With Housing Patents (Class 385/92)
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Publication number: 20110222822Abstract: An optical transceiver that provides an inner metal cover in addition to a metal cover and a frame is disclosed. The inner cover includes a ceiling, a front skirt bent downward at a front edge of the ceiling, sides bent downward at both side edges of the ceiling, and a pair of arms extending rearward from respective side ends of the ceiling. The ceiling makes an obtuse angle with respect to the front skirt when the arms are not assembled with the frame, and shapes in convex protruding outward when the metal cover is not assembled with frame and. Assembling the inner cover and the metal cover with the frame, the inner cover comes in securely contact with the metal cover.Type: ApplicationFiled: March 11, 2011Publication date: September 15, 2011Applicant: SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC.Inventors: Satoshi YOSHIKAWA, Yuuichi KITAJIMA
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Patent number: 8019226Abstract: An optical transceiver module is provided that has a pivoting bail latching mechanism that is extremely stiff and locks via a cam locking configuration rather than relying on spring-loading forces to bias the latching mechanism to and maintain the latching mechanism in a desired position. The stiffness of the pivoting bail latching mechanism provided by the cam locking configuration better ensures that forces exerted the transceiver module will not cause the transceiver module to come out of the cage while latched.Type: GrantFiled: February 2, 2008Date of Patent: September 13, 2011Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.Inventor: Laurence R. McColloch
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Publication number: 20110217009Abstract: A system for connecting optical modules in an optical network may comprise a printed circuit board, two cages, and two connectors. The printed circuit board may house electronic circuitry and a plurality of electronic components. The printed circuit board may have a component side and a solder side. The two cages may be mounted back-to-back on opposite sides of the printed circuit board, each cage having a connector end and an I/O end. The two connectors may be mounted back-to-back on opposite sides of the printed circuit board. Each of the two cages may be configured to guide an optical module into the respective connector. Each of the two cages may be mounted at an angle from the respective surface of the printed circuit board such that the respective I/O ends of the two cages are farther apart than the respective connector ends of the two cages.Type: ApplicationFiled: March 4, 2010Publication date: September 8, 2011Applicant: Fujitsu Network Communications, Inc.Inventors: Gary Richard Burrell, Brian O'Donnell
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Patent number: 8014680Abstract: An optical transceiver which can effectively reduce optical output jitter when an error is made during designing and manufacturing of a printed circuit board (PCB), and a method of controlling optical output jitter using the optical transceiver are provided. The optical transceiver includes a transmitter unit including an equalizing (EQ) filter which can reduce jitter of a high speed electric signal; a control circuit which controls the EQ filter; a receiver unit which receives an optical signal; and a micro-controller which controls the transmitter unit and the receiver unit.Type: GrantFiled: November 5, 2007Date of Patent: September 6, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Joon Ki Lee, Jyung Chan Lee, Kwangjoon Kim
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Patent number: 8002478Abstract: An optical receptacle that enhances the optical coupling tolerance is disclosed. The optical receptacle of the invention provides, in stead of the coupling fiber installed in a conventional optical receptacle, a glass member with a diameter substantially equal to the diameter of the external fiber. The glass member, which is held by the support, provides a convex surface that abuts against the top of the external ferrule and another surface inclined with the optical axis to prevent the light reflected thereat from returning the optical device. The glass member has a substantially homogeneous distribution in the refractive index thereof; accordingly, the fluctuation in the optical coupling with the external ferrule may be reduced.Type: GrantFiled: August 25, 2009Date of Patent: August 23, 2011Assignee: Sumitomo Electric Industries, Ltd.Inventors: Yasunori Michitsuji, Hiromi Nakanishi, Kenji Hirayama
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Patent number: 8000567Abstract: An optical semiconductor module including a base having installed on an optical fiber and an optical semiconductor element, and a package which houses the base on a bottom thereof and has a first side wall with an optical section through which the optical fiber is led and a second side wall facing the first side wall, where the base is cut off to form a curved surface with respect to the bottom at a lower corner on a side of the base facing the second side wall of the housing, and a ratio of r/t is from 0.4 to 1.0, where t is a thickness of the base, and r is a curvature radius of the curved surface.Type: GrantFiled: April 16, 2010Date of Patent: August 16, 2011Assignee: The Furukawa Electric Co., Ltd.Inventors: Jun Miyokawa, Takashi Koseki, Toru Fukushima
