Abstract: A optical fiber connector cord capable of being detachably attached to a receptacle fixed to an optical apparatus includes an optical fiber having at least one hole which extends along an optical axis, a plug having a fiber hole through which the optical fiber extends and which is capable of being fitted into the receptacle, a first sealing member which is provided on an outer peripheral surface of the plug and which seals a gap between the plug and the receptacle along the outer periphery of the plug, and a second sealing member which seals a gap between an inner surface of the plug's fiber hole and the optical fiber along the outer periphery of the optical fiber, so that holes in the optical fiber are effectively prevented from communicating with the atmosphere. In addition, an optical coupling set includes the optical fiber connector cord and the receptacle.

Abstract: A fiber optic stub fiber connector for reversibly and nondestructively terminating an inserted field fiber having a buffer over at least a portion thereof. The connector includes a housing and a ferrule including a stub fiber disposed within and extending from a bore through the ferrule. The ferrule is generally at least partially disposed within and supported by the housing. The connector further includes a reversible actuator for reversibly and nondestructively terminating the inserted field fiber to the stub fiber. The reversible actuator includes a buffer clamp for engaging with the buffer to simultaneously provide reversible and nondestructive strain relief to the terminated field fiber.

Abstract: A local injection and detection system assesses the attenuation of light propagating from a first optical fiber to a second optical fiber associated therewith. The system comprises a light injector, a light detector, a driver to energize a light source in the injector, and a receiver. Light from the light source is injected into the first optical fiber and propagates therethrough. A portion of the propagating light in the second fiber is extracted onto a light responsive element in the detector. The system is particularly adapted for use in a system for splicing optical fibers, the system minimizing the insertion loss of the joint by optimally aligning the fibers prior to fusing them. In addition, the insertion loss of a joint can be inferred by comparing light attenuation before and after the joint is fused. The present system is compact and low in profile, enabling it to be used with a fusion splicer that operates with minimal clearance to adjacent equipment and structures.

Abstract: Provided in the present specification is an optical connector boot including: an attachment portion attached to a connector ferrule, and a cable passing portion through which a flat type optical fiber cable is passed, in which there is provided at one longitudinal end of the cable passing portion an inlet for introducing the flat type optical fiber cable into the cable passing portion, in which there is provided in the attachment portion an outlet for drawing out the flat type optical fiber cable inserted into the cable passing portion, and in which the inlet and the outlet differ from each other in orientation so that the flat type optical fiber cable inserted into the cable passing portion through the inlet may be twisted around its axis within the cable passing portion by drawing it out of the outlet. According to an optical connector of the present invention, a flat type optical fiber cable inserted into and secured in a ferrule is covered with the optical connector boot.

Abstract: A preferred embodiment of a guide boot for a fiber-optic cable mechanically coupled to a connector comprises a mating portion having an interior surface defining a passage for receiving a portion of the connector and the fiber-optic cable, and a plurality of ribs formed on the interior surface and extending along at least a portion of a length of the mating portion. A preferred embodiment of a guide boot also comprises a body portion adjoining the mating portion and having an interior surface that defines a passage for receiving the fiber-optic cable. The interior surface of the body portion is curved so that the body portion bends the fiber-optic cable.

Abstract: A fiber optic coupler comprises a metal tube and a clear hollow silicone insert, with a tapered region including a first set of grabbers and a constant area region including a second set of grabbers. A tapered optical element is coupled to an optical fiber, when both the tapered optical element and the optical fiber are mechanically secured by crimping the metal tube and the silicone insert in the proximity of the first and second sets of grabbers, as by using a standard crimper tool.

Abstract: The outer periphery of the code leading end portion of the rear end portion of a connector housing is formed in a regular quadrilateral shape, while the inner periphery of the mounting end portion of a code hold boot member is formed in a regular quadrilateral shape which allows the mounting end portion inner periphery to be fitted with the outer surfaces of the code draw-out end portion. A plurality of projection-shaped engaging portions are formed in the respective composing surfaces of the outer periphery of the code leading end portion and, a plurality of engaging portions are formed in the respective composing surfaces of the inner periphery of the mounting end portion. The mounting end portion of the code hold boot member can be fitted with the outer surfaces of the code leading end portion in four different postures leading in upper, lower, right and left directions.

