Abstract: A fiber optic adapter assembly includes a plurality of adapters included in an integrally formed body. Each of the adapters may include a protective shutter mounted within one end. The adapter assembly may be configured to mount to a chassis and position the adapters for receiving fiber optic connectors of telecommunications modules mounted to the chassis.

Abstract: Exemplary embodiments include a tracing clip for a fiber optic cable including: a clip body including an inner and an outer surface; a metal clip disposed on the outer surface; a metal tooth disposed on the inner surface, wherein the metal clip tooth connects to a metal element extending substantially axially along the entire length of fiber optic cable and to the metal clip.

Abstract: The specification discloses a cable (e.g., fiber optic) housing assembly that facilitates securing cables and splices within its interior while providing a convenient work tray to assist a technician when splicing cables above ground level. The housing assembly can be equipped with a grommet and bobbin assembly that secures cables within the interior of the housing. Additionally, modular splice blocks can be configured within the interior of the housing in order to secure cable splices. In aspects, these modular splice blocks can be added as needed in a variety of configurations, including but not limited to, vertical stacking, horizontal back-to-back, or the like. The modular characteristics of the splice blocks enhance the as-needed extensibility of the housing assembly.

Abstract: A telecommunications assembly including a housing and a plurality of modules mounted within the housing. The modules includes a rear face in which is mounted at least one fiber optic connector. Within an interior of the housing are positioned at least one fiber optic adapters. Inserting the module through a front opening of the housing at a mounting location positions the connector of the module for insertion into and mating with the adapter of the housing. The adapters within the interior of the housing are mounted to a removable holder. A method of mounting a telecommunications module within a chassis.

Abstract: A release auxiliary device (6) includes a cover part (51) that is provided movably with respect to a receptacle (11) along the insertion/removal direction of a plug (12), and an inclined pressing part (52) that is provided in the cover part (51) and is touchable, from a lower side, to an end portion (41a) of a lever (41). The inclined pressing part (52) presses against the end portion (41a) of the lever (41) and moves the lever by moving the cover part (51) in a direction in which the plug (12) is detached, enabling release of engagement between engaging portions (42, 28).

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. Two radius limiters can be mounted together to form a cable spool.

Abstract: An optical fiber measuring module is provided with an optical fiber cable (2) including an optical fiber core (2a), a cladding (2b) and a covering layer (2c), a base member (3) for holding the optical fiber cable (2), and an attachment member (4) for attaching the base member (3) to a structure (1).

Abstract: A cable assembly comprising a first fiber optic cable, a second fiber optic cable attached to the first fiber optic cable, and an apparatus for remotely releasing at least a portion of the second fiber optic cable from attachment to the first fiber optic cable. A cable assembly comprising a distribution cable, a tether cable attached and optically interconnected to the distribution cable at a first position, and removably attached to the distribution cable at one or more second positions, and a tether cable release apparatus for remotely releasing at least a portion of the tether cable from the distribution cable to allow the tether and a tethered assembly to be pulled to a predetermined location within a network.

Abstract: A cable management support for a conventional equipment rack provides various bars and members to support, order, direct and otherwise manage cables coupled to equipment secured in the rack.

Abstract: A test apparatus includes a test head including a plurality of test boards for applying a test pattern to a device under test, a main frame for controlling a test sequence by the test head, and a fiber optic cable unit including a plurality of flat cables for optically coupling the test head and the main frame, a plurality of fiber optic cables, a dam for coupling the fiber optic cable unit and the plurality of fiber optic cables, a circumferential difference absorption apparatus for absorbing the difference in circumferential length between the plurality of flat cables of the fiber optic cable unit, and a cable guide unit for bending and holding the fiber optic cables coupled to the test board of the main frame.

