Abstract: A hollow connector having a first portion to receive a fiber optics cable and to position end extent of the cable relative to the connector interior; the connector having means thereon to grip the cable and to resist endwise withdrawal of the cable relative to the connector; and a lens unit mountable to a panel and having a lens and a depending skirt attachable to the connector, whereby the light-emitting end of the cable ia maintained in selected spaced relation to the lens.

Abstract: An improved fiber optic connector of the type in which a fiber supporting ferrule is slidably and resiliently biased independently of the surrounding load-bearing parts of the connectors so that forces applied to the fiber optic cable jacket are not transmitted to the ferrule and supported fiber to interrupt communications then in progress. The connector is substantially fully assembled prior to interconnection with the cable, and requires the introduction of an epoxy or other suitable adhesive to secure the fiber within the ferrule which is provided by a syringe. The needle of the syringe is inserted into a positioning tube which confines the adhesive to the needed area, and prevents wicking of the adhesive to surrounding areas where it might interfere with the sliding action of the ferrule. It also wipes the needle of adhesive as it is withdrawn.

Abstract: An optical fiber connector unit is composed of a ferrule including a first flange and a second flange formed to have a greater diameter than other portions, a stopring provided outside of the ferrule, having on its inner peripheral surface a first step and a second step, a coil spring having one end contacting with the first flange end face and the other end contacting with the first step end face, its tip exerting a spring force in an axial direction towards outside from the stopring; and a locating member provided between the stopring and the ferrule and having a first stopper contacting with the second step end face and a second stopper contacting with the second flange end face. The optical fiber connector using the unit can easily be assembled.

Abstract: An SC connector includes a back body having a locking member and a front body having a locking member and a buffer back post. The front body is disposed in the back body and the back body locking member and front body locking member engage to provide a one-piece ferrule buffer back post connector assembly.

Abstract: The invention provides for a cold applied oval port seal particularly useful for sealing optical fiber cables. The closure includes two shell members which fit together to define the enclosure edge wedge seals and internal flexible fingers to locate the optical fibers, restrain movement of the sealing material, and provide strain relief along the longitudinal axis of the cables.

Abstract: A fiber optic connector includes a collapsible crimp ring, a rigid strain relief member, and a deformable strain relief member. The rigid strain relief member, in conjunction with the crimp ring, will grip protective filaments from an optical fiber cable if they are available. The deformable strain relief member will grip a buffered optical fiber when deformed by the crimp ring.

Abstract: A fiber optic connector is described, which has a retention clip (100, FIG. 4 ) that is part of the terminus so the clip is removed with the terminus from a connector housing, to enable replacement of a broken clip as well as to provide a more compact and low cost connector. The clip has a rear end (102) forming a ring that slides along the terminus body, and has a plurality of tines (104-107) that extend forwardly and radially outwardly. The free forward end of each tine has a rearwardly-facing clip shoulder (112) which abuts a forwardly-facing housing shoulder (114) so the clip cannot be removed in a rearward direction until the tines are deflected together. The front ends of the tines abut the rear end (92) of a spring that lies around the terminus body. The termini of the plug and receptacle connectors are identical except that one of the connectors (14, FIG. 5 ) uses a spacer (140) in place of a helical spring.

Abstract: An end connector for fiber optic transport cables. A cable clamp received within a passageway of a housing which receives the cable is provided to hold the cable in a secured position so as to resist rotational and longitudinal forces applied to the cable. Support coupling units are provided both internal and external the equipment which the cable is to be connected to. The coupling units allow the end connector to be coupled to and decoupled from the equipment without unnecessary rotation of the end connector and cable and without having to remove the cable from the end connector. Grounding components are provided for grounding conductive members associated with the cable so as to prevent damage due to voltage surges and to prevent RF signal leakage.

Abstract: An optical connector for coupling an optical fiber cable to another optical fiber cable or optical device. The optical fiber cable has an optical fiber for carrying an optical signal, and it also has a plurality of strain relief members. The optical connector comprises a barrel and ferrule having an optical fiber pre-mounted therein. The optical fiber from the optical fiber cable and the optical fiber are butt-spliced in a central part of the barrel. The optical connector further comprises a connector housing and a cylindrical sleeve member which is slidably mounted over a cable receiving end of the connector housing. The plurality of strain relief members are distributed around the cable receiving end, and the cylindrical sleeve member is guided therearound and then crimped thereon. The cylindrical sleeve member secures the plurality of strain relief members of the optical fiber cable directly to the connector housing.