Abstract: A connector is provided for coupling optic fibers. The connector has a mating end for mating to another connector and a cable end for connection to a fiber optic cable having a jacket. The connector comprises a mating end outer shell, a ferrule, and a cable end outer shell. The mating end outer shell has a cavity for receiving an optic fiber of the cable, the cavity defining an axis through the connector. The ferrule is disposed in the cavity of the mating end outer shell. The cable end outer shell has a body portion and an extension member and is coupled to the mating end outer shell. The extension member extends from body portion, thereby providing an offset for deforming the jacket when the jacket is crimped to the connector.

Abstract: A connector is provided for coupling optic fibers. The connector has a mating end for mating to another connector and a cable end for connection to a fiber optic cable having a jacket. The connector comprises a mating end outer shell, a ferrule, a cable end outer shell, and a coupling sleeve. The mating end outer shell has a cavity for receiving an optic fiber of the cable, the cavity defining an axis through the connector. The ferrule is disposed in the cavity of the mating end outer shell. The cable end outer shell has a body portion and an extension member and is coupled to the mating end outer shell. The coupling sleeve is slidably mounted to the mating end outer shell. The coupling sleeve comprising a first piece and a second piece mechanically coupled together.

Abstract: There is provided a packaging unit for an optical fiber array using a planar lightwave circuit (PLC). An optical fiber array is fixed within a housing. The housing has first and second slots formed to face each other on the side periphery, and each of the first and second slots has opened ends to make the inner and outer walls of the housing communicate with each other. An optical fiber of the optical fiber array is inserted through first and second boots and then the first and second boots are inserted in the first and second slots of the housing.

Abstract: A connector system for terminating an optical fiber cable having a protective outer jacket. The system includes a connector plug and a crimp insert having an axial bore. A distal end of the insert is formed to be joined to a proximal end of the connector plug. A first portion of the insert bore has a diameter corresponding to an outside diameter of the cable jacket. A second portion of the insert bore has a diameter corresponding to an outer diameter of an unjacketed end of the cable. The insert deforms when crimped at axially spaced positions on its periphery, correspondonding to the first and the second portions of the insert bore. Thus, both the outer jacket and the unjacketed end of the cable are restrained from axial movement with respect to the insert and connector plug.

Abstract: A precise fiber array is formed using a chuck to tightly hold as an array with hexagonal packing a group of precision ferrules into ones of which is inserted and bonded a fiber end. The bonding is typically performed by gluing the fiber into the ferrule. The ferrules may also be bonded to each other. Once the ferrules are bonded together, the chuck may be removed. The terminating end of the fibers may be polished. Alternatively, cleaved terminating fiber ends may be employed, with the various terminating ends being coordinated, e.g., by an optical flat. The ferrules may have a tip and a conical entrance. The chuck may hold the ferrules in a straight orientation. The fiber terminating faces of all of the ferrules may be substantially coplanar. The ferrules may be arranged in a hexagonal configuration.

Abstract: An optical fiber connector includes a first elongated portion with a first conical head and a first through hole. A second elongated portion has a second through hole defined to correspond to and communicate with the first through hole of the first elongated portion after the first distal end of the second elongated portion is received in the first elongated portion and a second conical head. Two hollow retaining elements respectively have a tapered through hole to correspond to the first and second conical head so that after the first conical head and the second conical head are respectively in a corresponding one of the two retaining elements, a diameter of the first through hole and a diameter of the second through hole are reduced so that a filament of an optical fiber is able to be securely retained inside the first and second through holes.

Abstract: A two-piece ferrule assembly for terminating and mounting the end of an optical fiber in a threaded female socket. The assembly has an inner ferrule member with a channel for receiving and mounting the end of an optical fiber from which the jacket has been removed, and an outer ferrule member mounted to rotate on a rear portion of the inner ferrule member and having an external thread mating with the female socket. The outer ferrule member extends over the fiber jacket, and includes a rear clamping portion adapted to engage at least one of the fiber jacket and the inner ferrule member to orthogonally clamp the fiber jacket behind its connection with the inner ferrule member as the outer ferrule member is threaded into the socket.