Abstract: A tool for an optical connector including a clamping portion for clamping an optical fiber between clamping elements, the tool including: first and second insertion members, respectively including separately extractable first and second distal ends, wherein the first and second distal ends maintain the clamping elements in an open state by being wedged therebetween from outside the clamping portion, so that the optical fiber is movable between the clamping elements; first and second insertion member operating portions, respectively separately connected to proximal ends of the first and second insertion members, that individually extract the first and second distal ends of the first and second insertion members from between the clamping elements; and a stopper portion against which the optical connector is pressed when the first and second insertion members are extracted from between the clamping elements.

Abstract: An improved, reversibly terminable fiber stub connector assembly is provided that can be readily and positively terminated in the field using simple termination tools. This allows repositioning or replacement of fiber optic cable field fibers if termination is not acceptable in performance. The tool may be a hand-held tool, or used in conjunction with a connector support structure to provide simplified and expeditious field termination of fiber optic cables. The cam tool can include a throughbore that enables connection of a patchcord to the stub fiber of the connector during or shortly after termination without removal of the termination tool. Accordingly, field testing of the connection can be made at the site of termination.

Abstract: An optical fibre installation includes (i) a part defining an inlet for optical fibres that has a through-hole for the passage of optical fibres and an associated mating region for a push-fit connector, (ii) an optical fibre cable connected to an adapter that defines a connection region having a predetermined cross-section for mating with a push-fit connector and (iii) a push-fit connector having a first end, a second end, a through-passage extending between those ends and a seal associated with the first end. The second end of the push-fit connector is push-fit connected to the connection region of the adapter and the first end of the push-fit connector is push-fit connected with the mating region of the inlets in such a way that the seal sealingly engages the inlet defining part. The arrangement is such that optical fibres from the optical fibre cable can be directed through the push-fit connector and the through-hold of the inlet.

Abstract: An optical fiber wire clip suitable for being fixed on a base for clipping an optical fiber wire is provided. The optical fiber wire clip has a through hole. The optical fiber wire is suitable for being disposed through the through hole and clipped by a wall of the through hole. The maximum static friction between the wall of the through hole and the surface of the optical fiber wire is set to be smaller than the maximum stress that can be withstood by the optical fiber wire.

Abstract: A patch panel configured for mounting to a network rack, includes: a frame including mounting features at opposite lateral ends for mounting the patch panel to the network rack; a bezel mounted to the patch panel, the bezel including a plurality of outlet apertures, and a plurality of communication outlets mounted in respective ones of the outlet apertures. Each of the outlets includes a plurality of electrical contacts within a plug aperture configured to receive a mating plug. The plug aperture has a generally horizontal axis for receiving the mating plug and further includes a plug latch recess. The outlets are oriented such that the plug latch recess is positioned on one side edge of the plug aperture.

Abstract: A fiber optic splice storage apparatus includes a central segment defining a splice chamber configured to receive a plurality of fiber optic splices, a first slack fiber storage segment pivotally connected to a first end of the central segment and having an open position extending from the first end away from the central segment and a closed position extending over the central segment, and a second slack fiber storage segment pivotally connected to a second end of the central segment, opposite the first end, the second slack fiber storage segment having an open position extending from the second end away from the central segment and a closed position extending over the central segment. A first plurality of slack fiber guide members on the first slack fiber storage segment are configured to receive and retain a loop of optical fibers and a second plurality of slack fiber guide members on the second slack fiber storage segment are configured to receive and retain a loop of optical fibers.

Abstract: A test apparatus including an optical coupler for optically coupling a main frame and a test head is provided. The optical coupler has a plurality of optical fiber cables, a cable storage chain for bundling a stored portion except for a non-stored portion in a part of the test head side and a non-stored portion in a part of the main frame side of the plurality of optical fiber cables and storing the same, a test head side cable storage unit provided at the boundary between the non-stored portion and the stored portion of the plurality of optical fiber cables on the test head side and being capable of adjusting a length for storing therein the non-stored portion on the test head side and a main frame side cable storage unit provided at the boundary between the non-stored portion and the stored portion of the plurality of optical fiber cables on the main frame side and being capable of adjusting a length for storing therein the non-stored portion on the main frame side.