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Publication number: 20110194824Abstract: A cable assembly (100) includes an insulative housing (2) defining a mounting cavity (221); an optical module (5) accommodated in the mounting cavity and capable of moving therein along a front-to-back direction; at least one fiber (6) coupled to the optical module; and two elastomeric members (9) integrally formed with the optical module and rearwardly extending therefrom to press onto the insulative housing.Type: ApplicationFiled: February 8, 2010Publication date: August 11, 2011Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: HOWARD WALLACE ANDREWS
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Publication number: 20110194823Abstract: An cable assembly includes an insulative housing (1) having a cavity (104) and a depression (105) respectively located in an upper side and a lower side of a front segment thereof; a plurality of terminals (212, 222) received in the insulative housing, with contacting portions thereof accommodated in the cavity; an optical module (8) accommodated in the depression, said optical module having a seat and a number of lenses supported by the seat; and a cable (6) having a plurality of wires (61) and fibers (65) connected to the terminals and the lenses, respectively.Type: ApplicationFiled: January 27, 2011Publication date: August 11, 2011Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: JERRY WU
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Publication number: 20110194822Abstract: A cable assembly (100) includes an insulative housing (2) defining a mounting cavity (221); an optical module (5) accommodated in the mounting cavity and capable of moving therein along a front-to-back direction; at least one fiber (6) coupled to the optical module; and a one-piece resilient member (91) disposed in the mounting cavity and arranged behind the optical module, the resilient member (91) having a left resilient portion (911A) and a right resilient portion (911B) spaced apart from each other along a transversal direction to bias the optical module.Type: ApplicationFiled: February 8, 2010Publication date: August 11, 2011Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: TOD M. HARLAN, TERRANCE F. LITTLE
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Patent number: 7993064Abstract: A high temperature optoelectronic device package includes a substrate, an optoelectronic die situated on an upper surface of the substrate, a seal surrounding the optoelectronic die and situated on the upper surface of the substrate and a housing disposed on the seal having a ferrule-seating portion. The housing is disposed on the seal such that a fiber optic center of the ferrule-seating portion is aligned with an active portion of the optoelectronic die. The optoelectronic die is in operative communication with electronic traces of the substrate.Type: GrantFiled: April 1, 2008Date of Patent: August 9, 2011Assignee: General Electric CompanyInventors: David Mulford Shaddock, Christopher James Kapusta, Glen Peter Koste
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Patent number: 7993063Abstract: The present invention is directed toward a device for protecting an adapter from contamination, damage or misuse. The device includes a front member having an opening for receiving a removal tool. The device also includes cover members having a front portion and a back portion. The front member of the device interconnects the front portions of the cover members. The front portion of each cover member includes a sealing member for sealing an opening in the adapter when the cover member is installed within the adapter. The back portion of each cover member includes an arm extending upwardly therefrom for engaging the adapter to secure the device within the adapter.Type: GrantFiled: March 16, 2009Date of Patent: August 9, 2011Assignee: Panduit Corp.Inventor: Jason O. Hackett
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Patent number: 7988369Abstract: A package comprises a substrate (101, 401) with a longitudinal direction and a lateral direction perpendicular thereto. The substrate (101, 401) has a recess (103, 403) formed in a first surface (102, 402) and the recess (103, 403) extends in the longitudinal direction of the substrate (101, 401), said recess (103, 403) having an inner surface. The inner surface of the recess (103, 403) comprises at least a first set of conductive areas. The first set comprises at least a first area (106, 406) and a second area (107, 407) being provided with a conductive layer, said first area (106, 406) and said second area (107, 407) being mutually spaced in the lateral direction. The package additionally comprises a cap (151, 251, 351, 451.) with a first surface (152, 252, 352, 452) for mounting on top of said first surface (102, 402) of said substrate (101, 401), the cap (151, 251, 351, 451) and the recess (103, 403) of the substrate (101, 401) defining an elongated channel in the longitudinal direction.Type: GrantFiled: January 5, 2007Date of Patent: August 2, 2011Assignee: Danmarks Tekniske UniversitetInventor: Thomas Tanggaard Alkeskjold
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Patent number: 7991260Abstract: A light-diffusing safety cap for use with a light cable that couples an endoscope to a high intensity light source. The light-diffusing safety cap can be detachably or releasably coupled, in lieu of the endoscope, to the light cable, such that when the high intensity light source emits a high intensity light and the endoscope is not connected to the light cable, the light-diffusing safety cap reduces the intensity of the high intensity light emitted to the environment and provides an indication that the high intensity light source is activated when the endoscope is not connected to the light cable.Type: GrantFiled: October 18, 2010Date of Patent: August 2, 2011Assignee: SensorMed, Inc.Inventors: Michael C. Doody, William T. Milam