Abstract: A strain relief apparatus for use with at least one optical fiber mounted between plies within a matrix of a generally planar laminated composite structure wherein the fiber extends from a surface of the composite structure. The apparatus has an anchor that has a distal portion, a proximal portion and an orifice extending therethrough, wherein the proximal portion is configured to be embedded within the composite structure with the distal portion extending from the composite structure and the optical fiber extending through the orifice. In one embodiment, protective cabling is adapted to be threaded over the optical fiber and the protective cabling is secured to the distal anchor portion to provide strain relief to the optical fiber. In another embodiment, a ferrule is adopted to extend over the optical fiber and is mounted within the distal anchor portion to protect the optical fiber.

Abstract: A right angle strain relief system is provided for an optical fiber cable. A fiber optic connector terminates a fiber of the cable on a longitudinal connector axis. A right angle strain relief boot extends from a rear of the connector and has a cable-receiving passage therethrough. The boot has a first leg portion and a second leg portion joined by a bend. The first leg portion is on the longitudinal connector axis and defines a proximal end of the boot coupled to the rear of the connector. The second leg portion extends transversely of the longitudinal connector axis and defines an open distal end of the boot from which the optical fiber cable extends. The boot is rotatable relative to the connector about the longitudinal connector axis. A slot is provided in the boot extending from the open distal end thereof generally to at least the bend in the boot.

Abstract: A sleeve is fixedly fitted onto a terminal of an optical cable, and a disengagement preventing claw formed on the sleeve by cutting and raising its peripheral wall is brought into engagement with an inner surface of a recess which is formed in an inner surface of a cable receiving port of a connector housing. With this construction, the optical cable can be connected to the connector housing without using the conventional plug.

Abstract: A mount for supporting a silicon v-groove array that contains delicate opal fibers. Optical fibers are arranged in a planar silicon v-groove array to form a focal plane array, which is connected to a first L-bracket. The focal plane array and the first L-bracket combination are attached to a second L-bracket via a shock/vibration isolation pad. The second L-bracket includes an extended cylinder which is threaded so that a strain relief can be screwed directly into the second L-bracket and the fibers extending out the first L-bracket can be fed through the second L-bracket and directly into a monocoil. The second L-bracket also includes space to attach front, side and top covers over the focal plane array. In a related method, the silicon v-groove array is epoxied to the first L-bracket. After preparation of the focal plane array, e.g. polishing of the fibers, is completed, the focal plane array/first bracket combination is connected to the second L-bracket, with the pad therebetween.

Abstract: A strain relief boot for an optical connector plug which can prevent the occurrence of acute bends of the connection between the optical connector plug and an optical fiber cable, whereby the deterioration of the transmission characteristic of the optical fiber cable can be prevented. The strain relief boot has a first tubular member of Nylon 6.6 having a Rockwell hardness of about 85 and a second tubular member of thermoplastic polyurethane having Rockwell hardness of about 45 connected coaxially with the first member. An outer diameter of the second member is gradually reduced away from the first member, and an end portion of the second member opposite to the first member is shaped in a cylindrical portion a thickness of which is substantially constant. Preferably, the cylindrical portion has a length of above 4.0 mm.

Abstract: A crimp sleeve, for connection of the back shell of a fiber optic cable connector with a fiber optic cable of a type including a buffered optic fiber having an encircling jacket inclusive of fibrous matter, includes a crimpable body member having first and second open ends and defining a passage between the first and second open ends, the crimpable member having first and second interior surfaces bounding the passage successively lengthwise of the body member. The first interior surface extends from the first open end interiorly of the body member and has a first radius relative to a central axis of the body member and the second interior surface has a second radius relative to the central axis of the body member of measure less than the first radius.

Abstract: The splice device for splicing together two under-sea cables, each of which has a bundle of optical fibers protected inside a protective tube and armoring wires stranded on an inner sheath covering the protective tube, includes a strong support mounted on the protective tubes for protecting the two bundles of fibers, which bundles are welded together. In the splice device the support is locked on the protective tubes between the inner sheaths of the cables, and it receives firstly the end portions of the armoring wires, tensioned longitudinally in one layer on its periphery, and secondly an outer metal sleeve crimped on said support and on the armoring wires between the support and the sleeve.

Abstract: A detector card strain relief system for use with a fiber optic detector system is disclosed in which a detector card/strain relief brace is permanently fixed to the detector card for receiving a plurality of optical fibers exiting from a like plurality of detector cans. The plurality of optical fibers pass through two strain reliefs which are connected to either end of a monocoil. Each of the strain reliefs is connected respectively to the detector card/strain relief brace and a fiber termination mount such that the termination mount cannot be moved without moving the detector cans and, thus, the optical fibers are protected from pulling away from the detector cans while at the same time allowing for proper cooling of the detector cans and minimizing light leaking from the optical fibers. Alternate embodiments for the detector strain relief brace are provided such that the optical fibers may exit from the bottom or the side of the detector card.