Abstract: A splice holder device includes a tray mountable in a telecommunications closure, the tray including a splice mounting mechanism configured to receive a splice device. The splice holder device also includes first and second fiber clamps disposed on the tray, wherein the first and second fiber clamps are each configured to releasably secure a buffered portion of an optical fiber. The tray can include a single splice device, such as a mechanical splice, mounted therein or can include a plurality of splice devices mounted therein. The splice holder device can be configured to be securedly mounted in a telecommunications enclosure.

Abstract: Embodiments of the invention include a closure apparatus for clamping a transmission cable, such as an optical fiber transmission cable, and one or more tether cables. The closure apparatus includes a first member and a second member, each with a first partially cylindrical segment that fits around at least a portion of the transmission cable and at least one second partially cylindrical segment that fits around at least a portion of a corresponding tether cable. The first and second members are configured in such a manner that, when the first and second members are operably joined together, they form a closure around the transmission cable and the at least one tether cable in such a way that the transmission cable and the at least one tether cable are substantially parallel and co-planar with one another.

Abstract: A bracket assembly includes a bracket including a flexible hinge, and a furcation assembly attached to the bracket.

Abstract: A loopback device utilizing bend insensitive optical fiber to facilitate deployment of a connectorized fiber optic distribution cable through small-diameter conduit. A loopback device utilizing bend insensitive optical fiber for use within an optical network to route optical signals transmitted downstream along one or more optical fibers back upstream along the same or other optical fibers for the purpose of the determining the integrity of the downstream and upstream optical paths from a single upstream location. A loopback device including one or more bend insensitive optical fibers, a multi-fiber loopback ferrule and a dust cap for sealing engaging a connector plug attached to a distribution cable or a tether of a pre-engineered distribution cable assembly prior to installation of the distribution cable.

Abstract: An installation closure having fiber management apparatus includes an outer shell and at least one cable centralizer disposed within the outer shell at a factory-assembled access location on a fiber optic distribution cable. The cable centralizer has a central channel for retaining the distribution cable and at least one routing slot for routing an optical fiber preterminated from the distribution cable at the access location. At least a portion of the outer shell is removed following deployment of the distribution cable and replaced with a conventional closure. An optical connector may be mounted upon the end of the preterminated optical fiber and the installation closure may further include an end centralizer having a central channel for retaining the distribution cable and at least one connector slot for retaining the connector. The replacement closure includes at least one connector port for receiving the connector from the inside of the installation closure.

Abstract: A device for shifting the imaging axis of a microscope across the endfaces of a multi-fiber connector for inspecting the fiber-optic endfaces through the microscope comprises a supporting body for attaching at one end to the optical tube of a microscope; a pendular arm rotatably mounted to another end of the supporting body; a fitting tip attached to another end of the pendular arm; a bevel wheel fastened to the supporting body; and a torsion spring for pushing the pendular arm against a slanted surface of the bevel wheel. The bevel wheel is adapted to swing the pendular arm relative to the supporting body so that the imaging axis of the microscope is moved relative to the fitting tip to selectively align the imaging axis between adjacent fiber-optic endfaces for inspection.

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: The present disclosure relates to a telecommunications cable including a distribution cable and a tether that branches from the distribution cable at a mid-span breakout location. A flexible closure covers the mid-span breakout location. Within the closure, fibers are broken out from the distribution cable and spliced to fibers of the tether. The lengths of broken out fibers within the flexible closure are provided with sufficient excess fiber length to allow the closure to be readily bent/flexed in any direction without damaging the fibers.

Abstract: A cable guide and system are disclosed for maintaining a desired bend radius. The cable guide includes two substantially curved tube halves, each tube half comprising a curved portion having a predetermined radius. The cable guide also includes a hinge joining the tube halves and a fastening member configured to fasten the tube halves together. A first end of each of the tube halves is shaped to adhere to a cable connector. The cable connector terminates a cable. The tube halves have an open configuration and a closed configuration. When in the closed configuration, the tube halves are fastened together by the fastening member. In the closed configuration, the tube halves form a tubular sleeve. The tubular sleeve includes a lumen through which a cable may extend.

