Patent application number | Description | Published |
20080273855 | Hardened Connector System Including A Translator - Embodiments of the invention include a hardened connector system. The connector system includes a connector plug for terminating an optical fiber, a plug housing for coupling to the optical fiber cable and the connector plug, and a translator for coupling the plug housing and the connector plug to an optical fiber connector adapter. The translator, which couples the plug housing to a jack receptacle portion of the connector adapter is configured to allow the connector to be decoupled from the connector adapter without damaging the connector adapter, e.g., when the connector system is subjected to relatively excessive cable loads. Also, the dimensions and configuration of the plug housing allow it to be pulled through conventional conduit, including a 90′-bent, 0.75 inch Schedule 40 conduit. | 11-06-2008 |
20090087148 | Optical fiber cables - An optical fiber cable suitable for drop cable applications has a dual jacket, dual reinforcement layers, a round cross section, and a tight buffered construction. The optical fiber cable is a compact unitary coupled fiber assembly that has a small profile, and is light in weight, while still sufficiently robust for many indoor/outdoor drop cable installations. The small profile and round construction make the cable easy to connectorize. | 04-02-2009 |
20090087154 | Optical fiber cables - Described are new cable designs for indoor installations wherein the cable comprises a dual-layer optical fiber buffer encasement of acrylate resin. The buffer encasement has an acrylate compliant inner layer that protects the fiber and minimizes stress transfer to the fiber; and a hard, tough acrylate outer layer that provides crush resistance. The dual-layer optical fiber buffer encasement is wrapped with reinforcing yarn and encased in an outer protective jacket. A dual jacket embodiment adapted for indoor/outdoor installations is also described. | 04-02-2009 |
20110170829 | CONNECTOR COVER FOR OUTSIDE PLANT APPLICATIONS - Certain embodiments of the invention may include apparatuses, systems, and methods for providing a connector cover for outside plant application. According to an example embodiment of the invention, a connector cover assembly is provided. The assembly can include an elongated hollow cylindrical cover having a closed first end, and open second end. The assembly includes a plug comprising an elastomeric material and having a plug first end, a plug second end, a bore extending through the plug from the plug first end to the plug second end, and a cover mating surface adjacent to the plug first end. The cover mating surface is operable to slidingly engage the cover, and the plug is operable to surround and slidingly engage optical fiber cordage extending through the bore. | 07-14-2011 |
20110229085 | SIMPLEX CONNECTORS FOR MULTICORE OPTICAL FIBER CABLES - An optical fiber cable connector includes a ferrule subassembly, in which a ferrule is mounted into a receptacle including a barrel section having a flange at its base. The ferrule subassembly is loaded into an enclosure having a plug housing at its lead end. The plug housing is configured to provide a connection between an endface of a multicore fiber mounted into the ferrule and a corresponding surface in a mating socket. A collar is rotatably mounted onto the barrel section of the ferrule subassembly such that it butts up against the flange. The collar has an opening that fits around the barrel section, and an outer perimeter that fits into a receiving cavity with the plug housing. The ferrule, receptacle, receptacle barrel section, mounted multicore fiber, enclosure, and plug housing have a common longitudinal axis. As a result, the ferrule, receptacle, receptacle barrel section, and mounted multicore fiber are continuously rotatable with respect to the enclosure and plug housing, thereby enabling a precise rotational alignment of the multicore fiber within the enclosure. | 09-22-2011 |
20110229086 | MULTIFIBER CONNECTORS FOR MULTICORE OPTICAL FIBER CABLES - Structures and techniques are described relating to the alignment of multicore fibers within a multifiber connector. These structures and techniques include: multicore fibers having a number of different shapes, including, for example, circular, elliptical, D-shaped, double D-shaped, and polygonal; multifiber ferrules, having a plurality of fiber guide holes therein of various shapes; alignment fixtures for aligning multicore fibers within multifiber ferrules; and various multicore fiber alignment techniques. | 09-22-2011 |
20110243515 | Optical fiber cables - Described are new cable designs for indoor installations wherein the cable comprises a dual-layer optical fiber buffer encasement of acrylate resin. The buffer encasement has an acrylate compliant inner layer that protects the fiber and minimizes stress transfer to the fiber; and a hard, tough acrylate outer layer that provides crush resistance. The dual-layer optical fiber buffer encasement is wrapped with reinforcing yarn and encased in an outer protective jacket. A dual jacket embodiment adapted for indoor/outdoor installations is also described. | 10-06-2011 |
20120219254 | SINGLE-FIBER CONNECTORS FOR OPTICAL FIBER CABLES - An optical fiber cable connector includes a ferrule with a guide hole that is shaped to closely receive a multicore fiber having a flat side indicative of the rotational orientation of the cores of the multicore fiber. The ferrule includes a flat surface at one side of the guide hole, corresponding in position to the flat side of the multicore fiber. Installing the multicore fiber into the guide hole with its flat side abutting the flat surface along the side of the guide hole provides alignment of the cores with respect to an optical component to which the multicore fiber endface is to be connected. | 08-30-2012 |