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Publication number: 20110176781Abstract: An optical connector comprising a housing (11) including a bottom wall, a plurality of side walls each of which stands from the bottom wall, and an opening defined by the side walls; a metal lead (21) mounted on the bottom wall; a photoelectric conversion element (23) mounted on the metal lead (21); a resin case (26) covering the photoelectric conversion element (23); a lens (25) corresponding to the photoelectric conversion element (23) and provided on the resin case (26); and an electromagnetic shield (12) provided on the resin case (26) and including a first through hole (12e) from which the lens (25) is exposed.Type: ApplicationFiled: July 30, 2009Publication date: July 21, 2011Inventor: Wataru Matsuo
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Publication number: 20110176778Abstract: An optoelectronic cable assembly (100) includes an insulative housing (2), a set of contacts (3) retained in the housing, an optical module (5) movably retained to the housing and at least one fiber optic coupled (6) to the optical module. The housing defines a base portion (21) and an extending portion (22) extending forwards from the base portion. The set of contacts each defines a retention portion (31) retained in the base portion, an elastic arm (32) running through the extending portion and exposed beyond the extending portion and a tail portion (33) extending out of the base portion. The optical module is disposed in front of the extending portion to receive the elastic arms therein, and is capable of moving along a front-to-back direction with regard to the extending portion. The optical module is moveable with regard to the extending portion, which can be accurately aligned with.Type: ApplicationFiled: January 15, 2010Publication date: July 21, 2011Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Terrance F. LITTLE, Tod M. HARLAN
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Publication number: 20110170832Abstract: An optical transceiver module that is capable of being inserted into and removed from a cage includes a housing that houses a photoelectric conversion element, the housing having a guiding section formed along a front-rear direction, an operating lever that has an operating section and a lever-side contact section, the operating lever being attached to the housing in a rotatable manner about an axis of rotation; and a slider that has a wedge section that engages with a latching section provided to the cage, and a slider-side contact section that comes into contact with the lever-side contact section, the slider being guided in the front-rear direction by the guiding section, the lever-side contact section being located opposite the operating section with respect to the axis of rotation, and as the operating section is pushed rearward, the lever-side contact section pushes the slider-side contact section forward and the slider moves forward to a position where the wedge section is unlatched from the latching sType: ApplicationFiled: January 4, 2011Publication date: July 14, 2011Applicants: Fujikura Ltd., Nippon Telegraph and Telephone Corporation, NTT Electronics CorporationInventors: Sawako Yamai, Susumu Okabe, Tsuyoshi Ito, Kota Asaka, Koji Kitahara, Toshio Ishikawa
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Patent number: 7972068Abstract: In one example, a header assembly for use in a communication device has a base that includes a plurality of single ports through which a corresponding plurality of leads extends. The leads are retained in their respective single ports by a retainer material. Additionally, the base includes one or more plural ports through which two or more leads extend.Type: GrantFiled: July 20, 2009Date of Patent: July 5, 2011Assignee: Finisar CorporationInventors: Martin A. Kalberer, Hongyu Deng, Maziar Amirkiai
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Patent number: 7970287Abstract: A driver circuit is coupled to an optical waveguide transmitter. The driver circuit has a current generator that is in series with the transmitter, and a current robbing circuit is coupled to the transmitter. The current robbing circuit is to divert first and second amounts of current from the transmitter, in accordance with predetermined values of first and second bit streams, respectively, in which data is received to be transmitted. Other embodiments are also described and claimed.Type: GrantFiled: October 9, 2009Date of Patent: June 28, 2011Assignee: Intel CorporationInventors: Hengju Cheng, Peter Kirkpatrick
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Patent number: 7963705Abstract: A molded interconnect device (MID) optical connector includes a molded plastic body and a metal retaining clip. The body has a receptacle portion shaped to receive and guide a mating optical fiber ferrule into a connected position. In the connected position, the end of a fiber retained in the ferrule is in optical alignment with an opto-electronic device in the MID optical connector. The retaining clip has one or more contact portions that extend into the receptacle portion of the body and exert a spring force upon the ferrule to retain and stabilize it in the connected position.Type: GrantFiled: February 24, 2009Date of Patent: June 21, 2011Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.Inventors: Tobias Staeber, Thomas Lichtenegger