Abstract: A tool and method for accessing fibers within an optical fiber cable is provided. The tool can be used to access optical fibers within buffer tubes held in distribution cables. The tool works well even when the buffer tubes to be accessed are held tightly within distribution cables. In one embodiment, the tool is clamped over a buffer tube and a blade is slid across a blade guide of the tool to facilitate the cutting of a fiber access window in the buffer tube. The method of accessing fibers within a fiber optic cable includes supporting a section of buffer tube and sliding a blade across the mid-portion of the supported section thereby creating optical fiber access windows therein.

Abstract: A fiber cleaver is provided which is capable of cleaving a glass fiber portion in a short time without depending on a particular working environment. The fiber cleaver comprises a holding member for holding a glass fiber portion of an optical fiber, a cutter for affording a scratch to the glass fiber portion which is held by the holding member, an elastic member or spring for moving the cutter, and a slider engaging member for maintaining the elastic member or spring in a state of elastic deformation. Also provided is a fiber cleaver comprising a holding member for holding the glass fiber portion of an optical fiber, a cutter for affording a scratch to the glass fiber portion held by the holding member, and a holder engaging part for holding a holder that holds an optical fiber at its part having a protective covering. The holder engaging part has a first holder engaging member for pushing and holding the holder in a direction parallel to a movement direction of the cutter.

Abstract: A device for storing and handling optical fibers, namely a cable sleeve, includes a frame and a plurality of splice cases arranged one above the other on a front side of the frame and on a rear side of the frame and pivotally fastened to the frame. Fiber guide elements are mounted on at least one narrow side of the frame for guiding optical fibers laterally next to the splice cases. A drawer disposed between the splice cases and configured to be drawn out from a vertically running narrow side of the frame stores uncut multifiber buffer tubes containing optical fibers. Guide channels are disposed inside the splice cases such that the optical fibers are guided within the splice cases in a circular manner with approximately the same radii, irrespective of their individual lenths.

Abstract: A fiber management access system includes a guide that can be movably coupled to an exterior of a chassis for routing fibers of the system. The guide can include a channel for directing fibers of the system to a side of the guide, and can have multiple routing troughs located in the channel for routing the fibers. The guide can be movable to allow access to a serviceable element of the fiber management access system.

Abstract: In an optical connector for use in connecting an optical fiber, a shell member has an engaging portion. An internal member holds the optical fiber and is received in the shell member to be removable in a first direction. A stopper is engaged with the engaging portion in the first direction. A spring is engaged with the internal member and the stopper and urges the internal member towards a second direction opposite to the first direction. The shell member has a release operation portion for releasing the engaging portion from the stopper.

Abstract: The present invention relates to an optical fiber holding apparatus and the like, which has a structure for stably holding optical fibers with a satisfactory force without interfering with other components even when the apparatus is miniaturized. The optical fiber holding apparatus includes a stage for loading a front-end portion of the optical fiber and a lid section for sandwiching the optical fiber together with the stage. The lid section is rotatably connected with one end of an arm, and a fiber holding section is provided at the other end of the arm. The arm extends along the loading direction of the optical fiber and has such a length that the other end thereof is positioned outside of the lid section. Owing to this arrangement, the optical fiber to be held is pressed onto the stage at a further front-end side than the portion sandwiched by the stage and the lid section.

Abstract: An optical fiber distribution frame including a first cross-connection panel and a second cross-connection panel facing each other, and a first support in each panel for connection modules. Each module on the first panel is adapted to be connected to one end of an optical fiber of a first group, each module on the second panel is adapted to be connected to one end of an optical fiber of a second group, and an optical fiber of the first group is adapted to be connected to an optical fiber of the second group by a jumper fiber which has two ends respectively received in a port of one of the modules on the first panel and in a port of one of the modules on the second panel. The first and second panels each include a second connection module support, with said second supports cooperating with each other to form a storage area for jumper fibers that are not in use and awaiting connection. The jumper fibers are automatically connected or disconnected by a device.

