a number of second blind holes receiving second focus lenses, and second through holes respectively communicating with the second blind holes. The cable includes a number of optical fibers. Each optical fiber includes a first end and a second end, and the first end is received in a corresponding one of the first through holes and aligned with the a corresponding one of the first focus lenses, and the second end is received in a corresponding one of the second through holes and aligned with a corresponding one of the second focus lenses.
    Type: Application
    Filed: April 13, 2012
    Publication date: June 6, 2013
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: KAI-WEN WU
  • Publication number: 20130142485
    Abstract: An optical fiber coupling assembly includes a first optical fiber connector and a second optical fiber connector. The first optical fiber connector includes a first body having a first light incident surface, first optical lenses, first plugs, and second plugs. The first optical lenses, the first plugs, and the second plugs are formed on the first light incident surface. The first optical lenses are positioned between the first plugs, and the first plugs are positioned between the second plugs. The second plugs are longer than the first plugs. The second optical fiber connector includes a second body having a second light incident surface and second optical lenses formed on the second light incident surface. First engaging holes and second engaging holes are defined in the second light incident surface. The first plugs are inserted into the first engaging holes, and the second plugs are inserted into the second engaging holes.
    Type: Application
    Filed: December 26, 2011
    Publication date: June 6, 2013
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: KAI-WEN WU
  • Patent number: 8434948
    Abstract: An optical fiber connector 1 is provided with a mechanical splice section 3 for mechanically securing and connecting optical fibers 2 to each other. The mechanical splice section 3 includes a base plate 5 having a V-groove 4 for positioning the optical fibers 2 and a pressing plate 6 for pressing the optical fibers 2 against the base plate 5. A wedge inserting recessed section 8 is arranged at a boundary portion between the base plate 5 and pressing plate 6. The optical fiber connector 1 is provided with a wedge member 9 having a wedge section 13 adapted to be inserted into the wedge inserting recessed section 8 for opening the base plate 5 and pressing plate 6 from each other; a wedge insertion releasing member 10 for pressing the wedge member 9, so as to take the wedge section 13 out of the wedge inserting recessed section 8; and a housing 11 for covering the mechanical splice section 3, wedge member 9, and wedge insertion releasing member 10.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: May 7, 2013
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kenichiro Ohtsuka, Masahiro Hamada, Kouji Niikura, Daizou Nishioka
  • Patent number: 8425129
    Abstract: An optical couple connector includes a first main body and a second main body. A through hole is defined in the first main body. A blind hole and a lens are defined in the second main body. The diameter of the blind hole is less than that of the through hole. The through hole is coaxial with the blind hole and is used to hold an optical fiber. The lens couples to the optical fiber.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: April 23, 2013
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: I-Thun Lin
  • Patent number: 8425126
    Abstract: A multi-core optical fiber which has a plurality of core portions arranged separately from one another in a cross-section perpendicular to a longitudinal direction, and a cladding portion located around the core portions, the multi-core optical fiber comprises a cylindrical portion of which diameter is even, and a reverse-tapered portion gradually expanding toward at least one edge in the longitudinal direction, wherein a gap between each adjacent ones of the core portions in the reverse-tapered portion is greater than that in the cylindrical portion.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: April 23, 2013
    Assignee: Furukawa Electric Co., Ltd.
