Abstract: The invention relates to a high pressure, high voltage penetrator assembly for subsea use, wherein the assembly is upright attachable to a wet gas, subsea gas compressor, and wherein the assembly includes a penetrator unit for feed-through of electric power to a compressor motor; a funnel shaped housing with a housing chamber, the penetrator unit being located at an upper end of the chamber; a grid located inside the chamber transversely of a longitudinal axis of the chamber, the penetrator unit being located above the grid, a filter located in the chamber below the grid and above an inlet to a housing of the compressor motor, and a sensor unit extending into the chamber from the penetrator unit and towards, but spaced from the grid.

Abstract: A cable management panel including a chassis, a drawer, and a rear latch arrangement. The rear latch arrangement including a latch having a free tab end. The free tab end engaging the front edge of a top wall of the chassis to prevent inadvertent closing movement of the drawer relative to the chassis.

Abstract: A light-transmission assembly includes a hermetic optical connection having a housing with a housing side wall extending between opposed first and second housing ends. The housing is configured for sealable securement within a bulkhead bore through a bulkhead separating regions of relatively low and high fluid pressure and includes an interior surface defining a housing bore that extends between and through the first and second housing ends. Sealably bonded within the housing bore is a light-transmissive, rigid optical component having opposed first and second optical-component faces and an optical-component side wall extending between the optical-component faces. The assembly further includes at least a first flexible light conduit having opposed first and second light-conduit faces through which light can enter and exit the first flexible light conduit. The first light-conduit face of the first light conduit is retained in optical alignment with the first optical-component face.

Abstract: The invention relates to an optical fiber plug connector, comprising at least one pair of plug connectors and a coupling, whereby each plug connector comprises a ferrule, each two ferrules of a pair of plug connectors are detachably guided and aligned together within a guide sleeve and the coupling has a housing, for each of the plug connectors. According to the invention, a compact space-saving optical fiber plug connector made from few components may be achieved, whereby the coupling is made from only one component.

Abstract: A cable sleeve for the structured storage and handling of optical waveguides guided in optical waveguide cables is disclosed. The cable sleeve comprises a covering body defining an interior. A sealing body comprising two dimensionally stable end pieces and a compressible gel element arranged between the end pieces is adapted to be insert into an opening of the covering body and operable for feeding optical waveguide cables into the interior and/or for feeding optical waveguide cables out of the interior. Spring elements are integrated into the interior of a covering body. When the sealing body is inserted into the opening of the covering body and compressed, the spring elements bear against one of the dimensionally stable end pieces of the sealing body and exert a compression force onto the gel element.

Abstract: A wire accommodating apparatus includes a cylindrical portion around which a wire connected to a signal transmission part is wound; a number of wire holding portions which incline externally from the bottom of the cylindrical portion and are disposed pivotably; and a fixed portion formed in the cylindrical portion so as to project downward, passing through an attachment hole of a to-be-mounted member, and fixed therein.

Abstract: An optical fiber cable includes a stopper, an enlarged section, around a portion of its outside surface that is adapted to engage a tool, which is used for pulling the cable through a conduit or the like. The stopper may be an integrated part of the cable, or it may be applied to the cable as a shrink tube or an adhesive tape.

Abstract: An optical transceiver includes a housing formed to be inserted into or extracted from a cage in a host device, a movable lock member for preventing the housing from being extracted from the cage, where the cage includes a lock hole for preventing the housing from being extracted from the cage when the movable lock member is placed into the lock hole, and an integration parts.

Abstract: One aspect of the invention relates to a waveguide assembly. The waveguide assembly comprises a waveguide (120) provided on a substrate (126), a waveguide housing (100) and an embedding layer (138) embedding at 5 least part of the waveguide housing (100). The waveguide housing (100) comprises a waveguide channel (102) for guiding the waveguide (120) from the substrate (126) through the embedding layer (138).

Abstract: The present invention relates to apparatus and devices (11) for placing light with samples for analysis and method of making and using such apparatus and device.