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Patent number: 7963704Abstract: The connector system provides two identical hermaphroditic housings, which accomplish a reliable connection of standard optical fiber connectors without the use of an adaptor. The connector system includes a first housing mounted to a first printed wiring board and a second housing mounted to a second printed wiring board. Each housing supports an optical fiber connector therein. Each housing includes an inner member and an outer member. Springs are provided between the inner and outer members to provide biasing of the housings in the mating direction of the optical connectors.Type: GrantFiled: January 24, 2006Date of Patent: June 21, 2011Assignee: Molex IncorporatedInventors: Bogdan Andrei, Yuriy Belenkiy, Barbara Grzegorzewska, Malcolm Hodge, Ilya Makhlin, Thomas Marrapode, Thomas Schiltz
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Publication number: 20110135255Abstract: Arrangement comprising an electrical conductor track carrier and an optoelectronic component, and a method for producing such an arrangement The invention relates, inter alia, to an arrangement (10) comprising an electrical conductor track carrier (20) and a component (30) applied on the conductor track carrier.Type: ApplicationFiled: January 21, 2010Publication date: June 9, 2011Inventors: Andreas Matiss, Alexander Jacob, Christoph Leonhardt
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Patent number: 7955003Abstract: In one example, a bail release mechanism includes a bail and a de-latching member. The bail is configured to be attached to the shell of a module that includes a latch pin configured to engage a structure of a host device receptacle to secure the module within the receptacle. The bail is further configured to rotate about a first axis between a latched position and an unlatched position. The first axis is in a fixed position relative to the shell. The de-latching member is attached to the bail at a second axis that is offset from the first axis and is configured to rotate about the second axis. The second axis is movable relative to the shell. The de-latching member includes a first end configured to displace the structure of the receptacle during rotation of the de-latching member to disengage the latch pin from the structure.Type: GrantFiled: June 4, 2009Date of Patent: June 7, 2011Assignee: Finisar CorporationInventors: Tat Ming Teo, Troy Wy Piew Chiang
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Patent number: 7948760Abstract: A transmission/reception optical module has an optical transmission subassembly 182, an optical reception subassembly 183, and a circuit board 1 wherein the circuit board 1 is formed into one member by a rigid/flexible substrate. Circuit board main bodies 2a, 2b, and an optical reception subassembly fixation region 4 are formed by rigid regions 5A, 5b, and 5P. An area provided between the circuit board main body 2a and the optical reception subassembly 4 is composed of a flexible region 6P. A part of the circuit board main body 2 is composed of a flexible region 6.Type: GrantFiled: October 13, 2004Date of Patent: May 24, 2011Assignee: Hitachi Cable, Ltd.Inventors: Hidetaka Kawauchi, Yoshiaki Ishigami, Yoshinori Sunaga, Hiroki Katayama, Akihiro Hiruta
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Patent number: 7942562Abstract: The invention relates to an illumination device, in particular for vehicles. The illumination device comprises at least two semiconductor light sources which emit light with different colours, as well as at least one light guide into which the light from the semiconductor light sources is injected, and a light mixer device that is arranged on the entry side of the light guide and has a transparent light-refracting element, by which the spatial distribution of the light from the light sources is mixed so as to generate light that constitutes a colour superposition of the light from the semiconductor light sources. The transparent light-refracting element comprises an end face which forms a light entry face for the light emitted by the semiconductor light sources, the semiconductor light sources being arranged next to one another and in front of the light entry face.Type: GrantFiled: March 25, 2008Date of Patent: May 17, 2011Assignee: Schott AGInventors: Andreas Hatzenbuehler, Burkhard Danielzik
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Patent number: 7945169Abstract: The present invention provides an optical transceiver with a function of the wavelength division multiplexing. The transceiver includes a receiver optical unit, a transmitter optical units and a substrate. Both optical unit includes a plurality of receiver optical subassemblies (ROSAs) or a plurality of transmitter optical subassemblies (TOSAs) and a plurality of wavelength selective filters. The ROSAs or the TOSAs in respective optical units is electrically connected with the circuit on the substrate by the flexible printed circuit (FPC) board with a plurality of branches, each connected to the ROSAs or the TOSAs, and a connecting portion fixed to the substrate.Type: GrantFiled: October 3, 2007Date of Patent: May 17, 2011Assignee: Sumitomo Electric Industries, Ltd.Inventors: Kazushige Oki, Osami Kasai, Hideaki Kamisugi, Hiromi Kurashima, Yasunori Murakami
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Patent number: 7942587Abstract: A strain-relief assembly for a field-installable fiber optic connector is disclosed, wherein the assembly includes a ferrule holder, an intermediate sleeve, and a crimp sleeve. The ferrule holder back section holds a buffered section of a fiber optic cable, while the ferrule holder front end holds a ferrule and a splice assembly. A stub fiber is held within the ferrule and the splice assembly so as to interface with a section of field optical fiber protruding from the buffered section. The intermediate sleeve engages and generally surrounds a portion of the ferrule holder back section and thus surrounds a portion of the buffered layer. An intermediate sleeve handler may be used to handle the intermediate sleeve and attached the intermediate sleeve to the ferrule holder back section. Stress-relief strands from the fiber optic cable are flared around the outer surface of the intermediate sleeve. A crimp sleeve is placed over the intermediate sleeve to hold the ends of the stress-relief strands in place.Type: GrantFiled: August 5, 2010Date of Patent: May 17, 2011Assignee: Corning Cable Systems LLCInventors: Ray S. Barnes, Kristine A. McEvoy, David W. Meek, Scott E. Semmler