    Inventor: Katsunori Imamura
  • Patent number: 8422846
    Abstract: A fiber management device includes a first member having a floor, a first end, a second end and first and second sides, the first end including at least one holder for securing at least one optical fiber adapter to the first member, the second end including a frame holding a plurality of fiber optic connectors, the first side and second sides including first and second fiber guide structures. A first optical fiber connector is in the at least one holder, and includes a first plurality of optical fibers forming a first loop on the floor that contacts the first fiber guide structure and the second fiber guide structure. A second member includes a housing releasably connected to the first member and defining with the first member an enclosure for the first loop.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: April 16, 2013
    Inventors: Gil Ruiz, Thomas Crain, Gary F. Gibbs, Joseph C. Livingston, Aly Fahd
  • Patent number: 8417074
    Abstract: A telecommunications module includes a main housing with an optical component within an interior of the main housing and a fiber optic adapter block coupled to the main housing, the adapter block including a one-piece main body including a top wall and a bottom wall, the adapter block defining a plurality of openings extending from a front end to a rear end of the main body, each opening defining a separate adapter, each opening defining a longitudinal axis, the adapters being configured to receive connectorized cables extending from the optical component within the interior of the main housing, the adapter block including at least one guide rail extending generally between the top wall and the bottom wall of the main body, the guide rail configured for slidably mounting the fiber optic telecommunications module to a telecommunications device once the adapter block has been coupled to the main housing, wherein the main housing includes an integrally formed pivotable latching arm configured to pivot for select
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: April 9, 2013
    Assignee: ADC Telecommunications, Inc.
    Inventors: Ponharith Nhep, Kristofer Bolster, Timothy G. Badar
  • Patent number: 8403567
    Abstract: An optical fiber connector includes a female connector and a male connector. The female connector includes a first main body and a first lens portion. The first main includes at least one positioning slit and at least one recess defined in an inner surface of the first main body in the at least one positioning slit. The male connector is used for engagement with the female connector, and includes a second main body and a second lens portion for optically coupling with the first lens portion. The second main body includes at least one positioning post configured for insertion into the corresponding at least one positioning slit and at least one protrusion protruding from the at least one positioning post configured for insertion into the corresponding at least one recess.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: March 26, 2013
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Tai-Cherng Yu, Kun-Chan Wu, I-Thun Lin
  • Patent number: 8388235
    Abstract: A modular and scalable high optical fiber count connector assembly (800) is formed by engagement mating of a plug connector (500) to a receptacle connector (700). The plug connector (500) includes a plug shell unit (200) and a pin subassembly unit (400), which includes a plurality of small form factor engagement mate pin connectors (100). The plug connector (500) is formed by inserting the pin subassembly unit (400) into the plug shell unit's (200) hollow body (230). The receptacle connector (700) includes a receptacle shell unit (300) and a socket subassembly unit (600), which includes a plurality of small form factor engagement mate socket connectors (150). The receptacle connector (700) is formed by inserting the socket subassembly unit (600) into the receptacle shell unit (300) hollow body (330).
    Type: Grant
    Filed: July 24, 2011
    Date of Patent: March 5, 2013
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Herbert B. Volker, Martin S. Moran
  • Patent number: 8388236
    Abstract: An optical fiber connector assembly includes a female connector, a male connector, and a thin film filter. The female connector includes a first main body and a first lens portion. The first main body and the first lens portion are made of a same polymer material having a lower melting point and higher fluidity than polyether-imide. The male connector is used for insertion into the female connector and includes a second main body and a second lens portion for optically coupling with the first lens portion. The second main body and the second lens portion are made of a same polymer material having a lower melting point and higher fluidity than polyether-imide. The thin film filter is formed on each of the first and second lens portions. A related optical fiber connector is also disclosed.
    Type: Grant
    Filed: November 25, 2010
    Date of Patent: March 5, 2013
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Kun-Chan Wu
  • Patent number: 8382382
    Abstract: A fiber optic adapter is disclosed. The fiber optic adapter includes a main body configured to receive a first fiber optic connector through a first end and a second fiber optic connector through a second end for mating with the first fiber optic connector. The adapter includes a ferrule alignment structure located within an axial cavity of the main body, the ferrule alignment structure including a sleeve mount and a ferrule sleeve, the sleeve mount including an axial bore and at least one latching hook extending from a center portion of the sleeve mount toward the first end of the main body and at least one latching hook extending from the center portion toward the second end of the main body, the latching hooks configured to flex for releasably latching the first and second fiber optic connectors to the fiber optic adapter.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: February 26, 2013
    Assignee: ADC Telecommunications, Inc.