Abstract: A test apparatus includes a test head including a plurality of test boards for applying a test pattern to a device under test, a main frame for controlling a test sequence by the test head, and a fiber optic cable unit including a plurality of flat cables for optically coupling the test head and the main frame, a plurality of fiber optic cables, a dam for coupling the fiber optic cable unit and the plurality of fiber optic cables, a circumferential difference absorption apparatus for absorbing the difference in circumferential length between the plurality of flat cables of the fiber optic cable unit, and a cable guide unit for bending and holding the fiber optic cables coupled to the test board of the main frame.

Abstract: A transition assembly is provided that has a base with two sides and a plurality of optical fibers attached to each of the two sides. The optical fibers are attached to the base, with a protective covering over the optical fibers. The optical fibers are in a ribbonized format at one end of the transition assembly and in an individual format at the other end. The individual optical fibers may have protective tubes disposed thereon for protection.

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 splice tray arranged to manage and store both stranded fiber optic cables and ribbon fiber optic cables. The tray includes a splice holding arrangement that accommodates both stranded splice components and ribbon splice components. The tray also includes a storage arrangement having radius limiting arrangements that define a number of storage or routing pathways that accommodate varying lengths of both stranded fiber optic cables and ribbon fiber optic cables.

Abstract: Respective stoppers are engaged with a jacket at positions along a longitudinal direction of an optical cable different from each other by using a plurality of the stoppers having pairs of engaging pieces arranged in parallel with each other by an interval dimension smaller than a width dimension of the jacket of the optical cable. Further, positions of engaging the pairs of engaging pieces and the jacket may be shifted from each other by a quarter periphery in a peripheral direction of the optical cable for the respective stoppers.

Abstract: A fiber optic cable assembly is provided. The cable assembly includes a housing, a plurality of furcation tubes, and a bundled cable. The housing has an opening at a first end and a plurality of channels at a second end. The furcation tubes are aligned with corresponding channels. One end of the bundled cable extends into an interior space of the housing through the opening. The bundled cable has a cable jacket and cable filaments. A first portion of the cable filaments extends beyond the end of the cable jacket in the interior space. A plurality of optic fibers is disposed in the bundled cable and the housing, and a molding compound is disposed around the furcation unit. Individual optic fibers are in individual furcation tubes and movable to slide longitudinally relative to the housing.

Abstract: Optical connector assemblies suitable for use in harsh environments such as down hole oil and gas well applications and methods for fabricating the same are provided. In one embodiment, an optical connector assembly suitable for down hole oil field applications comprises a first and second optical waveguide urged by a biasing member against a bracket. Each of the waveguides has at least one base surface formed on the exterior of the waveguide that is disposed against at least one of a plurality of reference surfaces of the bracket. In another embodiment, flats comprise two of the base surfaces on each optical waveguide.

Abstract: An optical fiber coil of sub-micron diameter is shown to exhibit self-coupling between adjacent turns so as to form a three-dimensional optical resonator of relatively low loss and high Q. As long as the pitch of the coil and propagating wavelength remain on the same order (or less than) the fiber diameter, resonance may occur. Resonances can be induced by allowing adjacent turns of the coil to touch each other. Optical devices such as resonators and interferometers may then be formed from such “microcoils” that exhibit superior characteristics to conventional planar devices. A method of forming such a microfiber using indirect laser heating is also disclosed.

Abstract: A patch box including a housing in which the housing has a rail-mounting latch. An optical fiber assembly mounted within the housing wherein the housing has connectors mounted thereon. The optical fiber assembly connects between at least two of the connectors.