Abstract: A connector is provided for coupling optic fibers. The connector has a mating end for mating to another connector and a cable end for connection to a fiber optic cable having a jacket. The connector comprises a mating end outer shell, a ferrule, and a cable end outer shell. The mating end outer shell has a cavity for receiving an optic fiber of the cable, the cavity defining an axis through the connector. The ferrule is disposed in the cavity of the mating end outer shell. The cable end outer shell has a body portion and an extension member and is coupled to the mating end outer shell. The extension member extends from body portion, thereby providing an offset for deforming the jacket when the jacket is crimped to the connector.

Abstract: A connector is provided for coupling optic fibers. The connector has a mating end for mating to another connector and a cable end for connection to a fiber optic cable having a jacket. The connector comprises a mating end outer shell, a ferrule, and a cable end outer shell. The mating end outer shell has a cavity for receiving an optic fiber of the cable, the cavity defining an axis through the connector. The ferrule is disposed in the cavity of the mating end outer shell. The cable end outer shell has a body portion and an extension member and is coupled to the mating end outer shell. The extension member extends from body portion, thereby providing an offset for deforming the jacket when the jacket is crimped to the connector.

Abstract: A strain relief apparatus which is especially useful with a standard fiber optic connector (10) having a cylinder backshell (12) with a pair of rearwardly-projecting arms (20, 22) that hold circular clamp elements (24, 26) to clamp to a circular optical fiber cable, which facilitates clamping to a fiber optic flat ribbon cable, or flat cable (40). A flat cable adaptor (54) has a groove (82) with front, rear, and middle groove portions (84, 86, 90) each of rectangular cross-section for receiving the flat cable. A jacket (94) of compressible material of about one inch length is wrapped around the flat cable and lies in the groove middle portion. Only the jacketed part of the flat cable is firmly pressed against the bottom wall (114) of the groove to clamp the flat cable to the adaptor. In one adaptor device, two identical adaptors (52, 54) are used, which form a circular recess (62) that receives the clamp elements.

Abstract: A strain relief connector, including an optical fiber, a cover enclosing the optical fiber. The cover has an inner surface, an outer surface, a first end and a second end, the first end having a tapered portion that extends radially outwardly. A sleeve surrounds the cover and has a first inner volume and a first interior shoulder, a portion of the outer surface of the tapered portion abuts the first interior shoulder. The sleeve and the cover are simultaneously compressed forming a compressed portion. The cover and the sleeve are deformed such that the cover substantially fills the first inner volume of the sleeve.

Abstract: Detent devices for optical fibre members have an outer casing member with a tapered aperture in which an inner engagement member is slidably fitted. A strength member of the optical fibre member received in the inner engagement member can be wrapped back around a boss of the inner engagement member and is clamped by the slidable engagement member when the optical fibre member is pulled. Thus axial strain relief is provided.

Abstract: A connector is provided for coupling optic fibers. The connector has a mating end for mating to another connector and a cable end for connection to a fiber optic cable having a jacket. The connector comprises a mating end outer shell, a ferrule, and a cable end outer shell. The mating end outer shell has a cavity for receiving an optic fiber of the cable, the cavity defining an axis through the connector. The ferrule is disposed in the cavity of the mating end outer shell. The cable end outer shell has a body portion and an extension member and is coupled to the mating end outer shell. The extension member extends from body portion, thereby providing an offset for deforming the jacket when the jacket is crimped to the connector.

Abstract: A connector is provided for coupling optic fibers. The connector has a mating end for mating to another connector and a cable end for connection to a fiber optic cable having a jacket. The connector comprises a mating end outer shell, a ferrule, a cable end outer shell, and a coupling sleeve. The mating end outer shell has a cavity for receiving an optic fiber of the cable, the cavity defining an axis through the connector. The ferrule is disposed in the cavity of the mating end outer shell. The cable end outer shell has a body portion and an extension member and is coupled to the mating end outer shell. The coupling sleeve is slidably mounted to the mating end outer shell. The coupling sleeve comprising a first piece and a second piece mechanically coupled together.