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Patent number: 7945166Abstract: A network interface apparatus comprises a bidirectional optical signal port, an optical diplexer connected to the bidirectional optical signal port, a first RF signal port (bidirectional), a second RF signal port, a first RF diplexer, and an RF splitter. The RF diplexer transmits a first received RF input signal from the first RF signal port to the optical diplexer to modulate an optical output signal transmitted by the optical diplexer to the optical signal port. The RF splitter receives from the optical diplexer an RF signal derived from an RF-modulated optical input signal received from the bidirectional optical signal port, transmits a first portion of the derived RF signal as a first RF output signal to the first RF signal port through the first RF diplexer, and transmits a second portion of the derived RF signal as a second RF output signal to the second RF signal port.Type: GrantFiled: December 7, 2007Date of Patent: May 17, 2011Assignee: HOYA Corporation USAInventor: Henry A. Blauvelt
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Patent number: 7941019Abstract: A method and apparatus use a photonic-crystal fiber having a very large core while maintaining a single transverse mode. In some fiber lasers and amplifiers having large cores problems exist related to energy being generated at multiple-modes (i.e., polygamy), and of mode hopping (i.e., promiscuity) due to limited control of energy levels and fluctuations. The problems of multiple-modes and mode hopping result from the use of large-diameter waveguides, and are addressed by the invention. This is especially true in lasers using large amounts of energy (i.e., lasers in the one-megawatt or more range). By using multiple small waveguides in parallel, large amounts of energy can be passed through a laser, but with better control such that the aforementioned problems can be reduced. An additional advantage is that the polarization of the light can be maintained better than by using a single fiber core.Type: GrantFiled: May 27, 2006Date of Patent: May 10, 2011Assignee: Lockheed Martin CorporationInventors: Christopher D. Brooks, Fabio Di Teodoro
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Publication number: 20110103751Abstract: When a light guide of a sleeve is inserted into a through-hole, a positioning rib is mounted in the holding recess and the sleeve is positioned in the housing. When a transmitting optical module is mounted in a housing space, a positioning protrusion of the sleeve enters a positioning recess of the transmitting optical module and contacts a stepped surface of the transmitting optical module. Thus, the transmitting optical module and a transmitting sleeve are positioned so as to face each other with high precision, and thereby the light transmission efficiency can be increased.Type: ApplicationFiled: January 7, 2011Publication date: May 5, 2011Inventor: Takashi Matsui
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Publication number: 20110103752Abstract: An optical connector (100) defining a receiving space (101) includes an insulative housing (1), a plurality of contacts (2) and an optical fiber module (3) retained in the insulative housing (1). The insulative housing (1) has a base (12) and a tongue (13) extending forwardly from the base (12). The base (12) has a front wall (121) and a cavity (125) extending therethrough. The optical fiber module (3) is received in the cavity (125) and has at least a position post (32) extending forwardly beyond the front wall (121). A protecting mechanism (126) extends into the receiving space (101). The protecting mechanism (126) has a front end (1260) arranged at front of the position post (32) to make the receiving space (101) having a first insertion length (X) and a second insertion length (Y). The second insertion length (Y) is larger than the first insertion length (X).Type: ApplicationFiled: November 5, 2009Publication date: May 5, 2011Inventors: Terrance F. Little, Stephen Sedio, James M. Sabo, Tod M. Harlan
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Publication number: 20110103797Abstract: A pluggable optical transceiver is disclosed. The transceiver comprises a plurality of OSAs, an optical member and a plurality of inner fibers to couple the optical member with OSAs. The inner fibers each provides an inner connector to couple with one of OSAs. The housing, which installs the OSAs, the optical member and the inner fiber, is made of metal and has a grooves into which the inner fibers is set so as to arrange them orderly.Type: ApplicationFiled: October 29, 2010Publication date: May 5, 2011Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kazushige OKI, Hirokazu KOMACHI, Takahisa WADA, Kuniyuki ISHII, Hiromi KURASHIMA
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Publication number: 20110091159Abstract: 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: ApplicationFiled: October 15, 2009Publication date: April 21, 2011Inventors: Michael de Jong, Paul X. Devereaux, Ashley W. Jones, Ronald L. Mudd