20120219255 | CONNECTORS FOR USE WITH POLARIZATION-MAINTAINING AND MULTICORE OPTICAL FIBER CABLES - An optical fiber ferrule has a plurality of guide holes therein for guiding a respective plurality of flat-sided fibers at an end of a multifiber optical fiber cable. The fibers' flat sides identify a particular rotational orientation of the fiber. Rotational alignment is achieved by urging the fibers' flat sides against a corresponding reference surface within the ferrule or within an alignment fixture. Also described is a fiber array block having a plurality of V-shaped grooves extending across an outer surface and terminating at an endface. The V-shaped grooves are shaped to guide a respective plurality of flat-sided fibers. A lid is installable across the plurality of V-shaped grooves, over fibers that have been loaded therein. | 08-30-2012 |
20130251321 | Optical Fiber Cables - Described are new cable designs for indoor installations wherein the cable comprises a dual-layer optical fiber buffer encasement of acrylate resin. The buffer encasement has an acrylate compliant inner layer that protects the fiber and minimizes stress transfer to the fiber; and a hard, tough acrylate outer layer that provides crush resistance. The dual-layer optical fiber buffer encasement is wrapped with reinforcing yarn and encased in an outer protective jacket. A dual jacket embodiment adapted for indoor/outdoor installations is also described. | 09-26-2013 |
20130299076 | SYSTEMS AND TECHNIQUES FOR IMPROVING INSERTION LOSS PERFORMANCE OF MULTICORE FIBER CONNECTORS - Structures and techniques are described for aligning multicore optical fibers in a multicore optical fiber cable having a plurality of optical fiber cores, at least one end portion and a protective coating. The protective coating is removed from the end portion of the multicore fiber cable to create an exposed end portion of the multicore fiber. The exposed end portion of the multicore fiber is inserted into a guide hole defined longitudinally through a ferrule subassembly. The cores of the fiber are aligned rotationally, in a predetermined orientation, relative to the ferrule. Each fiber is biased within its respective guide hole in a predetermined orientation relative to the ferrule. The multicore fiber is bonded within the ferrule. The fiber is trimmed at the ferrule tip and the ferrule and fiber end faces are polished, so that a selected alignment of the multicore fiber is achieved. | 11-14-2013 |
20130315540 | OPTICAL CONNECTOR FOR CABLES HAVING A BEND INSENSITIVE FIBER - An optical connector has a housing, and a retention member for retaining a cable with a fiber that has a specified minimum bend radius. A rear portion of a connector ferrule and spring are seated in the retention member, a front end of the member engages the connector housing, and the spring urges the ferrule toward the front of the connector housing. An elongated cable support has an axial passage that opens at a front end and at a back end of the support for receiving the cable, and the front end of the support is joined at the rear of the retention member. The passage in the support has a radially outward flare at the back end which acts to limit the cable from bending in the vicinity of the connector, so that the cable fiber is not strained below the specified minimum bend radius. | 11-28-2013 |
20140205244 | UltraHigh-Density Fiber Distribution Components - A pre-terminated distribution module is provided with a set of multicore fiber (MCF) connector adapters at its front end and a set of multifiber MCF connector adapters at a second end. The MCF connector adapters and multifiber MCF connector adapters are connected to each other within the module housing by means of an MCF fanout. The MCF connector adapters are configured to provide core-aligned connection for MCF jumper cables that are plugged into the front end of the module. The MCF jumper cables are configured to provide connectivity to an array of optical devices. The multifiber connector adapters are configured to provide core-aligned connectivity for multifiber MCF cables that are plugged into the back end of the module. The multifiber cables are configured to provide connectivity between the module and a trunk (backbone) cable. Further described are pre-terminated trunk (backbone) cables and pre-terminated fiber optic jumper cables (i.e., patchcords). | 07-24-2014 |
20140294350 | Apparatus For Alignment of A Multicore Fiber in A Multifiber Connector And Method of Using Same - A multicore fiber alignment apparatus is described, having a chassis into which is mounted ferrule-holding means for holding a multicore fiber ferrule having one or more capillaries extending therethrough. Fiber-holding means for holding one or more multicore fibers in position to be mounted into the ferrule, such that each multicore fiber extends through a respective ferrule capillary. Means are provided for monitoring the rotation angle of each multicore fiber within its respective capillary, relative to a reference rotational orientation. Means are further provided for rotating each of the multicore fibers within its respective capillary. The rotational orientation of each multicore fiber is fixed when its rotation angle is equal to zero. | 10-02-2014 |