Abstract: A cabinet is provided for managing the connections between a feeder cable and a distribution cable wherein the distribution cable is a blown optical fiber. The cabinet includes shelves for holding splices between the feeder cable and the distribution cable. The shelves also include microduct holders for holding each of the microducts associated with the distribution cable.

Abstract: A method and apparatus for adding wires, cables, fibers or the like from an accessible part of a structure, such as an attic or crawlspace to an interior room from within the walls of the structure, includes installing a drop tube during the construction of the structure. The drop tube contains an insulating plug to prevent heated or cooled air from escaping prior to installing the wires, cables, fibers or the like. The drop tube is installed through an interior support and extends to an access point, typically behind an interior wall. The drop tube contains flexible barbs or fasteners that both secure the drop tube to like drop tubes so the desired length can be achieved and also allow for the insertion and securing of the drop tube into a penetration hole.

Abstract: An environmentally sealed closure, such as a terminal for terminated ends of fiber optic cables, includes a housing having a wall defining an interior volume. A floating sealing assembly is provided including a first plate, a seal member and a second plate arranged in a stack within the interior volume. The seal member has an outer sealing edge for contacting the wall of the housing, which may be straight and/or chamfered. Fiber optic cables extend through the sealing assembly so that the terminated ends are within the splice area. The floating sealing assembly is compressed so as to place the outer sealing edge of the seal member in sealing contact with the wall of the housing. When a pressure differential exists between the splice area and the outside of the housing only one of the first or second plates moves along the longitudinal axis to further compress the seal member and increase sealing between the outer sealing edge and the housing wall.

Abstract: A cable gland for a cable includes a body, an insert located within the body, the insert having an internal axial bore, and an adaptor provided with positive location structure arranged in use within the bore of the insert.

Abstract: An electrical and optical hybrid film having high resistance to bending. The electrical and optical hybrid film has an optical waveguide film and an electrical wiring film on the optical waveguide film. The electrical and optical hybrid film has, between its opposite ends, a separated section where the electrical wiring film and the optical waveguide film are not secured to each other. The optical waveguide film has, at the separated section, a slit extending in the longitudinal direction, and the slit penetrates the optical waveguide film.

Abstract: The present invention discloses a pushing-in device and a method for driving through a cable entry port of an elastomeric sealing element of a fiber optic closure. The pushing-in device comprises a first end having an opening adapted to receive a cable, and a second end having a tip. The tip is capable of penetrating and passing through the cable entry port of the sealing element. The first end is capable of penetrating the sealing element at the cable entry port when the pushing-in device is driven through the cable entry port. In this manner, a cable inserted in the opening of the pushing-in device may be inserted and fed through the sealing element into the fiber optic closure. Also, the pushing-in device may be used as a plug in a cable entry port.

Abstract: A feedthrough assembly is disposable in an aperture of, for example, a power source encasement. In various examples, the feedthrough assembly comprises a ferrule, an insulator, a terminal conductor, and a sleeve. A portion of the terminal conductor extends through the ferrule thereby creating a portion internal to and a portion external to the encasement. The insulator is disposed within the ferrule and is sealably engaged with the terminal conductor portion extending through the ferrule. The sleeve is disposed over the internal portion of the terminal conductor and coupled thereto. In one example, the sleeve includes at least one notch on a sleeve first end or a sleeve second end, which may be used to weld or solder the sleeve to the terminal conductor. In another example, the sleeve includes a longitudinally extending void, which may be used to crimp the sleeve to the terminal conductor.

Abstract: An optical fiber drop receiving device may include a housing assembly including a duct entry port for receiving a drop conduit. A drop receiving cylinder may be rotatably mounted in the housing assembly and connected to the duct entry port. The drop receiving cylinder may be configured to receive a fiber drop and a flow of pressurized air from the duct entry port. The drop receiving cylinder may include an escape port for providing an outlet for the flow of pressurized air. The flow of pressurized air through the escape port may cause the drop receiving cylinder to rotate within the housing assembly. The rotation of the drop receiving cylinder may enable winding of the received fiber drop inside the drop receiving cylinder.