    Inventor: Keith Nelson
  • Publication number: 20130044979
    Abstract: An optical cable including connectors includes a plurality of waveguide layers each including a plurality of optical channels each having a first end and a second end. First and second connectors each include a plurality of electrically conductive pins, and each of the plurality of optical channels of each of the waveguides, at their first and second ends, are connected to a specified pin on each of the first and second connectors, respectively. A first optical channel connection pattern on the first connector, and a second optical channel connection pattern on the second connector. The first optical channel connection pattern on the first connector is a different pattern than the second optical channel connection pattern on the second connector in relation to a connection hole pattern which is the same for both the first and second connectors.
    Type: Application
    Filed: October 20, 2011
    Publication date: February 21, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Russell A. Budd, Frank R. Libsch
  • Patent number: 8360659
    Abstract: The invention relates to an optical pin-and-socket connector for the detachable connection of a plurality of optical cores (115) having an insert (112, 112?), in which the cores (115) are inserted on a first side, the cores (115) ending in said connector with the optical fibers (119, 120) thereof, and said connector having an expansion device (117, 118) on a second side, on which the beams exit the fibers (119, 120) in an expanded manner. A simplification of the assembly and installation is achieved in that the insert (112, 112?) comprises two separate partial elements (113, 117, 118) that can be assembled, one of which is configured as an expansion device (117, 118) and the other is configured as a retaining block (113) for receiving the ends of the optical cores (115).
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: January 29, 2013
    Assignee: Huber+Suhner AG
    Inventors: Roger Krähenbühl, Thomas Ammer
  • Patent number: 8348516
    Abstract: A connector assembly has a cable assembly, plug assembly and a socket assembly. The socket assembly is a female member which is received within an opening at the front face of a panel. The plug assembly is a male member which then engages the socket at the front face of the panel. The cable assembly connects the cables carrying optical fibers to the plug assembly. As the socket assembly receives the plug assembly, doors on the respective housings open and ferrule carriers carried by the socket and plug assemblies mate. The plug assembly has a movable front end which permits the fibers to move in both horizontal and vertical directions.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: January 8, 2013
    Assignee: Amphenol Corporation
    Inventor: Richard F. Roth
  • Publication number: 20120328244
    Abstract: An optical connecting member realizes an optical connecting between a multi-core fiber and a plurality of single-core fibers by a waveguide part which connects a first end face and a second end face. With the optical connecting member, a connected end which is connected to the first end face is a straight-line portion that is orthogonal to the first end face in each of the plurality of waveguide parts. In addition, a diverged end which is diverged to the second end face is a straight-line portion that is orthogonal to the second end face. Consequently, light that has passed through the waveguide parts is emitted from the first end face and the second end face substantially perpendicularly to the faces, thereby enabling optical connecting loss to be favorably inhibited.
    Type: Application
    Filed: June 14, 2012
    Publication date: December 27, 2012
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Dai Sasaki, Tomomi Sano, Akira Inoue
  • Publication number: 20120321252
    Abstract: In an optical connector, end faces of a pair of ferrules that hold multiple optical fibers are positioned with two guide pins and butted against each other to connect the optical fibers in the pair of ferrules. The optical connector is provided with an urging member for pushing the end faces against each other. The end faces are ground at an angle. The gap between the guide pins and guide holes, which open at the end faces and into which the guide pins are fitted, is larger than 0.004 mm and smaller than or equal to 0.008 mm. Powder caused by the friction generated when the guide pins are inserted and fitted into the guide holes is greatly reduced. Connection loss does not increase even when frequent connection and disconnection are performed, and cleaning the connector becomes unnecessary.