Abstract: A fiber optic connector system includes male and female mating connectors for interconnecting a pair of optical fibers each having a central core and an outer jacket. Each connector includes a housing adapted for receiving an end of one of the optical fibers and for mating with the other connector. Each connector housing is a plastic structure overmolded about the outer jacket of its respective optical fiber in an area at the end of the fiber. The outer jacket of the fiber has circumferential grooves into which the overmolded material of the connector housing extends for axially retaining the overmolded housing on the fiber. A band-like locking clip surrounds telescoped portions of the male and female connectors. The locking clip has a radially inwardly projecting locking tab extending into aligned apertures in the telescoped mating portions when the connectors are mated.

Abstract: A fiber optic cable entry connector is described that facilitates integration of fiber optic cables with trunk housings of the type utilized in the CATV industry. The entry connector provides EMI/RFI shielding and weather sealing and is readily compatible with existing fiber optic cables. The entry connector may be reused and may be cycled open and closed to facilitate access to the cable. The entry connector includes a clamp assembly and an entry body that are configured to be mated in combination. The clamp assembly is configured to secure the cable within the connector and to provide weather sealing between the connector and the cable. The clamp assembly is configured to preposition the cores of the cable for insertion through the entry body and into the trunk enclosure. The clamp assembly may be readily adapted to accommodate any sized existing fiber optic cables.

Abstract: A fiber optic plug assembly (10) including resistance-fit cover-halves (12A and 12B) which are combinative to house both simplex plugs (20) and duplex plugs (not shown) to permit duplex data transmission to take place using simplex parts.The plug assembly (10) including the plugs (20) thereof may be quickly and easily connected and disconnected as desired.

Abstract: An optical connector which comprises a ferrule 9, provided on the distal end of an optical fiber cord having a jacketed optical fiber 1 covered by a sheath 3 with a tension member 2 in between, and a stop ring 7 whose distal end position is regulated by the ferrule 9. A resin boot 11 for integrally fixing the respective distal ends of the tension member 2 and the sheath 3 is provided on the rear half of the stop ring 7 by molding.

Abstract: An optical fiber connector assembly is disclosed for mating the end of an optical fiber with a fiber of a second optical connector element. A cylindrical ferrule is adapted to be secured around the optical fiber. A ferrule holder is adapted to be secured about the ferrule. A housing is adapted for receiving the ferrule holder, the housing having a rear open end into which the ferrule holder can be assembled. A spring within the housing biases the ferrule holder forwardly. The housing is adapted for relative permanent mounting to a substructure such as a printed circuit board. A retainer clip is insertable through an opening in the housing from the exterior thereof against a rear portion of the spring to retain the spring within the housing in loaded condition biasing the ferrule holder forwardly in the housing. The retainer clip can be readily removed to allow the ferrule holder to be disassembled from the housing through the rear open end thereof without unmounting the housing from the substructure.

Abstract: A cable joint for joining the ends of two optical fibre cables, each having a core of optical fibres (12) and a king wire (14) surrounded by armor wire (17) and an outer sheath (18), comprises an insert (20) between the core and the armor wire of each cable and a protective sleeve (38) swaged directly to the armor wire braced by the insert. The directly engaged sleeve provides a simple, efficient joint. An over-moulded cover (40) seals the joint.

Abstract: A cable joint or termination has a plastics insulating layer formed by a pair of pre-formed polyethelene parts 7 and 8 which are a close fit around the casing 3 and the cable insulations 1C, 2C. The parts are bonded by ring moulds 9, 10 and 11. This is quicker and cheaper than previous techniques of injection moulding to a sleeve and the cable at the end regions of the casing, and prevents occlusion caused by cable outgassing.

Abstract: A fiber optic harness assembly having reduced weight and bulk comprises a plurality of optical fibers and loose tube protective buffers therefor. At least two of the optical fibers and corresponding buffers are routed commonly along a first branch of the harness and respectively along the second and third branches of the harness. Similarly, strength elements extending parallel to corresponding optical fibers are routed commonly along the first branch to the intersection whereat the strength elements are divided into separate portions for extension respectively along the second and third branches. The strength elements and buffered optical fibers coextending along the harness branches are surrounded and held bundled together in contiguous relationship by respective branch portions of an outer jacket or sheath.