Abstract: The present invention is an apparatus and method for repairing an isolation gap in a fiber cable after removing an isolation closure from the cable. A flexible, curable polymeric material is first applied in the gap over the fiber buffer tube. A flexible wire mesh strengthening member is then placed over the gap and over the exposed metallic elements of the fiber cable on both sides of the gap. The strengthening member is closed around the fiber cable and is woven with the metallic elements of the cable. A heat shrink material is then applied over the strengthening member and is sealed by heating. The heat shrink material may be sealed with a polymer sealant.

Abstract: A fiber clamp (220) for clamping an optical fiber (16) includes a first clamp section (228) and a second clamp section (230) that flexibly urges the optical fiber (16) against the first clamp section (228). The second clamp section (230) can include a retainer housing (244) and a pair of spaced apart flexible members (246) that extend from the retainer housing (244). The flexible members (246) flexibly urge the optical fiber (16) against the first clamp section (228). A fastener assembly (232) can be used to urge the clamp sections (228) (230) directly together.

Abstract: The present disclosure relates to a telecommunications cable including a distribution cable and a tether that branches from the distribution cable at a mid-span breakout location. A flexible closure covers the mid-span breakout location. Within the closure, fibers are broken out from the distribution cable and spliced to fibers of the tether. The lengths of broken out fibers within the flexible closure are provided with sufficient excess fiber length to allow the closure to be readily bent/flexed in any direction without damaging the fibers.

Abstract: A router includes tubular segments interconnected to one another. Each tubular segment surrounds an interior which accommodates fiber optic jumpers within the tubular segment. A latch of a first one of the tubular segments connects to a connector hole of a second one of the tubular segments to interconnect the first and second tubular segments.

Abstract: A secure fastener for joining fiber optic cables, is presented. The fastener includes a first segment having a first plurality of grooves to accommodate portions of the fiber optic cables, a first plurality of posts, a first plurality of apertures, and a first raised contoured portion and a second segment having a second plurality of grooves to accommodate portions of the fiber optic cables, a second plurality of posts, a second plurality of apertures, and a second raised contoured portion. The first plurality of posts of the first segment cooperates with the second plurality of apertures of the second segment and the second plurality of posts of the second segment cooperates with the first plurality of apertures of the first segment to secure the first and second segments to each other to form the fastener. The first and second raised contoured portions are configured to damage the fiber optic cables if the fastener is tampered with.

Abstract: A flexible cross-connect apparatus for cross-connecting fiber optic cables includes a transition strength member, at least one cable clamp assembly, at least one fiber storage device, and a cover for protecting the cross-connect apparatus. The cross-connect apparatus is flexible about a preferential bending plane because the transition strength member includes a preferential bending plane for influencing bending. The at least one cable clamp assembly is used for securing one or more cables with the transition strength member at the ends. In one embodiment, a splice carriage is removably attached to the transition strength member for aiding the craftsman to work at a splicing station.

Abstract: A small form factor transceiver module includes a cage (1) and a transceiver (2). The cage has a top wall (11), and two sidewalls (12) and a rear wall (13) integrally formed with the top wall. The transceiver received in the cage has a printed circuit board (3) and at least one optical-electric diode electrically connected to the printed circuit board. The sidewalls have two bottom boards (121), each with a flange (120). A plurality of pins (123, 125, 133) is integrally formed with and extends from the bottom boards, the sidewalls and the rear wall.

Abstract: An optical fiber connecting device has a pair of holding elements which are formed on an actuating member and are capable of undergoing elastic deformation as a sheath holding mechanism for securing, to a body, the sheath portions S of the optical fibers F having uncoated fiber elements C to be held by the fiber-element securing member. The holding elements form a pair of passages for guiding the optical fibers F on the body. The holding elements undergo the elastic deformation accompanying the motion, on the body, of the actuating member for closing the fiber-element securing member, and push and hold the sheath portions S of the optical fibers F in the corresponding passages by utilizing their own elastic restoring forces. Each holding element includes a pressing part formed at a free end separated away from a fixed end part, and an engaging part positioned between the fixed end part and the pressing part.