    Type: Application
    Filed: March 9, 2012
    Publication date: December 20, 2012
    Applicants: Hitachi Cable, Ltd., Japan Aviation Electronics Industry, Limited
    Inventors: Yuichi Koreeda, Naoki Katagiyama, Yoshikazu Namekawa, Yoshinori Kurosawa, Seiji Kojima
  • Patent number: 8322933
    Abstract: Information processing equipment includes a photoelectric conversion module disposed on a circuit substrate, a first optical connector connected to the photoelectric conversion module through a plurality of first optical fibers and disposed to an edge portion of the circuit substrate, and a second optical connector disposed on an optical backplane and optically connected to the first optical connector. The disposing direction of the optical fibers in the photoelectric conversion module is in nonparallel with the main surface of the circuit substrate and the disposing direction of the optical fibers in the first optical connector and the disposing direction of the optical fibers in the second optical connector are in nonparallel with the main surface of the circuit substrate.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: December 4, 2012
    Assignee: NEC Corporation
    Inventor: Junichi Sasaki
  • Publication number: 20120301073
    Abstract: Integrated silicon photonic active optical cable assemblies (ACOAs), as well as sub-assemblies and components for AOCAs, are disclosed. One component is a multifiber ferrule configured to support multiple optical fibers in a planar array. The multifiber ferrule is combined with a flat top to form a ferrule sub-assembly. Embodiments of a unitary fiber guide member that combines the features of the multifiber ferrule and the flat top is also disclosed. The ferrule sub-assembly or the fiber guide member is combined with a photonic light circuit (PLC) silicon substrate with transmitter and receiver units to form a PLC assembly. The PLC assembly is combined with a printed circuit board and an electrical connector to form an ACOA. An extendable cable assembly that utilizes at least one ACOA is also described.
    Type: Application
    Filed: April 5, 2012
    Publication date: November 29, 2012
    Inventors: Jeffery A. DeMeritt, Richard R. Grzybowski, Klaus Hartkorn, Brewster R. Hemenway, JR., Micah Colen Isenhour, Christopher Paul Lewallen, James Phillip Luther, James S. Sutherland
  • Publication number: 20120288233
    Abstract: Fiber optic assemblies and systems for high-speed data-rate optical transport systems are disclosed that allow for optically interconnecting active assemblies to a trunk cable in a polarization-preserving manner. The fiber optic assembly includes at least first and second multifiber connectors each having respective pluralities of first and second ports that define respective pluralities of at least first and second groups of at least two ports each. The first and second multifiber connectors are capable of being disposed so that the at least first and second groups of ports are located on respective termination sides of each ferrule. The fiber optic assembly also has a plurality of optical fibers that connect the first and second ports according to a pairings method that maintains polarity between transmit and receive ports of respective active assemblies. At least one of the first and second groups are optically connected without flipping the fibers.
    Type: Application
    Filed: July 26, 2012
    Publication date: November 15, 2012
    Inventors: Ray S. Barnes, John D. Coleman, Alan W. Ugolini
  • Publication number: 20120251051
    Abstract: A tool-less grouping apparatus has a main body with a top portion and a bottom portion. Dividing members extending between the top and bottom portions make openings for fiber optic connectors. Forward facing surfaces may be on both the top and bottom portions to engage the fiber optic connectors. The portions also have cut-outs that can engage the fiber optic connectors to assist in removing the fiber optic connectors from adapters.
    Type: Application
    Filed: March 1, 2012
    Publication date: October 4, 2012
    Inventors: Jillcha F. Wakjira, Alan Benner, Russell Granger, Darrell R. Childers
  • Patent number: 8280205
    Abstract: The invention pertains to an optical connector assembly having an alignment mechanism for coupling two single-lens, multi-fiber optical connectors together. Particularly, each connector comprising a single lens through which the light from multiple fibers is expanded/focused for coupling to corresponding fibers in a mating connector. In one aspect of the invention, the alignment mechanism includes mating features extending from the fronts of the lenses having substantially longitudinal surfaces that meet and contact each other when the two connectors are coupled together in only one or a limited number of rotational orientations relative to each other to as to properly rotationally align the multiple fibers in the two mating connectors. This mechanism also helps align the two connectors with the optical axes of their lenses parallel to each other.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: October 2, 2012
    Assignee: Tyco Electronics Corporation
    Inventors: David Donald Erdman, Michael Aaron Kadar-Kallen
  • Publication number: 20120230636
    Abstract: A connector device (203) for connecting a first fibre optic cable (1;101) to a plurality of second fibre optic cables (9?;220).
