Abstract: An apparatus for testing optical components. The apparatus includes a component cavity. The component cavity includes a package portion generally including fit tolerances but otherwise including a similar size and shape of an optical component to be tested. The component cavity further includes an electrical interface portion that can hold electrical interface leads of the optical component. The apparatus further includes an optical fiber interface optically connected to the cavity. The optical fiber interface mates with an optical fiber. The optical fiber is connected optically to the optical component being tested.

Abstract: A wall mount chassis includes circuitry for telecommunications signals. The chassis includes a rear wall mountable to a vertical wall, and first and second sides. Each side includes a hinged cover. Each cover includes an access window for viewing an opposite side of the cover. On one side of the chassis is positioned signal converter cards for converting between optical and electrical signals. On an opposite side of the chassis are positioned one or more electrical power cards providing an access location for power to the circuitry. A CPU card can also be provided on the same side as the power card. An interior of the chassis includes a back plane positioned between the converter cards and the power and CPU cards wherein the back plane is perpendicular to the converter cards and power and CPU cards. A cable spool is positioned adjacent one of the sides for cable management. Cable clips are provided for securably retaining one or more cables adjacent each of the first and second sides.

Abstract: A frame includes a cabinet, a door, and a bracket. The cabinet has an opened front face. The door has a door frame and an inner door section. The door frame is connected to the cabinet for the door to open and close relative to the front face of the cabinet. The bracket connects the inner door section to the door frame such that the inner door section is offset from the front face of the cabinet by a separation distance and covers the front face of the cabinet from the separation distance when the door is closed. The bracket has a sufficient length such that the separation distance between the inner door section and the front face of the cabinet when the door is closed permits fiber optic components to extend through the front face of the cabinet without being compressed by the inner door section.

Abstract: An adjustable tether assembly for a fiber optic distribution cable includes a tether cable and an overmolded housing secured at the end of the tether cable having at least one connector port. The tether assembly is attached to the distribution cable such that the position of the connector port is adjustable along the length of the distribution cable for mitigating differences between the pre-engineered span length distance and the actual span length distance following installation of the distribution cable. A method for mitigating a span length measurement difference in a pre-engineered fiber optic communications network is provided that includes optically connecting an adjustable tether assembly at a mid-span access location of a fiber optic distribution cable and positioning a housing secured at the free end of a tether cable having at least one connector port at a desired location in the network to compensate for the span length measurement difference.

Abstract: An improved mounting clamp adapted to simultaneously secure flat ribbon cables and a number of fluid tubes to a surface and having a locking feature to facilitate assembly and release.

Abstract: Disclosed is a latching apparatus for a pluggable optical transceiver module, which is configured to enable the pluggable optical transceiver module to be plugged or unplugged by pulling the pluggable optical transceiver module. The latching apparatus of the pluggable optical transceiver module connected to an optical connector and electrically connected to a cage assembly includes: a module housing, which is extended in a length direction and used to latch and fix the pluggable optical transceiver module to the cage assembly; and a clip-type latch, which is assembled through the outer circumference of the module housing and used to release the module housing from the cage assembly by horizontally and vertically moving with respect to the length direction in response to pulling of the clip-type latch when the module housing is unplugged from the cage assembly.

Abstract: In order to keep the load on the cables in a cable storage device as light as possible during the process of storing, and furthermore in order to keep the release of the cables as simple as possible, a cable storage device is provided in which at least on one side of the storage device a shoulder of a block is provided, which during storage is pushed down by the cable gripper, and as a result of this during storage the cable or cable end is practically not exposed to any transverse or longitudinal load. In this arrangement the block with the shoulder or shoulders is pushed upward by a spring and in this way ensures reliable clamping action in the storage device.

Abstract: A heat-treatment apparatus according to the present invention comprises a sheet-like heating body, which is bent like a letter “U”, and a heat equalizing plate constituted by a metal plate bonded to a heat generating part of the sheet-like heating body. The heat equalizing plate is bonded to the inner surface of the sheet-like heating body bent like a letter “U”. Alternatively, a fluorocarbon resin is coated on the surface of the heat equalizing plate.