Abstract: An adhesiveless optical fiber termination employs an outer element (14, 76, 90) having a through passage (18, 80, 86) that receives an optical fiber (60, 72, 84). A tubular inner element (12, 78, 92) fits over the cable and telescopically seats in the passage of the outer element. An elastomeric compressive system (16, 74, 94) is seated within the passage substantially encircling the optical fiber and is radially inwardly deformed into secure engagement with the optical fiber therein in response to compressive engagement between the outer element and the inner element.

Abstract: A cable termination member (10) having improved strain relief features for isolating optical fiber members (21,22) in a terminated optical fiber cable (20) from external stresses.

Abstract: A fiberoptic feedthrough fastener and method for forming same comprising sliding a first and second sections of heat shrink tubing up a fiberoptic cable beyond a fastening point. The jacket of the cable is then stripped off at the fastening point, the strength member is stripped off slightly beyond the fastening point, and the exposed strength member is folded back away from the buffered fibers. A section of protective tubing is slid over the exposed buffered fibers until it abuts the end of the jacket. The second section of heat shrink tubing is slid down the cable and the protective tubing. The exposed strength member is caught by the second section of heat shrink tubing and pulled over and about the protective tubing. The second section of heat shrink tubing is then secured about the protective tubing and exposed strength member.

Abstract: A diode laser collimatting device comprising a laser collimatting socket mounted on a socket holder through plug-in connection with a plastic lens retained therebetween in position, a laser diode inserted in said socket holder, an exciter circuit board inserted in said socket holder and connected to said laser diode, and a contact spring inserted in said socket holder and connected to said exciter circuit board, and wherein inserting said laser diode into said socket holder causes said socket holder, said laser diode, said exciter circuit board, said contact spring and said power supply to form into a circuit permitting said laser diode to be excited by said exciter circuit board to emit light through said plastic lens and said laser collimatting socket; a grid is fastened in said center hole to filtrate the light beam produced from said laser diode.

Abstract: A connector 1 for assembly with an optical cable 2 comprises, a shell 10 encircling a spring biased holder 13 for an optical fiber 3 of the cable 2, a sheath 16 to prevent leaking of adhesive 59 from the holder 13, and strength members 5 of the cable 2 anchored to the shell 10, whereby the holder 13 and the optical fiber 3 of the cable 2 are displaceable with respect to the strength members 5 of the cable 2.

Abstract: A fiber optic cable assembly in one embodiment includes an optical fiber, a jacket member axially surrounding the fiber, a connector for coupling the fiber to a source of laser radiation, a strain relief boot attached to the connector and axially surrounding a substantial length of the jacket and the optical fiber, and a support element axially surrounding the proximal end of the optical fiber and separating the jacket and connector from the fiber. In a second embodiment, the cable has first and second jacket portions and a third jacket portion rotatably coupled therebetween. The third jacket portion includes three tubular passages, two of which are arranged in axial alignment with the optical fiber and a third passage angularly connected to the first two and rotatable in an arc about the fiber axis. The third passage is operatively coupled to a fluid port which may be disposed at various arcuate positions about the fiber axis for fluid flow into the third passage.

Abstract: An optical connector comprises an optical fiber cable including a nylon-coated fiber, a tension member thereon, a sheath covering the nylon-coated fiber and the tension member, a ferrule provided at the distal end of the optical fiber cable so as to be attached to the distal end of the nylon-coated fiber, and a holder having a distal end restricted in position by the ferrule when mounted on the nylon-coated fiber. The optical connector is constructed so that the holder is mounted on the nylon-coated fiber by after-attachment. A method for assembling the optical connector comprises providing an urging spring fitted on the nylon-coated fiber so as to be interposed between the ferrule and the holder so as to urge the ferrule forward, and providing a gripper attached to the rear portion of the holder.

Abstract: A fiber optic connector (1) for an optical fiber cable (2), comprising; a strain relief (3) encircling the cable (2), a housing (4), and a fixture (5) attached to the strain relief (3), the fixture (5) interlocking with the housing (4) at a stationary position angularly pointing the strain relief (3) and the cable (2) relative to the housing (4).

Abstract: A strain relief is provided for use with a splice for optical fibers having a fiber channel for housing and guiding a buffered optical fiber. At least one section of the fiber channel has a diameter sufficient to accept the buffered optical fiber. The strain relief is located on this section of the fiber channel. The strain relief comprises a projection which is able to bite into a buffer on the optical fiber without causing compressive stress losses.