Abstract: A telecommunications infrastructure includes first and second trough members for routing signal-carrying fibers. A coupler is used to releasably couple the first and second trough members together. The coupler includes a first pair of rotatable latches for releasably securing the first trough member to the coupler, and a second pair of rotatable latches for releasably securing the second trough member to the coupler.

Abstract: Apparatus and methods are provided for controlling a light emission from an end of an optical fiber by utilizing a cover that blocks the light emission at the fiber end, a detector situated between the fiber end and the cover that detects the blocked emission, and a signaling device, such as an LED, associated with the detector that illuminates in response to the detection of the blocked emission. The apparatus and methods may further provide for the filtering out of light from the emission that is not used for communications. The apparatus and methods may also provide for the attenuation of the power of the emission before the emission reaches the detector.

Abstract: A disclosed feedthrough of a submarine repeater for introducing a tail cable connected to a submarine cable having a transmission line and a feed line into said submarine repeater includes: a tail cable introduction unit having an insulator for internally installing said transmission line and said feed line, said tail cable introduction unit introducing said tail cable connected to said submarine cable into said submarine repeater; a cap member for fixing said tail cable introduction unit on said submarine repeater; and a rubber film formed so as to cover a surface of said insulator.

Abstract: An optical feedthrough assembly is provided that is configured to be disposed through the canister of an implantable medical device. The optical feedthrough assembly comprises a ferrule having an aperture therethrough and an inner surface therethrough. An optical fiber passes through the aperture, and a compression seal stack is disposed within the aperture and around the optical fiber. The compression seal stack sealingly engages the optical fiber and the inner surface.

Abstract: A fiber optic feedthrough includes a housing defining a cylindrical bore, the housing fitting hermetically into an aperture of a wall. A first collimator sealed within the bore receives output from an optical fiber located on a first side of the wall, and a second collimator also sealed within the bore, optically aligned with the first collimator, receives the signal and provides it to a second optical fiber located on a second side of the wall. The polarization extinction ratio of an optical signal traveling through the feedthrough is maintained at a value of at least about 12 dB, and the hermeticity of the feedthrough across the wall is better than about 10?6 atm.cc.sec?1.

Abstract: An optical connector ferrule molding die 1 for molding an optical connector ferrule having a plurality of optical fiber holes comprises an upper die 10, a lower die 11, and an intermediate die 12, whereas the intermediate die 12 comprises a plurality of optical fiber hole forming pins 126 for forming optical fiber holes. The lower die 11 is provided with a protrusion 114 for forming a window hole of the optical connector ferrule, whereas the optical fiber hole forming pins 126 projecting from the intermediate die 12 are secured by through holes 115 penetrating through the protrusion 114 and V-grooves 113.

Abstract: Disclosed is an electronic component which includes a removable planar card having a light emitting diode (LED). The electronic component also includes an attachment flange having a first face and a second face substantially parallel to a removable planar card face, and a bushing installed in a hole in the attachment flange. The bushing includes an inner member having a head, a threaded shaft extending from the head. The inner member is inserted through the flange hole such that the head rests on the flange first face. The bushing also includes a sleeve having an threaded inner diameter that is threaded onto the shaft such that the attachment flange is clamped between the inner member and the sleeve and a bottom end of the sleeve is suspended over the LED. Finally, the electronic component includes an optical transmission line inserted into a through hole in the inner member.

Abstract: A glass-to-meal seal for use in high temperature and high pressure environments is described. The glass-to-metal seals includes an optical fiber having a metallized portion, the metallized portion having an outer dimension; an object having a high strength, corrosion-resistant alloy, the object having an outer surface and an inner surface defining a bore, the bore having a dimension larger than the outer dimension of the metallized portion of the optical fiber; and a hardened solder material disposed between the metallized portion of the optical fiber and the inner surface of the bore, such that a hermetic seal is provided between the metallized portion of the optical fiber and the inner surface of the bore; wherein the solder includes a substance having a melting temperature greater than about 250° C.