Abstract: A passive temperature-compensated optical grating arrangement includes a housing of low CTE material, with the optical grating stretched across the housing between a first, fixed sidewall and a lever arm, the lever arm also being formed of a low CTE material. An expansion element of high CTE material is attached to the frame and disposed to contact the lever arm, resulting in rotating the lever arm as changes in temperature change the dimensions of the expansion element. By properly sizing the lever arm and the expansion element, changes in grating wavelength as a function of temperature can be compensated for by adjusting the strain applied to the grating as it is pulled or compressed as the lever arm is moved.

Abstract: As means of the present invention, first, on the optical element, a plate-like peripheral edge part which is protruding, while surrounding an effective part having an optical function thereof, outside from the effective part is provided. Furthermore, at a part of the through hole of the holder, a straight cylindrical part is provided. Then, an outer circumference of the peripheral edge part is tightly fitted to an inner circumferential surface of the cylindrical part of the through hole throughout the entire circumference.

Abstract: Disclosed is an apparatus and method for managing and storing excess amounts of fiber-optic cable in a telecom rack. According to one embodiment, the apparatus comprises a fiber-optic cable slack take-up device attached to an arm. The arm is mounted to a supporting member attached to a side of the telecom rack and movable from a first stored position to a second deployed position. Access to the fiber-slack take-up device is provided by situating the arm in the second position. Situating the arm in the stored position places the slack take-up assembly, along with the excess fiber-optic cable, out of the way of operators working in the equipment aisle. Further embodiments provide means for safe-guarding the minimum bend radius of fiber-optic cable being used. The apparatus and method are useful for overcoming the space requirements of in-rack fiber storage systems known in the art.

Abstract: An optical fiber assembly includes: a component defining at least one inlet for optical fibers, an adapter, an optical fiber cable connected to the adapter, and a push-fit connector. The component includes a through-hole for passage of the optical fibers and an associated mating region to engage the push-fit connector. The optical fiber cable connected to the adapter defines a connection region with a predetermined cross-sectional shape for mating with the push-fit connector. The push-fit connector includes a first end, a second end, and a through-passage extending between the first and second ends. The first end is push-fit connected with the mating region. The second end is push-fit connected to the connection region. Optical fibers from the optical fiber cable can be directed through the push-fit connector and the through-hole. A method of installing optical fibers in a joint housing is also disclosed.

Abstract: Various methods, apparatuses, and systems in which an alignment tool holds an optical fiber and an optical alignment component in place during induction soldering. The alignment tool has alignment adjustments for the optical fiber as well as the optical alignment component. An induction soldering station induction solders the optical fiber to the optical alignment component in order to secure the optical fiber to the optical alignment component.

Abstract: A method of connecting an optical fiber to a backplane with a right angle bend mount. The bend mount includes a base and a cover that is pivotably connected to the base by a hinge. A clamp is formed by a first pair of opposed surfaces of the base and cover adjacent the hinge. This clamp fixedly grips a ferrule portion of the optical fiber when the base and the cover are closed together. A second pair of opposed surfaces of the base and cover forms another clamp. This clamp fixedly grips a non-ferrule portion of the optical fiber when the base and the cover are closed together. A bent portion of the optical fiber between the ferrule portion and the gripped non-ferrule portion is disposed in a non-gripping gap between the base and the cover when the base and the cover are closed together.

Abstract: A clip for holding a first section of fiber optic cable to a second section of fiber optic cable is useful in forming a weave pattern in a fiber optic security fence. The fiber optic security fence is constructed by forming a zigzag pattern in a fiber optic cable and attaching this pattern to an existing barrier fence, e.g. a galvanized chain-link fence. Clips are provided to hold portions of the fiber optic cable together in the zigzag pattern. The clips are formed such that, once installed, they are very difficult to remove without cutting, stressing or bending the fiber optic cable sections passing therethrough. Therefore, the clips will prevent intruders from disconnecting the pattern of the fiber optic cable, in order to cut through the barrier fence and gain entry into a secure area.

Abstract: A cable management system includes a first and a second support adapted to be disposed along at least a portion of a first and a second edge of a rack containing a plurality of pieces of equipment. The first support includes a plurality of openings sized and shaped to accept only cables associated with a specific piece of equipment within the rack. The second support includes a generally solid surface such that cables or the like cannot enter the rack from the second side. A plurality of cable arms are removably connected to the supports and are adapted to support the cables disposed through only a single opening in the first support associated with a specific piece of equipment.