Abstract: An optical fiber connector for a fiber optic ribbon cable includes a guide boot and a termination plug. The guide boot comprises an outer sleeve or body that defines an inner passageway, and a first end for receiving the cable and a termination port. The body has an inner passageway for guiding, bending, and/or twisting the cable and is angled at a desired angle. The inner passageway is preferably tapered or otherwise spiraled to control the location and amount of circumferential rotation (twisting) of the cable. Alternately, the cable can be inserted into and through the guide boot without any twisting, and then twisted or otherwise rotated when the guide boot is connected with the termination plug. Locking tabs are preferably provided in an end of the termination plug to engage the termination port, thereby holding the guide boot in connection with the termination plug.

Abstract: A strain relief connector for a fiber optic cable has an optical fiber enclosed within a cover having an outer diameter. A relatively long sleeve surrounds the cover and has an inner surface at an inner diameter, the inner diameter being substantially larger than the outer diameter of the cover. Portions of the sleeve and the fiber optic cable are compressed by a die, forming compressed portions having widths substantially larger than their heights and causing the inner surface of the sleeve to frictionally engage the outer surface of the cover layer and the inner surface of the cover to fictionally engage the outer surface of the optical fiber enclosed therein. The length of the sleeve and the configuration of the compressed portion allow a relatively high area of frictional resistance between the buffer layer and the sleeve.

Abstract: An optical connector in which the operation for inserting an optical fiber cord can be effected easily, and the optical fiber cord can be positively prevented from being abruptly bent. A bending guide portion of an arcuate shape is formed integrally with a housing body portion for receiving and holding an end portion of an optical fiber cord. The bending guide portion has a generally tubular shape, and its inner peripheral portion forms an inner peripheral bending limitation portion for limiting a minimum value of a bend radius of the optical fiber cord, while its outer peripheral side is open over an entire length thereof in a peripheral direction thereof. In place of the outer peripheral side, one side and the other side of the bending guide portion may be open over an entire length thereof in a peripheral direction thereof.

Abstract: The present invention is a fiber optic connection system including a fiber optic plug adapted to mate and lock with a fiber optic connector. The plug includes a housing and mated insert that cooperate to position and secure the plug pre-assemblies with respect to the plug and to structurally affix the cable strengthener to the plug.

Abstract: In a plug arrangement for optical waveguides, there is mounted on the end of the cable accommodating the optical waveguide a cable fixing sleeve that is bonded to the outside of the cable. The ends of the plastic fibers of the optical waveguide cladding are brought out of the cable end and laid back onto the external surface of the bonded-on cable fixing sleeve and a further sleeve being pushed onto said cable fixing sleeve, with the plastic fibers of the optical waveguide cladding being clamped and bonded between the two sleeves.

Abstract: A premise cable having a plurality of inorganic fibers for protecting and suspending a plurality of optical fibers within a polymer jacket. The inorganic fibers, preferably fiberglass fibers, do not generate smoke or fire and thus offer an improvement over traditional polyaramid fibers used as reinforcement materials in premise cables. A sizing composition is applied to the inorganic fibers to prevent ribbonization of the inorganic fibers, thereby preventing attenuation of the optical fibers caused by such a ribbonization and also allowing a uniform distribution of fiberglass fibers around the optical fibers to further protect the optical fibers.

Abstract: A fiber optic cable guide is disclosed for holding fiber optic cable in a bend without violating the minimum bend radius. The guide is a removably attachable to the fiber optic cable. Duplex embodiments and related methods of use are also disclosed.

Abstract: An optical waveguide module attachment includes a cushioning element and a body. The cushioning element is configured for positioning about at least one optical waveguide, thereby forming a clamping portion for protecting the at least one optical waveguide from clamping forces applied by the body. The body has a passage therethrough with predetermined dimensions for passing a clamping portion of at least one optical waveguide therein. The body can be crimped thereby applying clamping forces to the clamping portion for securing the at least one optical fiber thereto. In other embodiments, the clamping forces can be applied to the body using a clamping portion or element.

Abstract: A junction box for a single-tube cable, and particularly an optical fiber cable for the connection of one or several wires or fibers of the cable to one or several wires or fibers of another cable. The box has a hollow support (3) suitable for a tensioned connected cable crossing (C) and a spacer (2) to hold the casing of the axially cut cable spread inside the hollow support (3) to free the cable wires or fibers (F). Application to the installation and maintenance of cable networks is also described.