Abstract: A fiber optic connector for terminating a length of fiber optic cable having a central fiber optic core covered by cladding. The connector preferably comprises a rigid, one-piece, integrally molded plastic sleeve for fitting over the end of the optic cable with an outermost end of said cable being typically stripped of all material outside of said cladding, and said outermost end projecting in snugly fitting relation through a bore in an outer end of the rigid sleeve. The bore also defines through the sleeve a section spaced from the outer end which is of increased diameter when compared with the bore at the outer end, to snugly receive a portion of the fiber optic cable having unstripped buffer. The rigid sleeve may carry side apertures for receiving a plurality of U-shaped retention members which pass transversely through the side apertures, preferably from a plurality of transverse directions, to grip and retain the fiber optic cable.

Abstract: Means and method for assembling an optical fiber cable with a tubular member that secures an outside protective jacket of the cable. The inside wall of the tubular member is provided with serrations such that when the wall is physically reduced on the protective jacket, the serrations engage and retain the jacket without compressing the inner optical fiber so that it is free to move longitudinally within the jacket. This is accomplished by using a crimping device having a crimping aperture that is sized to precisely control the amount of reduction of the tube wall onto the protective jacket.

Abstract: An optical fiber connector (1) comprises, an alignment ferrule (11) for aligning an optical fiber (3) of an optical cable (2) and a molded, flexible, curved rubber boot (9) extending along a line having a radius of curvature to extend the line 90 degrees from the plane of connection between the ferrule (11) and the boot (9).

Abstract: A coupling bushing 1 for optical fiber connectors comprises a first half structure 1A comprising a base 14 having an axial bore 16 and a socket 15 extending from tlhe rear 21 of the base 14. The socket 15 has a bore 16 axially aligned with the bore of the base 14 to form an extension thereof. The socket 15 is adapted to receive an alignment ferrule of the optical fiber connector. The half structure 1A further comprises, at its front face 20, a pattern of ridges 24 and slots 25 forming keying and aligning feature for intermating with complementary feature of another connecting base. Further, the half structure 1A includes at least one recess 23 and at least one nub 22 forming aligning features for intermating with complementary features of another connecting base. The half structure 1A further comprises a barrel-shaped coupling body 17 extending from the rear face 21 of the base 14 and encompassing the socket 15 within its interior 18.

Abstract: This coupling means comprises a sleeve containing a bore in which is located a bundle of optical fibers, at least some of which are of compression-deformable material. The input ends of the fibers, which receive light from a light source, are located in a predetermined plane. The bore tapers from a relatively large diameter at a location in a second plane spaced from said predetermined plane to a relatively small diameter at said predetermined plane. The tapered bore is of such a size that the optical fibers therein are laterally compressed and the compression-deformable fibers are so deformed in transverse cross-section relative to their normal cross-sections that the fibers more completely fill the bore in its relatively small diameter region than in said second plane.

Abstract: A connector (1) is provided for carrying an end portion of a fiber optic cable (2) to enable the cable to be conencted, via a coupling member, to another fiber optic cable. The connector (1) has an outer sleeve (3) having at one end (3a) connection means (4,26) for coupling to the coupling member and an inner sleeve (5) extending axially through the outer sleeve (3) so that one end (5a) of the inner sleeve is received within the outer sleeve (3) and the other (5b) of the inner sleeve (5) projects from the other end (3b) of the outer sleeve (3) to engage a protective sheath (20) of the cable (2). Locating means (6) are fixedly provided within the outer sleeve for limiting axial movement of the inner sleeve (5) within the outer sleeve (3).

Abstract: An optical fibre cable is terminated by stripping back the jacket a certain length, cutting away the exposed core a shorter length, positioning an organizer a short distance from the newly formed end of the core, and providing a housing bridging the core and the organizer.

Abstract: A relatively simple method is provided for terminating an optic cable to a terminus body, so the optical fiber, buffer, and outer jacket of the cable are all held securely to a terminus body with the end of the optical fiber closely held in position. The method includes forming the terminus body (14, FIG. 2) with a bore extending through its length, the bore including a front bore portion (30) that closely receives the optical fiber, a second bore portion (40) that closely surrounds the buffer, and a third bore portion (42) that closely surrounds a front outer jacket region (18). Adhesive (34) is placed in the second bore portion to fill most of it. The optic cable is positioned with the optical fiber (22) extending through the front bore portion and with the buffer (20) lying against the rear of the quantity of adhesive.

Abstract: An optical fiber contact for terminating an optical fiber includes a solid multi-part thermoset mixture in a cavity in a front portion of the contact, an optical fiber being terminated by heating the thermoset so as to cause it to soften and liquify and subsequently inserting an optical fiber through the contact. The thermoset when liquified chemically reacts so as to form an epoxy adhesive which secures the optical fiber within the contact and keeps the optical fiber in place even when subjected to extremely wide temperature variations.