Abstract: A cable exit trough is mountable to a lateral trough section either during initial assembly of the cable routing system, or at a later date. The exit trough includes a bracket portion mountable to the top edge of one of the sides of the lateral trough section. Two lead-ins are provided to lead the cable in an upward direction from the lateral trough section to the exit trough. The exit trough includes an exit trough portion extending from the bracket portion upwardly away from the lateral trough section. The exit trough portion includes a convexly curved bottom trough surface, and two convexly curved upstanding sides. The exit trough portion and the lead-ins define a cable pathway from the lateral trough section to an exit point of the exit trough portion which can either lead downwardly relative to the lateral trough section, or horizontally.

Abstract: The purpose of this invention is a device (1) for fixing a fiber (2) comprising a rigid and brittle core (24) surrounded by a mechanically deformable cladding (22), and that can be subjected to at least one mechanical stress. According to the invention, the clamping device comprises concentric jaws (4), each jaw comprising an inner surface (14) composed of a central portion (16) and two end portions (18, 20), the end portions being made so as to prolong the central portion by gradually moving away from the main axis of the device, each comprising at least one part in contact with the mechanically deformable cladding when the jaw occupies a clamped position. Use of this device for fixing an optical fiber and any optical fiber sensor, particularly a Bragg grating optical fiber sensor.

Abstract: The invention relates to a line for processing an optical fiber having first and second ends, the line comprising a support for receiving a reel with the fiber wounded thereon; a de-winder for unwinding the fiber without substantial rotation of the reel; and a processing station for receiving the optical fiber from said de-winder to perform a processing on a portion of the optical fiber. The invention also relates to a method for writing a grating on a fiber having first and second ends, the fiber being wounded on a first reel and being capable of being wounded on a second reel, the method comprising connecting the first end of the fiber to a circulator; connecting said circulator to a source of light and to a first measurement means; de-winding the fiber from the first reel without rotation of the reel; writing a grating on the fiber with a source of radiation; and measuring reflection spectra of the grating with said first measurement means.

Abstract: An optical fiber coupler and manufacturing apparatus and method thereof aim to provide a loading fixture and a clamping device to fabricate 1×4, 2×4 and 4×4 optical fiber couplers, and also improve driving mechanisms and operation of the packaging station and the entire manufacturing equipment. The 1×4 optical fiber coupler fabricated by means of the invention can split an optical signal more evenly and has a higher production yield. The total size of the equipment is smaller and the structure is less complicated, and the construction cost is lower.

Abstract: A device is provided for manipulating a load adapter for terminating an optical fiber in a connector having a ferrule portion and a barrel portion that can include a pre-loaded thermoplastic or thermoset adhesive material. The device comprises a body having a handle, a first arm extending from the handle, and a second arm extending from the handle. The first arm includes a first gripping portion adapted to grip a portion of the load adapter. The second arm includes a second gripping portion that is adapted to grip a portion of an optical fiber cable and that is axially displaced from the first gripping portion by a predetermined distance. At least one of the first and second arms is movable relative to the other arm. A method of terminating an optical fiber in a connector having a ferrule portion and a barrel portion that include a pre-loaded thermoplastic adhesive material is also provided.

Abstract: A disassembling tool includes a holding block having a housing portion for accommodating a plug connector, a slide block, and a handling part for sliding the slide block. The plug connector comprises an outer member and a plug frame and is accommodated in the housing portion of the holding block. When turning a handle of the handling part, the slide block is slidably moved so that projections provided on the slide block release the locking between locking portions of the outer member and locked portions of the plug frame. Following this, contact portions provided on the slide block come into contact with the plug frame so as to push it out of the outer member by a given amount.

Abstract: The polarization state of a light wave is changed by a fiber polanrzation retardation device constructed by a method including employment of a pair of clamping fixtures, and a series of steps including clamping, cleaving, splicing, releasing, clamping, and cleaving, so as to achieve precise optical fiber lengths to achieve a desired polarization retarding device.

Abstract: A fiber distribution frame includes a cabinet which houses fiber optic components. A door frame is connected to the cabinet for the door to close relative to a front face of the cabinet. The door frame surrounds an opened area which exposes the front face when the door is closed for the components to extend out from the cabinet. Brackets connect an inner door section to the door frame such that the door section is offset from the front face by a separation distance when the door is closed. The brackets have a sufficient length such that the separation distance permits the components to extend out of the cabinet and maintain a minimum bend radius without being compressed by the door section when the door is closed. A component router is connected to the cabinet and positioned within the separation distance for directing the components to outside of the cabinet.