Abstract: A system is provided to monitor a structure within an outer casing of a gas turbine engine. The system may comprise an optical fiber bundle, a fiber bundle palette and a camera palette assembly. The optical fiber bundle may have first and second ends. The first end is adapted to pass through a bore in the outer casing of the gas turbine engine so as to be positioned adjacent the structure within the gas turbine engine casing to be monitored. The fiber bundle palette is adapted to be located outside of the engine casing to receive the second end of the optical fiber bundle. The camera palette assembly comprises a fixture movable relative to the fiber bundle palette and a first camera mounted to the fixture. The first camera is adapted to be positioned adjacent to the second end of the optical fiber bundle so as to receive electromagnetic radiation received by the first end of and transmitted through the optical fiber bundle.

Abstract: There is provided fiber optic hardware and hardware components adapted to provide a desired amount of fiber optic connectivity and/or functionality for a desired amount of volume, materials, etc. The fiber optic hardware components include, but are not limited to multiports, local convergence points (LCPs), particularly LCPs for multiple dwelling units or similar applications, network interface devices, equipment frames, and fiber distribution hubs. Certain fiber optic hardware components are adapted to accommodate microstructured optical fiber or other bend performance optical fiber.

Abstract: A hermetic seal device for a polarization-maintaining optical fiber is provided. The hermetic seal device includes a polarization-maintaining optical fiber and a cylindrical member to be inserted by the polarization-maintaining optical fiber, where the cylindrical member has the difference 3×10?6/K or less in expansion-coefficient absolute value between the polarization-maintaining optical fiber and the cylindrical member.

Abstract: A fiber optic feedthrough includes a housing defining a cylindrical bore, the housing fitting hermetically into an aperture of a wall. A first collimator sealed within the bore receives output from an optical fiber located on a first side of the wall, and a second collimator also sealed within the bore, optically aligned with the first collimator, receives the signal and provides it to a second optical fiber located on a second side of the wall. The polarization extinction ratio of an optical signal traveling through the feedthrough is maintained at a value of at least about 12 dB, and the hermeticity of the feedthrough across the wall is better than about 10?6 atm.cc.sec?1.

Abstract: Disclosed is an electronic component which includes a removable planar card having a light emitting diode (LED). The electronic component also includes an attachment flange having a first face and a second face substantially parallel to a removable planar card face, and a bushing installed in a hole in the attachment flange. The bushing includes an inner member having a head, a threaded shaft extending from the head. The inner member is inserted through the flange hole such that the head rests on the flange first face. The bushing also includes a sleeve having an threaded inner diameter that is threaded onto the shaft such that the attachment flange is clamped between the inner member and the sleeve and a bottom end of the sleeve is suspended over the LED. Finally, the electronic component includes an optical transmission line inserted into a through hole in the inner member.

Abstract: The invention relates to a method and a device for coupling fiber optic cables. Said device comprises at least one module, which is equipped with at least one retaining unit for retaining at least two cassettes. The invention is characterized in that: a cassette is configured with at least one coupling element; at least one strand bundle can be fixed to the module, whereby said strand bundle can be split into at least two strands comprising at least one fiber optic cable; an excess length of strand can be retained by a cassette, the fiber optic cable or cables being connected to the coupling element and the cassette together with its retained strand being detachably connected to the retaining unit.

Abstract: Optical sensors used in harsh environments require a sealed pressure tight passage of an optical waveguide into an interior of the sensor. In one embodiment, a pressure sensor assembly for determining the pressure of a fluid in a harsh environment includes a sensing element suspended within a fluid filled housing. An optical waveguide that provides communication with the sensing element couples to a feedthrough assembly, which includes a cane-based optical waveguide forming a glass plug sealingly disposed in the housing. The glass plug provides optical communication between the optical waveguide and the sensing element. A pressure transmitting device can transmit the pressure of the fluid to the fluid within the housing. The assembly can maintain the sensing element in a near zero base strain condition and can protect the sensing element from shock/vibration.