Abstract: A housing of a fiber optic connector such as an MTRJ connector has a greater surface area and ridges for improved handling and grasping. A door is provided on a fiber optic connector socket to block light leakage from the socket. The door is compact and does not interfere with neighboring devices while closed. The connector has a housing that centers the ferrule and keeps it in a position for precise alignment with the opposing ferrule. A pin retainer is designed to allow insertion and removal of alignment pins in the field without the need for removing the connector from the fiber optic, so that male connectors can be connected to female connectors and vice-versa.

Abstract: The invention is directed to a crimp plug having a front portion, a center portion, and a securing portion. A conductor receiving cavity extends from the front e into the center portion. A stop shoulder within the center portion provides transition from the conductor receiving cavity to a plurality of conductor receiving passageway extending to a rear end. Each conductor receiving passageway serves to properly position the conductors while the stop shoulder serves to control the insertion length. A securing portion extends from the center portion and provides for securing of the cable.

Abstract: A strain relief assembly is provided for use in management of optical fibers that enter and exit the enclosure walls of optical fiber components, such as optical amplifiers, etc. The strain relief assembly includes a rigid plastic sleeve, and an elastomeric boot. The boot includes a main body portion having retaining shoulders located on opposing sides of a retaining channel, and further includes a cone-shaped tip portion to guide and support the optical fiber as it exits the wall of the enclosure. The retaining shoulders and retaining channel cooperate to lock the boot into a U-shaped opening in a wall of an enclosure. The main body portion of the boot includes an axial opening for receiving the sleeve and the cone-shaped tip portion includes an co-axially extending bore for receiving the optical fiber. The sleeve is a cylindrical rigid tube configured for receiving the optical fiber therethrough. In use, the fiber is fixed in place inside the sleeve with a UV curable resin.

Abstract: A fixing component for fixing an optical fiber cord to an optical connector in a press-fitting manner by compression deformation is formed with a connected combination of a tension member fixing portion for fixing, in a press-fitting manner, a tension member of the optical fiber cord put on an outer peripheral surface of the optical connector to the outer peripheral surface and a sheath fixing portion for fixing, in a press-fitting manner, a sheath of the cord put on the outer peripheral surface of the connector to the outer peripheral surface, and has a slit formed between the tension member fixing portion and the sheath fixing portion, and adapted to absorb compressed and deformed part of either or both of the two fixing portions.

Abstract: A novel optical fiber module attachment is provided. The module attachment has a crimp assembly and a fiber crimp tube disposed therein. The tube is crimped or otherwise fixedly attached to the core of the fiber optic cable. The fiber crimp tube has a shoulder that is fixedly captured within the crimp assembly, such that the core of the fiber optic cable does not exhibit movement relative to the connector. In accordance to another aspect of the invention, the module attachment is a fiber crimp tube having at least one shoulder thereon. The fiber crimp tube is crimped or otherwise attached to the fiber optic cable. The shoulder is fixedly received in receiving ports on an optical device. A heat shrink tube is optionally provided to connect an end of the tubular body to the cable to minimize the bend radius. The fiber crimp tube may also have an inner compression sleeve disposed between the fiber crimp tube and the core of the cable.

Abstract: A housing of a fiber optic connector such as an MT-RJ connector has a greater surface area and ridges for improved handling and grasping. A door is provided on a fiber optic connector socket to block light leakage from the socket. The door is compact and does not interfere with neighboring devices while closed. The connector has a housing that centers the ferrule and keeps it in a position for precise alignment with the opposing ferrule. A pin retainer is designed to allow insertion and removal of alignment pins in the field without the need for removing the connector from the fiber optic, so that male connectors can be connected to female connectors and vice-versa.

Abstract: The invention relates to a system for coupling of a lightwave conductor cable with many lightwave conductors (8) on coupling elements in a housing, which contains a clamping element for the end of the lightwave conductor cable and a number of coupling elements (9), which correspond with the number of the lightwave conductors to be plugged. According to the invention the end of the lightwave conductor cable is fixable by the clamping element on a chassis part or clamping flange (2) of the housing, and the lightwave conductors, which extend out from the cable end, are surrounded with a flexible cable sleeve. The ends of the cable sleeves, which are faced toward the cable end, are connected together and anchored in the clamping element. (FIG.