Abstract: A fiber optic gasket includes one or more apertures to individually retain optical fibers from one or more fiber optic cards positioned within an enclosure. A slit within the fiber optic gasket associated with each aperture facilitates placement of an optical fiber within an aperture. The fiber optic gasket includes a layer of conductive material for electromagnetic interference protection. When installed in the enclosure, the fiber optic gasket comes in contact with a door that is removably connected to the enclosure. An electro-magnetic interference shield is provided at the interface between the door and the fiber optic gasket. Optical fibers can extend out of the enclosure without causing harmful electromagnetic energy from leaving or entering the enclosure.

Abstract: A system for routing fiber optic jumpers from a fiber optic jumper trough to network equipment includes fiber optic jumper enclosures. Each enclosure has a tubular segment surrounding an interior. The interior of each tubular segment accommodates the placement of fiber optic jumpers within the tubular segment. Some of the enclosures have connector holes in the tubular segments and some of the enclosures have latches connected to ends of the tubular segments. First, second, third, etc., enclosures interconnect with one another to form a router for routing fiber optic jumpers between a fiber optic jumper trough and the network equipment. A latch of the first enclosure connects to a connector hole of the second enclosure in order to interconnect the first and second enclosures to form the router. A post associated with one of the first and second enclosures mounts the router to the network equipment.

Abstract: A cable guide for a cable support system that includes at least one support tray. The cable guide has a base with two base portions disposed in side by side relation. The base portions are adapted to cooperatively engage wires of the support tray(s). A support shaft extends from at least one of the base portions, and a roller is rotatably mounted on the support shaft and engage cables so that they may be turned along a path defined by the cable trays.

Abstract: A light bar includes an optical fiber, a mounting member, and a fiber supporting member. The fiber supporting member is connected to the mounting member. The optical fiber is supported by the fiber supporting member.

Abstract: The fiber optic connector includes a bulkhead connector housing, an expanded beam insert body, ferrules, ball lenses, focal length spacers, and a mating plane adapter. The expanded beam insert body is mounted to the bulkhead connector housing. The ferrules, ball lenses, and focal length spacers are mounted on the expanded beam insert body. The mating plane adapter is mountable to the bulkhead connector housing.

Abstract: Disclosed herein is an angular optical component retention and removal system that reduces the amount of space needed to accommodate fiber optic cables and enables optical components to be quickly and easily inserted, retained, and removed from an optical communications system. The optical component retention and removal system may include a single or plural angular retention sections that retain optical components in an angular orientation through a faceplate. The system may further include an insertion/retention mechanism that enables an optical component to be inserted and removed with a single hand. With the system, fiber optic cables extend at an angle from the optical components, requiring less clearance space in front of the faceplate for provision of the fiber optic cables.

Abstract: A cabling duct (10) comprises an elongate channel (1) having a longitudinal aperture (2) and an elongate lid (7). The opposite edges of the lid releasably engage the opposite edges of the aperture to close the aperture and the lid 7 is integrally connected to the channel by a flexible web (12).

Abstract: A right angle bend mount for bending an optical fiber into the plane of a circuit board. The mount includes a base and a cover that is pivotably connected to the base by a hinge. A clamp is formed by a first pair of opposed surfaces of the base and cover adjacent the hinge. This clamp fixedly grips a ferrule portion of the optical fiber when the base and the cover are closed together. A second pair of opposed surfaces of the base and cover forms another clamp. This clamp fixedly grips a non-ferrule portion of the optical fiber when the base and the cover are closed together. A bent portion of the optical fiber between the ferrule portion and the gripped non-ferrule portion is disposed in a non-gripping gap between the base and the cover when the base and the cover are closed together.

Abstract: An optical fiber bonding scheme provides improved bonding properties and improved lifetime for non-hermetic fiber optic packages such as OSAs. The bonding scheme includes an optical fiber bonded to a substrate surface with an epoxy and a diffusion retarding plate covering the epoxy. The diffusion retarding plate prevents moisture absorption by the top surface of the epoxy and the large footprint of the epoxy provides a long diffusion path which produces a lower water concentration gradient within the epoxy, restricts lateral diffusion of absorbed water molecules within the epoxy, and produces an extremely saturation resistant epoxy. The diffusion retarding plate may further include legs that bound opposed sides of the epoxy providing further saturation resistance.