Abstract: Disclosed is an electronic component which includes a removable planar card having a light emitting diode (LED). The electronic component also includes an attachment flange having a first face and a second face substantially parallel to a removable planar card face, and a bushing installed in a hole in the attachment flange. The bushing includes an inner member having a head, a threaded shaft extending from the head. The inner member is inserted through the flange hole such that the head rests on the flange first face. The bushing also includes a sleeve having an threaded inner diameter that is threaded onto the shaft such that the attachment flange is clamped between the inner member and the sleeve and a bottom end of the sleeve is suspended over the LED. Finally, the electronic component includes an optical transmission line inserted into a through hole in the inner member.

Abstract: There is provided grommet and plate assemblies for sealing fiber optic closures into which and/or out of which fiber optic cables are routed. The grommet of the assembly includes a central portion with an axial opening adapted to receive the fiber optic cable through a slit in the central portion. The grommet also includes an end cap portion on an axial end of the grommet, and the end cap portion includes a deformable outer lip that overhangs an outer surface of the central portion to provide axial retention of the grommet once it is inserted into an opening of the plate. The plate includes a plurality of openings into which grommets may be selectively inserted. The plate may be received within an opening of the fiber optic closure and includes a slot for receiving a protrusion within the opening of the fiber optic closure.

Abstract: A cable management system is provided that is configured to be located between adjacent equipment racks, while being vertically oriented to extend upward along a narrow space between the adjacent equipment racks. The cable management system comprises a main panel extending along a vertical longitudinal axis, the main panel having a series of module cutouts provided therein and oriented to extend along the longitudinal axis. The system further includes inter-bay functional modules secured in at least two of the module cutouts. The inter-bay functional modules include at least two of a fiber spool module, a patch panel module and a dispersion compensation module. The main panel includes a front wall having the module cutouts formed therein. The front wall is integrally joined with side flanges extending rearward therefrom to form a channel cross-section.

Abstract: A slack cable storage system is provided which stores slack cable under a fiber access terminal or pedestal and provides support for the terminal or pedestal. The slack cable is thus stored under the terminal and is available for splicing or restoration of service. The cable entry to the terminal or pedestal is sealed to keep humid air in the storage system out of the terminal.

Abstract: A fiber optic cable includes multiple optical fibers extending from a low-pressure environment into a high-pressure environment. At a junction region, the optical fibers are substantially free of any coating, while the fibers include a coating in the low- and high-pressure regions. The fibers are metallized in the junction region, and an epoxy layer is bonded to the metallization. A protective, conductive housing is positioned around the cable. The fibers in the low-pressure region are coupled to communications electronics, and the pattern is repeated as needed to form a needed length of communication cable.

Abstract: An optical fiber ribbon splitting tool for selectively separating optical fibers of an optical fiber ribbon into one or more subsets of optical fibers. The ribbon splitting tool comprises a housing, a shearing device movably mounted within the housing, and an actuator for actuating the shearing device such that a subset of optical fibers is separated from the optical fiber ribbon. The shearing device may comprise a plunger having at least one shearing edge profile and a platen. A ribbon splitting tool for use at a cable access point of a fiber optic cable in which at least one optical fiber ribbon is accessible for splitting.

Abstract: The present invention relates to a sealing device for optical fiber, comprising in combination a plurality of conical jaws (4) with which optical fiber (1) is in line, a body including a corresponding female cone (3) intended to receive the jaws, a nut (6) screwed on the body so as to compress the jaws, a casing (10) linked to the body and covering the nut so as to form around it an at least partly confined volume, a filling material (9) intended to fill at least part of the volume, and wherein the material comprises solid fillers favouring sealing between the body, the jaws and the fiber.

Abstract: An optical waveguide feedthrough assembly passes at least one optical waveguide through a bulk head, a sensor wall, or other feedthrough member. The optical waveguide feedthrough assembly comprises a cane-based optical waveguide that forms a glass plug sealingly disposed in a feedthrough housing. A seal fills an annular space between the glass plug and the housing. The seal may be energized by a fluid pressure in the housing to establish sealing engagement. Further, the seal may provide bidirectional sealing. The feedthrough assembly is operable in high temperature and high pressure environments.