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Patent number: 7925166Abstract: An avionics system for a plane includes a plurality of nodes disposed throughout the plane, each node performing a function. The system includes an optical network in communication with the nodes and through which the nodes communicate. The system includes at least one of the nodes having a hardwired interpreter that interprets the information transmitted from another one of the nodes via the optical network. A method for operating a plane includes the steps of communicating information through an optical network between a plurality of nodes disposed throughout the plane, each node performing a function. There is the step of interpreting with at least one of the nodes having a hardwired interpreter the information transmitted from another one of the nodes via the optical network. A phostonic stack.Type: GrantFiled: December 28, 2006Date of Patent: April 12, 2011Inventors: Wilbur C. Vogley, Paul Stoner
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Patent number: 7922399Abstract: In a semiconductor apparatus, a plurality of light-triggered type semiconductor devices, each having a groove for burying of an optical fiber for supplying an optical gate signal to a housing of the light-triggered type semiconductor device, are connected in series. Device cooling heat sinks, each having a flow path for circulating a coolant medium and a coolant inlet and a coolant outlet communicating with the flow path, are disposed on both sides of the housing of each light-triggered type semiconductor device. The light-triggered type semiconductor devices and the device cooling heat sinks are coupled into a single structure. An optical fiber insertion groove, which corresponds in position to the groove of the housing, is provided on a side surface of the device cooling heat sink, which contacts a groove (4)-side surface of the housing of the light-triggered type semiconductor device.Type: GrantFiled: September 22, 2005Date of Patent: April 12, 2011Assignee: Toshiba Mitsubishi-Electric Industrial Systems CorporationInventor: Takafumi Fujimoto
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Publication number: 20110081120Abstract: Optical subassembly grounding in an optoelectronic module. In one example embodiment, a conductive OSA grounding gasket assembly includes a top gasket and a bottom gasket. The top gasket includes a top shell surface and a top OSA surface. The top shell surface is configured to be in direct physical contact with a conductive top shell of an optoelectronic module. The top OSA surface is configured to make direct physical contact with a conductive housing of an OSA. The bottom gasket includes a bottom OSA surface and a bottom shell surface. The bottom OSA surface is configured to be in direct physical contact with the conductive housing of the OSA. The bottom shell surface is configured to make direct physical contact with a conductive bottom shell of the optoelectronic module.Type: ApplicationFiled: October 7, 2009Publication date: April 7, 2011Applicant: FINISAR CORPORATIONInventors: Hung V. Nguyen, Yongshan Zhang, Joshua Moore
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Publication number: 20110081119Abstract: One embodiment includes a connector comprising a connector housing, a ferrule, and a crimp ring. The connector housing has inner and outer surfaces extending between forward and rear ends of the connector housing. The inner surfaces defined a passageway extending lengthwise between the forward and rear ends. The connector housing includes at least one protrusion formed on one of the outer surfaces that is configured to engage a corresponding connector engaging structure of an alignment guide to secure the connector housing within the alignment guide. The ferrule is configured to mount upon end portions of a plurality of optical fibers of a multi-fiber communication cable. The ferrule is disposed partially within the passageway. The crimp ring encompasses the rear end of the connector housing and is configured to secure the connector to the multi-fiber communication cable.Type: ApplicationFiled: March 4, 2010Publication date: April 7, 2011Applicant: FINISAR CORPORATIONInventors: Chris K. Togami, Gary D. Sasser, Frank Flens
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Patent number: 7918611Abstract: An optoelectronic module for converting and coupling an information-containing electrical signal with an optical fiber including a housing having an electrical input for coupling with an external cable or information system device and for transmitting and receiving information-containing electrical signals over such input, and a fiber optic connector adapted for coupling with an external optical fiber for transmitting and receiving an optical signal; an electro-optic subassembly coupled to the information containing electrical signal and converting it to and/or from a modulated optical signal corresponding to the electrical signal; means disposed in the housing for determining the electrical and/or optical protocols or packet formats in use; and a processor for adapting the module to utilize the electrical and optical protocol or packet format.Type: GrantFiled: July 11, 2007Date of Patent: April 5, 2011Assignee: Emcore CorporationInventors: Clay E. Hudgins, Daniel McGlynn
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Patent number: 7918610Abstract: An optical connector fitted upon a tip end portion of an optical fiber ribbon and disposed to face an optical input and output terminators which are installed upon a substrate, and which optically connects between optical fibers of the optical fiber ribbon and each of the optical input and output terminators. The optical connector includes a block shaped connector main body which is disposed to face the optical input and output terminators.Type: GrantFiled: April 8, 2009Date of Patent: April 5, 2011Assignees: Fujikura Ltd., NEC CorporationInventors: Kunihiko Fujiwara, Akito Nishimura, Yukio Hayashi, Tetsuo Nozawa, Takanori Shimizu, Ichiro Hatakeyama, Kazuhiko Kurata