Abstract: A bend radius control member for controlling the bend radius of an optical fiber cable including a deformation resistant heat shrunk outer jacket wrapped around the optical fiber cable. The heat shrunk outer jacket has a desired bend radius curvature.

Abstract: A positioning and measuring station for photoelectric elements includes a base, a platen, a five-axis driving module and a retaining member. The platen is for holding a measuring object. The five-axis driving module is located between the base and the platen for driving the platen axially with respect to X, Y and Z axes, or rotatable on a plane or tiltable against a plane relative to the base. The retaining member is located on one side of the platen to dynamically adjust the extending distance of the platen so that the measuring object may be leaned thereon for alignment to define the holding position of the measuring object on the platen.

Abstract: An automatic optical-fiber cutter has a main lid, an auxiliary lid interlockingly opened and closed by the opening/closing operation of the main lid, and a slider provided with an edged tool. An optical fiber is pressed at two positions by the main lid and the auxiliary lid interlockingly closed by the closing operation of the main lid. At the same time, the slider moves synchronously with the main lid, and the optical fiber is cut by the edged tool. As soon as the auxiliary lid is opened synchronously with the opening operation of the main lid, the slider is returned to an initial position.

Abstract: A method and modular mechanism are provided for protecting fiber optic cables. The modular mechanism includes an inner member for receiving the fiber optic cable, and an outer container receiving and retaining the inner member, such as, an inner tube and outer tube. The inner member and the outer container have predefined shapes to create an interference with each other, limiting a bend radius of the fiber optic cable.

Abstract: An optoelectric module includes a housing having a front face with an opening designed to receive an optical transceiver nestingly engaged therein. The optoelectric module includes a discontinuity in an outer surface positioned to cooperate with a spring latch formed in an inner surface of the cage to latch the module in a fully nested orientation within the cage. An actuator is mounted on an outer surface of the housing and movable from an orientation in which the housing is latched in the cage to an orientation in which the actuator engages the spring latch and disengages it from the discontinuity. A bail latch is pivotally mounted for movement between a stored position and a module removal position and is engaged with the actuator to move from the stored position to the module removal position with movement of the actuator from the latched orientation to the delatched orientation.

Abstract: A lightweight flexible breakout device supports a plurality of single optical fibers, a portion of which are ribbonized. The breakout device generally includes a sleeve having a passageway therethrough and an input holder and an output holder positioned within the passageway. The input holder supports the ribbonized portion of the fibers and the output holder supports the plurality of single optical fibers. Each single optical fiber extends through a fiber jacket that is supported by the output holder. A sealant is provided within the housing between the input holder and the output holder and provides support for the fibers within the passageway of the sleeve.

Abstract: A coupler for interfacing a light source, such as a laser, and a fiber optic cable is disclosed. The coupler includes a slide mount having a channel that is adapted to receive optical fibers. The channel extends from a proximal end of the slide mount to a distal end of the slide mount. The proximal end of the slide mount is adapted to fit into an aperture of the light source and the distal end of the slide mount is adapted to transmit light to the fiber optic cable. The coupler also includes a clamp that is mounted on the slide mount adjacent to its proximal end. The clamp covers at least a portion of the channel, thereby securing the optical fibers within the channel without the use of an adhesive.

Abstract: After a wide-band DCF is wound around a bobbin to form an optical fiber coil 32, the latter is removed from the bobbin and placed into a bundle state (the state where the increase in transmission loss in the wavelength band of 1.55 ?m caused by distortions in winding is reduced by 0.1 dB/km or more) released from distortions in winding. A resin 42 is used as a coil-tidying member so as to secure the optical fiber coil 32 to a storage case 40 at four positions. Both ends of the optical fiber coil 32 are connected to pigtail fibers at fusion-splicing parts 44, respectively. Even when the storage case 40 is closed with a lid after the optical fiber coil 32 is secured to the storage case 40 with the resin 42, there remain interstices within the bundle of the optical fiber coil 32 and a space between the optical fiber coil 32 and the storage case 40. As a result, even when the optical fiber coil 32 in a bundle state is accommodated in the storage case 40, transmission loss and the like would not increase.

Abstract: A device for reinforcing an optical fiber fusion spliced part a heating mechanism for heating a protective member and optical fiber clamping mechanisms which are arranged at both sides of the heating mechanism. Relative height positions of the heating mechanism and the optical fiber clamping mechanisms are configured to be changeable.