    Type: Application
    Filed: July 13, 2010
    Publication date: September 13, 2012
    Inventors: Nicholas Blockley, Asher Raven, Alan Keizer
  • Patent number: 8251591
    Abstract: Fiber optic assemblies and systems for high-speed data-rate optical transport systems are disclosed that allow for optically interconnecting active assemblies to a trunk cable in a polarization-preserving manner. The fiber optic assembly includes at least first and second multifiber connectors each having respective pluralities of first and second ports that define respective pluralities of at least first and second groups of at least two ports each. The first and second multifiber connectors are capable of being disposed so that the at least first and second groups of ports are located on respective termination sides of each ferrule. The fiber optic assembly also has a plurality of optical fibers that connect the first and second ports according to a pairings method that maintains polarity between transmit and receive ports of respective active assemblies.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: August 28, 2012
    Assignee: Corning Cable Systems
    Inventors: Ray S. Barnes, John D. Coleman, Alan W. Ugolini
  • Patent number: 8254741
    Abstract: [Problem] To provide an optical cable connecting closure and optical interconnection system which can easily respond to changes in required connection functions if any. [Solving Means] An optical cable connecting closure 118 has a case 121, while a plurality of connecting modules 123 are arranged (stored) so as to be erected with respect to the bottom face of a closure main body 119 along the width direction in a module storing section 122 of the case 121. The connecting module 123 has a rectangular parallelepiped board-like module main body 127, while a plurality of MT connectors 128, 129 are attached in a vertical row to one end face of the module main body 127. In the module main body 127, an optical connecting section 130 for connecting the MT connectors 128, 129 to each other is arranged. The module storing section 122 can store a different kind of connecting module having a connecting configuration (function) different from that of the connecting module 123.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: August 28, 2012
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Tsuyoshi Imaizumi, Kenichiro Ohtsuka, Akio Kishi, Shinya Watanabe, Akira Murozono, Tetsuya Oosugi
  • Patent number: 8226305
    Abstract: A fiber optic connector release mechanism for releasing a transceiver module in a cage permanently mounted on a PCB is disclosed. The release mechanism includes a bail rotating a U-shaped flange through a two stage travel path to urge the bail forward in a slide path on the transceiver module. The release mechanism includes a boss disposed on one of the bail and the arm assembly and a dimple disposed on another of the bail and the arm assembly to secure the bail in a locked position. As the bail moves forward from the locked position, wedge elements at the end of arms extending rearward may contact locking tabs on the cage, forcing the locking tabs outward. As the locking tabs are forced outward, the shoulders of the transceiver module are released, and the transceiver module is free to slide out of the cage.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: July 24, 2012
    Assignee: Fourte Design & Development, LLC.
    Inventors: Raja Maruthu Thirugnanam, Gioni Bianchini, Rob Golden
  • Publication number: 20120170892
    Abstract: An optical fiber connector includes a connector body, a number of optical lenses, and two receiving holes. The connector body includes a first end face. The optical lenses are arranged at the first end face. The receiving holes are defined in the first end face. The optical lenses are located between the receiving holes. The connector body includes a partially conical inner side surface, a first flat inner side surface, and a second flat inner side surface in each receiving hole. The partially conical inner side surface, the first flat inner side surface, and the second flat inner side surface adjoins each other.
    Type: Application
    Filed: May 23, 2011
    Publication date: July 5, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: I-THUN LIN
  • Publication number: 20120170893
    Abstract: A fiber optic splice housing and integral dry mate connector system. In a described embodiment, a fiber optic connection system includes optical fiber sections in respective conduit sections. Each of the conduit sections is received in the housing assembly. An optical connection between the optical fiber sections is positioned within the housing assembly.
    Type: Application
    Filed: March 13, 2012
    Publication date: July 5, 2012
    Applicant: WELLDYNAMICS, B.V.