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Publication number: 20110069967Abstract: Described herein are devices, assemblies, and systems for standardized identification of pluggable device, such as pluggable optics or small form-factor pluggable (“SFP”) transceivers. Specifically, the exemplary embodiments provide visual identification of operating properties for various pluggable devices without removing the devices from service and without the aid of software identification techniques. An exemplary assembly comprises a housing including an inserted portion and an exposed portion, a printed circuit board attached within the housing, at least one electrical contact connected to the printed circuit board and attached to the inserted portion providing an electrical connection to a host device, at least one optical contact connected to the printed circuit board and attached to the exposed portion providing an optical connection to an optical device, and a visual indicator displayed on the exposed portion representing at least one characteristic of the device.Type: ApplicationFiled: September 24, 2009Publication date: March 24, 2011Inventor: Stephen Howard Culpepper
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Patent number: 7909518Abstract: An optical assembly includes an optical package having a wall with an aperture and includes a laser device capable of emitting a laser beam through the aperture and a collimator including a sleeve defining a first and a second end, the collimator including a terminating portion of an optical fiber. In addition, the assembly includes a joint element having a first and a second surface, the first surface contacting the wall around the aperture in a first contact area, and the second surface including a convex surface contacting a portion of the surface of the sleeve in correspondence of its first end in a second contact area, the convex surface being at least partially inserted in the sleeve, so that the collimator is aligned with respect to the laser beam.Type: GrantFiled: December 7, 2005Date of Patent: March 22, 2011Assignee: PGT Photonics S.p.A.Inventor: Alessio Pirastu
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Publication number: 20110062312Abstract: Optical subassemblies including optical transmit and receive subassemblies. The optical subassemblies comprise a housing, and first and second substrates mounted within the housing. Also disposed within the housing is a thermoelectric cooler (TEC) thermally coupled to the first substrate. An optical transmitter is mounted on the first substrate, and thermally coupled to the TEC. A TEC driver is mounted on the second substrate and electrically coupled to the TEC. In some embodiments a thermal resistance mechanism is provided for connecting the first substrate to the second substrate.Type: ApplicationFiled: November 15, 2010Publication date: March 17, 2011Applicant: FINISAR CORPORATIONInventors: Lucy G. Hosking, Henry Daghighian
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Publication number: 20110064365Abstract: In one example embodiment, an optoelectronic module comprises a body, a signal ground, and an OSA. The body is connected to chassis ground and defines a cavity within which one or more components are disposed. The optical subassembly is disposed in the body cavity, has one or more components connected to signal ground, and comprises a header assembly, a housing, and one or more containment structures. The header assembly houses one or more components that generate EMI emissions and includes an optical aperture. The housing includes a port and a barrel. The port defines a fiber receptacle and the barrel defines a cavity that at least partially receives the header assembly. The containment structure(s) at least partially contain the EMI emissions within the OSA.Type: ApplicationFiled: November 22, 2010Publication date: March 17, 2011Inventors: Chris Togami, Gary Dean Sasser, Kai F. Ng
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Publication number: 20110064364Abstract: An optical transceiver with an enhanced EMI shielding is disclosed. The optical transceiver of the invention provides an optical receptacle made of metal and an optical subassembly with a metal cover assembled with the optical receptacle. The metal cover electro-magnetically divides the inside from the outside of the transceiver. The metal cover provides a plate portion and an edge portion, where the former portion forms an opening through which the sleeve passes without coming in contact with the metal cover, while, the latter of which comes in contact with the receptacle.Type: ApplicationFiled: September 9, 2010Publication date: March 17, 2011Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventor: Hiromi KURASHIMA
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Patent number: 7905664Abstract: An I/O connector that includes an optical communication component, for example an optical transceiver, mounted to a ferrule body of the I/O connector. The connector can be installed on a circuit card assembly and is configured to allow blind-mate connectivity. Mounting the optical communication component to the ferrule body of the connector frees up the surface of the circuit card that could be eliminated or used for mounting other components, facilitates installation of and access to the optical communication component for repair and maintenance thereof, and eliminates the need for a fiber optic pigtail extending from the connector to the circuit card.Type: GrantFiled: September 25, 2008Date of Patent: March 15, 2011Assignee: Lockheed Martin CorporationInventors: Rick C. Stevens, Aaron M. Cordes, Ryan L. Nelson