Abstract: An optical fiber feedthrough assembly includes a glass plug disposed in a recess of a feedthrough housing. The glass plug may define a large-diameter, cane-based, waveguide sealed within the recess in the housing and providing optical communication through the housing. Sealing occurs with respect to the housing at or around the glass plug of an optical waveguide element passing through the housing by braze sealing to the glass plug and/or embedding the glass plug in a polymer bonded with the plug to form a molded body that is sealed in the housing by, for example, compression mounting of the molded body or providing a sealing element around the molded body.

Abstract: An optical fiber comprises a hollow fiber core, wherein the front faces of both fiber ends of the hollow fiber core are open and each fiber end is surrounded by a protection element in a dustproof fashion. The protection element includes a window at its front face in front of the fiber end to couple and decouple light to and from the hollow fiber core.

Abstract: Method and apparatus for feeding on optical waveguide through a partition device, such as a wellhead outlet are disclosed. For some embodiments, the wellhead outlet includes a first chamber having a first port, a second chamber having a second port connected by a path to the first port for feeding an optical waveguide through to the first chamber, and a strain relief member coupled with the first chamber to limit motion of the optical waveguide at or near the first port. The strain relief member can be a rigid curved tube coupled to the first port and/or a fiber management member providing one or more fiber retention pathways.

Abstract: Disclosed is an electronic component which includes a removable planar card having a light emitting diode (LED). The electronic component also includes an attachment flange having a first face and a second face substantially parallel to a removable planar card face, and a bushing installed in a hole in the attachment flange. The bushing includes an inner member having a head, a threaded shaft extending from the head. The inner member is inserted through the flange hole such that the head rests on the flange first face. The bushing also includes a sleeve having an threaded inner diameter that is threaded onto the shaft such that the attachment flange is clamped between the inner member and the sleeve and a bottom end of the sleeve is suspended over the LED. Finally, the electronic component includes an optical transmission line inserted into a through hole in the inner member.

Abstract: A device and method of blocking customer access to a fiber optic distribution cable. A service blocker is positioned between a fiber distribution cable and a customer drop cable within a fiber optic adapter. The service blocker includes a body which does not permit optical transmission between the fiber distribution cable and the customer drop cable. The service blocker includes a first end configured to be inserted within the fiber optic adapter and a second end configured connect with a fiber optic cable connector. A system for mounting fiber optic cables including a service blocker positioned within a bulkhead mounted adapter between two fiber optic cables.

Abstract: An optical feedthrough assembly is provided that is configured to be disposed through the canister of an implantable medical device. The optical feedthrough assembly comprises a ferrule having an aperture therethrough and an inner surface therethrough. An optical fiber passes through the aperture, and a compression seal stack is disposed within the aperture and around the optical fiber. The compression seal stack sealingly engages the optical fiber and the inner surface.

Abstract: Methods and apparatus are provided for a seal assembly that includes a first plate, a second plate, and compliant material. The first and second plates each have a first side, a second side, and a channel extending therebetween. The channel includes a first cross-sectional area proximate the first side and a second cross-sectional area that is proximate the second side. The first cross-sectional area is greater than a second cross-sectional area. The compliant material is disposed between the first and second plates and is at least partially within the first plate channel and the second plate channel.

Abstract: A cable radius limiter having a radius limiting surface that prevents damage to cables due to excessive bending. The cable radius limiter includes mounting structure and cable retaining structure arranged such that the limiter can be operably oriented and mounted to a mounting bracket in both a first mounting orientation and a second mounting orientation. The mounting bracket includes a number of fingers to which a plurality of the cable radius limiters is secured.

Abstract: A cable strain relief that includes an over-molded portion affixed to a cable and a flexible decorative boot. The decorative boot is passed through an opening in an enclosure. The cable is passed through a cylindrical space form in the decorative boot until the over-molded piece engages the walls of the cylindrical space, holding it in place. The over-molded portion is positioned within the decorative boot such that a flange is seated on a collar of the decorative boot within the enclosure.