    Inventors: Paul D. RINGGENBERG, NEAL G. SKINNER, John L. MAIDA, JR., David O. JOHNSON
  • Patent number: 8206043
    Abstract: A fiber optic connector release mechanism is disclosed. The mechanism may be used to release a transceiver module housed in a cage that is permanently mounted on a printed circuit board. The release mechanism may include a cam mounted bail that rotates a U-shaped flange through a two stage travel path to urge the bail forward in a slide path on the transceiver module. As the bail begins to move forward, wedge elements at the end of a pair of slide arms extending rearward from the bail may contact locking tabs on the cage, forcing the locking tabs outward. As the locking tabs are forced outward, the shoulders of the transceiver module are released, and the transceiver module is free to slide out of the cage as the operator pulls on the bail.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: June 26, 2012
    Assignee: Fourte Design & Development, LLC
    Inventors: Raja Maruthu Thirugnanam, Rob Golden, Gioni Bianchini
  • Publication number: 20120099820
    Abstract: There is described a method for fabricating an optical connector comprising: embedding each one of a plurality of first optical waveguides in a corresponding one of a plurality of first grooves of a first substrate; embedding each one of a plurality of second optical waveguides in a corresponding one of a plurality of second grooves of a second substrate; abutting the plurality of first optical waveguides and the plurality of second optical waveguides against walls of the plurality of first grooves and the plurality of second grooves, respectively, by securing a spacer plate between the first substrate and the second substrate so that the first optical waveguides and the second optical waveguides extend along a same axis, thereby obtaining an optical assembly having a front end substantially perpendicular to the axis; and beveling the front end of the optical assembly, thereby obtaining a beveled end for the first optical waveguides and a beveled end for the second optical waveguides offset along the axis for
    Type: Application
    Filed: March 22, 2010
    Publication date: April 26, 2012
    Inventors: David R. Rolston, Rajiv Iyer, Shao-Wei Fu, Nicolas Belanger
  • Publication number: 20120093465
    Abstract: Disclosed are multifiber ferrule assemblies and methods for manufacturing the same. In one embodiment, a finished multifiber ferrule can be provided with a front end having a first front surface that extends beyond a second front surface, thereby inhibiting interaction with a laser beam during processing. A plurality of optical fibers can be fixed within respective optical fiber bores and extend from respective optical fiber bore openings to a position beyond the first front surface. The plurality of optical fibers can be processed by cutting and polishing with a laser beam for providing each optical fiber with a final polished end surface located beyond the first front surface. In further embodiments, an offset structure is positioned with respect to a finished multifiber ferrule after cutting and polishing the optical fibers.
    Type: Application
    Filed: December 22, 2011
    Publication date: April 19, 2012
    Inventors: Jeffrey D. Danley, Christopher P. Lewallen, James P. Luther, Joel C. Rosson, David A. Thompson
  • Patent number: 8152384
    Abstract: Push-pull fiber optic connectors and cable assemblies having a latch that is actuated by a cam surface are disclosed. The fiber optic connectors include a ferrule and a housing having the latch. A shroud fits over a portion of the housing and allows the craft to grab the shroud and push the shroud and hence the fiber optic connector into a suitable adapter or the like. Likewise, the craft can grab the shroud and pull on the same to remove the fiber optic connector out of the adapter or the like. The cam surface is disposed on a decoupling member, wherein the decoupling member is attached to the shroud so the components can move together. Methods of making the push-pull fiber optic connector are also disclosed.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: April 10, 2012
    Assignee: Corning Cable Systems LLC
    Inventors: Michael de Jong, Paul X. Devereaux, Ashley W. Jones, Ronald L. Mudd
  • Patent number: 8152386
    Abstract: A fiber optic assembly comprising an adapter assembly defining an internal cavity, a first end for a receiving a first fiber optic connector, and a second end for receiving a second fiber optic connector, wherein the first and the second fiber optic connectors are dissimilar. A fiber optic connection comprising a first fiber optic connector comprising a connector housing, a first multi-fiber ferrule, and a clearance about an end face of the first multi-fiber ferrule for clearing a ferrule surround during connector mating, and a second connector that is a FOCIS 5 compliant MTP connector.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: April 10, 2012
    Assignee: Corning Cable Systems LLC
    Inventors: James Phillip Luther, Martin Eugene Norris, Thomas Theuerkorn
  • Publication number: 20120033916
    Abstract: A submarine optical connector (1), comprising: a first support element (11) for supporting a first optical fibre, said first support element including at least one alignment pin (31, 31?), a second support element (12) for supporting a second optical fibre, said second support element including at least one through hole intended to receive respectively said at least one alignment pin to guide the first and second support elements towards a contact position in which the first and second fibres are connected, and sealing means (41, 42, 43) to protect the first and second fibres from the external environment at least when the first and second support elements are in the contact position.