Abstract: The invention pertains to tools for removing connectors from high-density fiber optic applications, and more particularly to a tool having pivotable arms with cooperative gripping ends for facilitating the gripping, removal, and insertion of fiber optic connectors into appropriate ports or adapters.

Abstract: A method of integrating an optoelectronic device, for example a vertical cavity surface emitting laser, onto the electronic substrate of a parallel optical transceiver package by positioning and maintaining the exact relative alignment of the optoelectronic device relative to the electronic substrate for application of adhesive and curing. The method includes the utilization of a multi-piece fixture which clamps the elements into position and maintains position throughout the curing process. Alternatively, the fixture can comprise a unitary assembly for clamping the elements into position and maintaining their position throughout the curing process.

Abstract: A device and a method of temperature compensating are disclosed. The device and method are employed for temperature compensation of a section of optical fiber. The device and method are useful for limiting any change in optical properties of the section of optical fiber or optical structures that can be corrected by changing the linear dimension accordingly. Such optical properties include the characteristic wavelengths of FBGs, Fabry-Perot cavities, and the like. The device includes a composite plate comprising plural fiber laminae, each of which has a designed orientation, and having a specific temperature-dependent characteristic in a direction for compensating an optical component positioned thereon having a temperature-dependent deformation, wherein said specific temperature-dependent characteristic is determined by said designed orientations of said plural fiber laminae.

Abstract: In an optical fiber array, an optical fiber, a bundle of optical fibers or an optical fiber ribbon is mounted on an array substrate with a V-groove or V-grooves. A bare fiber portion in which a fiber coating is removed is placed in the V-groove, pressed by a presser member 6 and bonded by adhesives. At the front end, the fiber(s) is/are accurately positioned to connect to optical components or PLCs. The bare fiber portion contains a spliced portion of the dissimilar optical fibers having different mode field diameters and a mode field converting portion. The spliced portion of the dissimilar optical fibers is mounted on the array substrate. A flexible protection member is provided in the fiber coating portion extending over a rear edge of the array substrate. The optical fiber is bonded onto the array substrate, employing three kinds of adhesives that are different in the Young's modulus after hardening and the viscosity before hardening.

Abstract: An optical waveguide member is inserted into a tubular member. The tubular member is elongated with heating and fusion-bonded to the optical waveguide member. Thus, a formed body is obtained. The formed body is cut into a predetermined length to obtain an optical waveguide member. The tubular member is preferably made of a crystallized glass with crystals deposited therein at least in the state of the formed body.

Abstract: A factory prepared fiber optic distribution cable has at least one predetermined access location for providing access to at least one pre-connectorized optical fiber. The fiber optic distribution cable includes at least one preterminated optical fiber withdrawn from a tubular body at the access location, a connector attached to the preterminated optical fiber, a transition piece for transitioning the preterminated optical fiber from the tubular body into a protective tube, and a protective shell encapsulating the access location for protecting the pre-connectorized optical fiber.

Abstract: An optical connection closure has at least one connector port located within an external wall of the closure for receiving a connectorized optical fiber of a distribution cable on the inside of the closure and a pre-connectorized fiber optic drop cable on the outside of the closure. The closure includes a base, a cover affixed to the base and movable between a closed position and an opened position, and an end wall that defines at least a portion of at least one cable opening for receiving the distribution cable in a butt-type or a through-type closure configuration. The base and the cover define an interior cavity that optionally contains a splice tray for interconnecting the optical fiber of the distribution cable with a pigtail to create the connectorized optical fiber. The connector port may be located within an end wall, a bottom wall or a top wall of the closure.

Abstract: Described is a fiber management system having an internal fiber clip for segregating fiber optic cables in the enclosure and an entry fiber clip for guiding fiber optic cables bundled by the internal fiber clip to a telecommunications system external to the enclosure. The internal fiber clip includes a fiber guide portion and a locking mechanism connected to one end of the fiber guide portion for attaching the internal fiber clip to a wall of the enclosure. The locking mechanism has a resilient fin and a stem with a tab. The tab and the resilient fin both extend laterally away from the stem. The resilient fin urges against a first side of the wall and the tab is urged against an opposite side of the wall when the internal fiber clip is rotated with the tab fully inserted through an opening in the wall.