Abstract: A fiber optic connector utilizing a fiber array ferrule 20 has a housing 1 with an internal geometry that provides transverse alignment of the ferrule relative to the housing 1 when the connector is in an unmated condition and permits transverse displacement of the ferrule relative to the housing when the connector is in a mated condition. This structure advantageously permits proper pre-mating alignment with a mating connector ferrule or other optical device while also improving isolation of the ferrule from external loads imposed on the housing 1 when the connector is in a mated condition.

Abstract: An optical fiber connector for connecting an optical fiber cable to a ferrule comprises a tubular body having a first end portion for connection to a peripheral surface of a ferrule, a second end portion for connection to a peripheral surface of an optical fiber cable, a step portion interconnecting the first end portion to the second end portion, and a clamping portion for clamping the optical fiber cable to the ferrule. The clamping portion extends inwardly from a terminal end of the second end portion towards the central axis of the tubular body but does not project lengthwise from the terminal end of the second end portion in the direction of the central axis. The first end portion, the second end portion, the step portion and the clamping portion of the tubular body have approximately the same wall thickness.

Abstract: The present disclosure relates to a fiber optic device including a connector housing including a front housing piece, an intermediate housing piece, and a rear housing piece that is non-unitarily connected to the intermediate housing piece. The rear housing piece and the intermediate housing piece define passages that are in general alignment with one another. The fiber optic device also includes a hub positioned within the connector housing. The hub includes a passage that aligns generally with the passage of the intermediate housing piece. The hub is spring biased toward a front end of the connector housing. The fiber optic device further includes a ferrule connected to the hub, and a fiber optic cable. The ferrule defines a passage that extends in general axial alignment with the passage of the hub. A fiber portion of the fiber optic cable is adhesively bonded within the passage of the ferrule. A buffered portion of the fiber optic cable extends through the passage of the rear housing piece.

Abstract: A strain relief connector for a fiber optic cable has an optical fiber enclosed within a cover having an outer diameter. A relatively long sleeve surrounds the cover and has an inner surface at an inner diameter, the inner diameter being substantially larger than the outer diameter of the cover. Portions of the sleeve and the fiber optic cable are compressed by a die, forming compressed portions having widths substantially larger than their heights and causing the inner surface of the sleeve to frictionally engage the outer surface of the cover layer and the inner surface of the cover to fictionally engage the outer surface of the optical fiber enclosed therein. The length of the sleeve and the configuration of the compressed portion allow a relatively high area of frictional resistance between the buffer layer and the sleeve.

Abstract: A connector boot for attachment to a flanged BTW-LC connector has extending at an angle therefrom a trigger member. The trigger on the boot acts as an anti-snag device and makes removal of the connector easier. The boot has a bore extending therethrough having an undercut portion for gripping the connector flange, and at least one key in the bore for mating with slots in the flange of the connector for preventing the boot and trigger from turning relative to the connector. In an embodiment of the invention, a second boot parallel to the first boot is joined thereto by a web, and a trigger member extends from the web at an angle to the boots.

Abstract: A fixing component for fixing an optical fiber cord to an optical connector in a press-fitting manner by compression deformation is formed with a connected combination of a tension member fixing portion for fixing, in a press-fitting manner, a tension member of the optical fiber cord put on an outer peripheral surface of the optical connector to the outer peripheral surface and a sheath fixing portion for fixing, in a press-fitting manner, a sheath of the cord put on the outer peripheral surface of the connector to the outer peripheral surface, and has a slit formed between the tension member fixing portion and the sheath fixing portion, and adapted to absorb compressed and deformed part of either or both of the two fixing portions.

Abstract: A fiber optic shield connector and enclosure are adapted to provide reliable, weather resistant ground connections to the conductive shield of a fiber optic cable. The connector comprises two steel clamp sections which form a rigid, conductive assembly surrounding the fiber optic cable. A plurality of sharpened, hollow grounding screws thread through the clamp sections to pierce the cable jacket and establish electrical contact with the cable shield. A gel-filled, two-part molded plastic enclosure surrounds the assembled cable and connector to provide protection from the environment.