    Type: Application
    Filed: August 2, 2011
    Publication date: February 9, 2012
    Applicant: CARRIER KHEOPS BAC
    Inventors: Cedric LAGATHU, Christophe PREL
  • Patent number: 8104973
    Abstract: An adapter for holding two multi-fiber ferrules in positions to mate with one another includes a main body, a opening extending through the main body configured to receive and optically and mechanically mate the two multi-fiber ferrules. Engagement members, which preferably rotate about an axis transverse to the opening, is disposed adjacent the opening on each side of the adapter to engage and hold the multi-fiber ferrules in the adapter.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: January 31, 2012
    Assignee: US Conec, Ltd.
    Inventors: Joseph P Howard, Darrell P Childers, Russell J. Granger, Myron W Yount
  • Patent number: 8100588
    Abstract: A small form factor pluggable (SFP) optical transceiver module and method for performing optical communications are provided. The SFP optical transceiver module has a housing to which a duplex receptacle is secured. The duplex receptacle has a C-shaped opening, the upper and lower portions of which are defined by upper and lower flexible retaining elements for receiving and retaining a duplex optical connector therein. An electrical assembly of the module is secured within the transceiver module housing. The electrical assembly comprises a PCB, the back end of which is configured as a plug end for removably plugging the PCB into a receptacle of an external communications management system.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: January 24, 2012
    Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.
    Inventors: Tom Sheau Tung Wong, Adrianus Van Haasteren, Tze Wei Lim
  • Patent number: 8070366
    Abstract: An optical fiber connector and a method of forming an optical fiber connector are described where the optical fiber connector has low eccentricity tolerance at each end of the connector. Optical interconnection can be made at both ends of the connector, with the low eccentricity tolerance at each end providing improved light transmission at each interconnection. The connector is formed by using two commercially available, off-the-shelf connector members. Each connector member has a first end with a low eccentricity tolerance and a second end that allows for a fiber optic cable termination. The two connectors are connected together back-to-back, so that the second ends face each other and the first ends are disposed at opposite ends of the connector. The size of the connector can also be easily adjusted to make it shorter or longer.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: December 6, 2011
    Assignee: Lockheed Martin Corporation
    Inventors: Kevin J. Thorson, Roger J. Karnopp, Gregory M. Drexler
  • Patent number: 8038354
    Abstract: A multi-channel fiber optic connector includes a first connector housing and a mating second connector housing. The first connector housing includes a plurality of abutting first termini and a first guidance feature amongst the plurality of abutting first termini to form a first grouping. A circular containment sleeve surrounds the first grouping. The second connector housing includes a plurality of abutting second termini and a second guidance feature amongst the plurality of abutting second termini to form a second grouping. When the first and second connector housings are mated, the first guidance feature cooperates with the second guidance feature, and the plurality of abutting second termini enter into the containment sleeve to assume an end-to-end alignment with the plurality of abutting first termini.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: October 18, 2011
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Jeffrey D. Nielson, Bradley Billman
  • Publication number: 20110249942
    Abstract: An MPO connector adapter to connect a first female MPO connector to a second female MPO connector includes a housing. An adapter ferrule is retained within the housing. First and second alignment pin sections extend from a first face of the adapter ferrule to mate with guide holes of the first female MPO connector. Third and fourth alignment pin sections extend from an opposite face of the adapter ferrule to mate with guide holes of the second female MPO connector. Optical fibers within the adapter ferrule couple optical signals from the first female MPO connector to the second female MPO connector.
