Abstract:
A fiber optic connector comprising a plug and a receptacle uses the spring force supplied by bowing of the plug fiber to maintain a continuous compressive load at the fiber joint located in a fiber-alignment groove. The plug has a holder for securing the plug fiber and a shroud which snaps onto the holder with the plug fiber extending generally straight inside the shroud. The shroud has a slot providing access to the terminal portion of the plug fiber, and a sliding door which selectively covers the slot. The receptacle includes a housing and another fiber holder for securing the receptacle fiber, with a projection or finger attached to the receptacle fiber holder, the projection having the fiber-alignment groove. The finger is oriented within the receptacle housing such that, when the plug is inserted into the receptacle, the finger extends through the slot in the shroud at an oblique angle with respect to the plug axis. In this manner, as the plug is inserted, the end of the plug fiber slides into the fiber-alignment groove in the finger and comes into contact with the end face of the receptacle fiber. Continued insertion results in bowing of the plug fiber to achieve the compressive load. The plug door may have camming surfaces which are actuated by corresponding surfaces on a door of the receptacle. The connector may be used to simultaneously interconnect a plurality of fiber pairs, or to terminate a fiber to an active optical device.
Abstract:
A preformed fiber optic applique (10) having a backing layer (14) is provided. The backing layer or film, has an adhesive coating (16) applied thereon. At least one optical fiber (18) is routed and bonded to the adhesive layer providing a continuous optical signal path from one end to another. A releasable liner is releasably attached to the adhesive layer and positioned to cover the backing layer including the at least one optical fiber. Microstructures (42) are provided on the backing layer in one embodiment. The microstructures are crushable structures that prevent the adhesive from immediately adhering to a substrate.
Abstract:
A connector for coaxial interconnection of optical fibers includes an elastically deformable housing having regions (140, 142, 150) with differing geometries and elastic properties. The geometries and elastic properties in the housing regions are adapted to retain against a channneled mount (116) optical fiber components with widely varying diameters and a wide range of tolerances.
Abstract:
A fiber optic ribbon cable has optical connector assemblies and release elements manufactured in line with the ribbon cable assembly so as to provide a fixed, lateral spacing of the optical fibers relative to each other within the connector assembly and has the remaining portion of the cable manufactured whith an arbitrary lateral spacing of the optical fibers relative to each other. A pair of adhesive tape layers are sandwiched around the optical fibers, release elements and in-line optical connector assemblies. The release elements provide access points to the optical fibers for easy application of a connector in the field. To equip the cable with a connector, the cable is cut near the midpoint of one of the access points. After the cable is cut, the adhesive tape layers and the release element may be easily peeled back exposing the optical fibers.
Abstract:
The present invention is an optical fiber connector with an internal structure which allows the polarization axis of an optical element to be freely rotated and fixed with respect to a rotational orientation-indicating reference on an external surface of the connector. The reference then provides an external physical indication of the spatial direction of the birefringence axes of the optical element.
Abstract:
A fiber optic connector includes a collapsible crimp ring (26), a rigid strain relief member (16), and a deformable strain relief member (18). The rigid strain relief member, in conjunction with the crimp ring, will grip protective filaments from an optical fiber cable (20) if they are available. The deformable strain relief member will grip a buffered optical fiber when deformed by the crimp ring.
Abstract:
A compact optical fiber distribution center has a housing provided by a pair of stackable containers. One container encloses a fiber connector zone in which a plurality of card-like modules are slidably mounted, normally aligned in single file, and each extending vertically when the distribution center is in use. The other container has a jumper routing zone at the front, a fiber routing zone at the rear, and an intermediate fiber storage zone which is divided by partitions, each of which is aligned with a space between adjacent modules. Each module carries a row of optical fiber connectors. At one side of the housing, the rear ends of the connectors can be connected to optical fibers of one or more feeder cables, and at the other side, the rear ends can be connected to optical fibers of one or more distribution cables. The front ends of the connectors at said one side can be connected by optical fiber jumpers to the front ends of connectors at said other side, thus interconnecting any feeder fiber with any distribution fiber. Easy access to the connectors is afforded by sliding individual modules out of the single file toward a front or a rear opening in the housing, which openings are closable by hinged doors.
Abstract:
A stubless optoelectronic device receptacle for connecting multifiber optical ribbon cables to optoelectronic semiconductor components is provided. The optoelectronic device receptacle consists of a receptable alignment block portion (10) contained in the receptacle body. The alignment block has a connector coupling surface (12) for engaging a fiber optic ribbon connector. An optoelectronic semiconductor component (30) is fixedly mounted to the connector coupling surface of the alignment block and a flexible circuit (40) is then mounted to the electronic semiconductor component to provide power to the component. In the preferred embodiment, the alignment block contains mechanical features (24, 26, 74) which perform precision alignment of the block to a connector attached to the fiber ribbon cable.
Abstract:
The present invention is a fiber optic cable connector for providing a low cost connector that provides strain relief to optical fibers without compromising an optical coupling. The cable connector has a connector body (30) that has front and back ends (38, 40). The front end of the cable body has a pair of latching members (46) extending therefrom and a mounting post (48) that also extends therefrom. The back end of the connector body (30) is tapered to form a cable transition member. A connector body cover (34) is provided to protect optical fibers residing between the connector body (30) and the body cover (34). A fiber alignment block (32), or ferrule, is provided that has a fiber receiving surface (60) for receiving at least one optical fiber and a connector body engagement surface (58) and an optical interface device surface (62). A plurality of alignment grooves (66) are formed in the receiving surface (60) for aligning the at least one optical fiber. The connector body engagement surface (58) of the ferrule includes a receiving cavity (76) for receiving the mounting post (48) of the connector body (30).
Abstract:
A mechanical optical fiber splice with does not employ any gel material with a matching refractive index, wherein the fiber ends are prepared for intimate axial compressive contact and the fiber end faces are maintained in the splice element in optically aligned intimate contact under axial compression, as the result of heating, elastic deformation or plastic deformation of the splice element. A fixed clamping mechanism (25) was attached to the actuating tool (17) at the left side of the splice nest (20), and positioned to grip the fiber immediately as it exited the splice. A second fiber clamp (23) was mounted at the right side of the splice nest (20) on a linear ball slide with approximately 0.1 inch (2.5 mm) travel. A compression spring (26) was in contact with the ball slide, and located opposite the splice nest (20) a screw was mounted on the tool base and was used for adjusting the force that the compression spring (26) placed on the fiber via the ball slide.