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Patent number: 7905666Abstract: An optical module includes a first silicon substrate having a first groove at its surface, a second silicon substrate having a second groove at its surface, a Laser device formed on the first silicon substrate, an optical modulator formed on the second silicon substrate, a substrate on which the first and the second silicon substrates are mounted wherein an optical axis of the Laser device is matched up with an optical axis of the optical modulator, a first lens transforming an divergent light emitted from the first optical device into a parallel light, disposed in the first groove, and a second lens converging the parallel light to the second optical device, disposed in the first groove.Type: GrantFiled: February 6, 2008Date of Patent: March 15, 2011Assignee: Oki Semiconductor Co., Ltd.Inventors: Tokihiro Terashima, Hiroshi Wada
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Publication number: 20110058777Abstract: Various example embodiments are disclosed. According to an example embodiment, a form factor adapter module may include a small form factor (SFF) host connector configured to receive a small form factor pluggable (SFP or SFP+) module and to transmit and receive data according to a Serializer-deserializer Framer Interface (SFI) protocol. The form factor adapter module may also include a 10 Gigabit Ethernet Small Form-Factor Pluggable (XFP) edge finger connector configured to transmit and receive data to and from the SFF host connector according to the SFI protocol and to mate with an XFP edge finger socket.Type: ApplicationFiled: September 10, 2009Publication date: March 10, 2011Applicant: Cisco Technology, Inc.Inventors: Maurizio Gazzola, Giovanni Giobbio, Giacomo Losio
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Patent number: 7901145Abstract: A low-cost, high-speed micro-connector replacement for current electrical inter-connects and intra-connects on printed circuit boards is provided. The invention achieves its goal by including an optical transmitter module or optical receiver module mounted in close proximity to a modulator used to encode optical signals from electrical impulses or decode optical signals to electrical impulses. The micro-connector is mounted on a PCB in alignment with the transmitting or receiving modules and provides appropriate alignment and stop positioning of an optical fiber used for optical transmitting between transmitting/receiving modules.Type: GrantFiled: March 14, 2008Date of Patent: March 8, 2011Assignee: Finisar CorporationInventors: Hongyu Deng, Maziar Amirkiai
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Patent number: 7901146Abstract: An optical module includes a mounted member, a surface optical device and a positioning portion. The mounted member includes an inserted portion. The surface optical device includes a substrate, an optical axis, and an insertion portion. The optical axis is provided in a direction perpendicular to the substrate. The insertion portion has a step surface that is inserted into the inserted portion of the mounted member in a direction perpendicular to the optical axis so as to position the optical axis. The positioning portion is provided in the mounted member and positions an optical transmission member so that the optical transmission member is optically coupled to the surface optical device.Type: GrantFiled: January 22, 2009Date of Patent: March 8, 2011Assignee: Fuji Xerox Co., Ltd.Inventor: Masahiro Yoshikawa
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Publication number: 20110052126Abstract: The present invention is to provide an optical receptacle which is resistant to a mechanical impact, to be capable of obtaining an excellent optical connection. The optical receptacle 1 includes a case 5 having an insertion hole 20 into which a plug ferrule 3 is to be inserted for holding an optical fiber 6, and a transparent substrate 15 disposed on a bottom surface 20a of the insertion hole 20 of the case 5. Further, the case 5 has a through hole 19 formed so as to penetrate from the bottom surface 20a of the insertion hole 20 to one edge face 5a of the case 5 and communicated with the insertion hole 20m, the through hole 19 having a diameter smaller than that of the insertion hole 20. The transparent substrate 15 is disposed in contact with the bottom surface 20a so as to cover the opening of the through hole 19 which opens in the bottom surface 20a of the case 5.Type: ApplicationFiled: March 26, 2009Publication date: March 3, 2011Applicant: KYOCERA CORPORATIONInventors: Takashi Yamamoto, Michifumi Shouda, Tomoyoshi Akashi
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Patent number: 7898736Abstract: Disclosed is a method of fabricating a molded structure including both micro lenses and metallic pins. The method comprises the steps of providing a mold apparatus having a set of first cavities and a set of second cavities, depositing a first material in the first cavities to form a set of metallic pins, and depositing a second material in the second cavities to form a set of micro lenses. The formed molded structure comprises a substrate, a set of molded microlenses on said substrate, and a set of molded metallic pins on that same substrate. The metallic pins may be formed as alignment pins or as electrical connectors. The invention enables the micro lenses and metallic pins to be manufactured by way of molding on a common substrate for the first time.Type: GrantFiled: June 20, 2008Date of Patent: March 1, 2011Assignee: International Business Machines CorporationInventors: Lawrence Jacobowitz, Casimer DeCusatis