    Type: Application
    Filed: April 13, 2011
    Publication date: October 13, 2011
    Inventor: Joseph C. Livingston
  • Publication number: 20110249943
    Abstract: A genderless fiber optic connection system includes an MPO cable or cord having at least one genderless MPO connector disposed at one end. The genderless MPO connector includes a housing and a first genderless MPO ferrule attached therein. A mating, front face of the MPO ferrule includes an alignment pin extending therefrom and an alignment hole formed into the front face. Fiber ends are located in one or more rows between the alignment pin and the alignment hole. The connection system may also include a genderless MPO port having a complementary alignment pin, alignment hole, and fiber ends for mating with the genderless MPO connector.
    Type: Application
    Filed: April 13, 2011
    Publication date: October 13, 2011
    Inventors: Richard L. Case, Joseph C. Livingston
  • Patent number: 8009959
    Abstract: Optical interconnection methods for high-speed data-rate optical transport systems are disclosed that optically interconnect active assemblies to a fiber optic cable in a polarization-preserving manner. The methods include defining active-assembly-wise connector ports that connect to active assembly transmit and receive ports, and defining or establishing a pairings method between the active-assembly-wise connector ports. In a first optical interconnection assembly, an active-assembly-wise port is optically connected to a cable-wise port. In the second optical interconnection assembly, the cable-wise port that corresponds to the connected cable-wise port in the first optical interconnection assembly is optically connected to a select active-assembly-wise port as defined by the pairings method. The optical connection process is then repeated from the second to the first optical interconnection assembly. The optical interconnection acts are repeated until all of the active-assembly-wise ports are connected.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: August 30, 2011
    Assignee: Corning Cable Systems LLC
    Inventors: Ray S. Barnes, John D. Coleman, Alan W. Ugolini
  • Publication number: 20110176776
    Abstract: A multi-core optical fiber which has a plurality of core portions arranged separately from one another in a cross-section perpendicular to a longitudinal direction, and a cladding portion located around the core portions, the multi-core optical fiber comprises a cylindrical portion of which diameter is even, and a reverse-tapered portion gradually expanding toward at least one edge in the longitudinal direction, wherein a gap between each adjacent ones of the core portions in the reverse-tapered portion is greater than that in the cylindrical portion.
    Type: Application
    Filed: December 14, 2010
    Publication date: July 21, 2011
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventor: Katsunori IMAMURA
  • Publication number: 20110150395
    Abstract: Disclosed is a method of severing a fiber length projecting out of the end face of a plurality of ferrules. The ferrules are mounted in a polishing fixture. Image processing establishes the fiber cleaving plane. Relative movement between the laser beam and the ferrule severs the fiber protruding out of the ferrule end-face. Excess epoxy that may be present on the ferrule end-face is removed concurrently with the fiber severing process. The method includes cleaning and inspection of ferrules.
    Type: Application
    Filed: September 11, 2005
    Publication date: June 23, 2011
    Inventors: Serge Steinblatt, Ori Sarfaty, Rami Gazit, Ofer Bendet, Benjamin Karov, Yaron Gold, Daniel Hachnochi
  • Publication number: 20110129186
    Abstract: A fiber optic module assembly that may be pulled from a first location to a second location by a pulling means, the module assembly defining a pulling feature. The assembly may further be installed directly into a mounting structure for use as a patch panel. The fiber optic module assembly may be attached in a vertical orientation, facilitated by an articulated strain relief boot that pivots and rotates for cable management, which reduces the vertical footprint of the fiber optic module assembly. Embodiments of the fiber optic module assembly may be connected to the rear or side of a mounting structure for optical connection to pigtailed modules. The fiber optic module assembly may have a modular connector interface for mating dissimilar fiber optic connector assemblies.
    Type: Application
    Filed: November 15, 2010
    Publication date: June 2, 2011
    Inventors: C. Paul Lewallen, James P. Luther, Stuart R. Melton, Martin E. Norris, Thomas Theuerkorn