Abstract: An optical transmission component and a method of making the same in which one or a plurality of optical fibers 1 are fixed to a main body 3 of the optical transmission component with one end face of each optical fiber being exposed, and thus exposed end face is used as a connecting end face to be optically connected to another optical transmission component. The coating 1b of each optical fiber 1 is removed, so as to expose a predetermined length of an optical fiber 1a. An end face 1c of thus exposed optical fiber is processed by spark discharge processing in a short period of time, such that at least the front end of a core portion projects from the front end of its cladding portion. Thus processed optical fiber 1 is inserted into the main body and fixed thereto with an adhesive 5, while a predetermined pressure is being added along the optical axis of each optical fiber 1 from the end face 1c side.

Abstract: A connector for an optical fiber includes a fiber holder for positionally aligning and retaining the end of the optical fiber and a clamp for selectively clamping the optical fiber against movement in and relative to the connector. The connector is insertable into a coupler for optically coupling the optical fiber with another optical fiber held in the connector or with an optical device.

Abstract: A creep-resistant optical fiber attachment includes an optical fiber 10, having a cladding 12 and a core 14, having a variation region 16 (expanded or recessed) of an outer dimension on of the cladding and a structure, such as a ferrule 30, disposed against least a portion of the variation region 16. The fiber 10 is held in tension against the ferrule and the ferrule 30 has a size and shape that mechanically locks the ferrule 30 to the variation 16, thereby holding the fiber 10 in tension against the ferrule 30 with minimal relative movement (or creep) in at least one axail direction between the fiber 10 and the ferrule 30. The ferrule 30 may be attached to or part of a larger structure, such as a housing. The variation 16 and the ferrule 30 may have various different shapes and sizes. There may also be a buffer layer 18 between the cladding 12 and the ferrule 30 to protect the fiber 10 and/or to help secure the ferrule 30 to the fiber 10 to minimize creep.

Abstract: A buffering sleeve (46) is slid onto an outer end portion of an optical fiber cable (12) that includes an optical fiber surrounded by a buffer covering (16). The buffering sleeve (46) is crimped onto the buffer covering (16). A bared length of optical fiber (14) extends endwise outwardly from the buffering sleeve (46), into and through a center opening (40) in a ferrule (38) that is at the outer end of a connector fitting (10). Connector fitting (10) includes an inwardly opening inner socket (34) that snugly receives the buffer sleeve (46). The inner end portion of the inner socket (34) is crimped onto an inner end portion (52) of the buffering sleeve (46). The bared optical fiber (14) projects forwardly through center opening (40) in ferrule (38). Outwardly of the ferrule (38), the optical fiber (14) is cleaved and polished, flush with the outer end (39) of the ferrule (38).

Abstract: The present invention provides an apparatus and method for jointing two opposed ends of fiber optic cables to result in a hermetic cable joint. Two fiber optic cables are cut to expose each wire strand of each cable, and a tube joint is formed by joining the optical fibers of the two cables such that the tube joint is located under the wire strand of the first cable. A tapered crimp sleeve is applied over the exposed inner layer and outer layer of each of the wire strands of the two cables, the inner layer and outer layer forming stepped portions within the crimp sleeve. The crimp sleeve tapers outwardly from a central portion, such that its two ends are of a larger diameter than the central portion of the crimp sleeve. When the inner layer and outer layer of each wire strand is crimped, the crimp sleeve attains approximately the same diameter along its length.

Abstract: A fiber optic connector system is made up of a socket contact and a pin contact arranged to be installed in a cylindrical multiple contact connector, each contact including a fiber optic connector that has been terminated to a ribbon cable and captured between two halves of a cylindrical contact body, the socket contact being spring loaded to provide an engagement force between the two contacts when assembled into a housing. The pin and socket contacts may be installed in a wide variety of connector housings configured to receive cylindrical contacts, including the MIL-C-38999 family of connector shells, utilizing existing coupling and mounting arrangements, with the optional addition in the plug connector of a torsion spring biased shutter arranged to shield the ends of the fibers before coupling, and which is moved by a cam surface in the receptacle connector of the fiber optic connector system to uncover the ends of the fibers during coupling.