Abstract: Embodiments include an optical fiber cable comprising a length extending between a first end and a second end, a central cooling tube, a plurality of optical fibers disposed radially around the cooling tube, each optical fiber comprising a fiber core and a cladding disposed around the fiber core, an outer protective cover, and an inner thermal filler disposed between the outer protective cover and the central cooling tube and surrounding each of the optical fibers, wherein each of the central cooling tube, the outer protective cover, the inner thermal filler, and the plurality of optical fibers extend the length of the cable. Various systems and methods for removing imperfections from individual optical fibers and for distributing power across long distances using the optical fiber cable are also provided.

Abstract: A multi-core fiber includes: a plurality of cores; and a cladding portion formed around outer peripheries of the cores. Further, the cores each have a propagation characteristic conforming to any one of a plurality of standards for optical propagation characteristics, and of the cores, cores that are closest to each other conform to standards different from each other.

Abstract: A photonic package is provided. The photonic package includes a base substrate defining an aperture, a top die and a photonic integrated circuit (PIC) die. The top die includes a body with first and second top die sections. The first top die section is connectable with the base substrate. The PIC die includes body with first and second PIC die sections. The PIC die is disposable in the aperture such that the second PIC die section is connectable with the second top die section and the first PIC die section extends beyond the second top die section and is exposed for connection to a waveguide assembly.

Abstract: In one embodiment, an optical cable, which is a flat drop cable, includes a cavity shaped in the form of a stadium in a sectional view of the optical cable. The cable further includes an outer sheath enclosing the cavity, a first strength member, and a first optical fiber element disposed in the cavity. The first optical fiber element includes an optical fiber and has an oscillating pattern within the cavity on an oscillation plane parallel to a longitudinal plane of the cable. The height of the cavity in the sectional view substantially corresponds to a height of the first optical fiber element.

Abstract: A carrier for a vehicle window lifter configured to be connected to a window pane and adjusted by the vehicle window lifter. The carrier including a guide for a cable of the vehicle window lifter. The guide forms a guide surface and the cable lies along the guide surface when the vehicle window lifter is properly mounted. The guide surface defines at least one cutout configured to receive discharged particles from the guide surface of the carrier.

Abstract: An optical path compensation apparatus includes a wedge assembly, a driving mechanism and a preload unit. The wedge assembly includes a movable wedge and a fixed wedge. The movable wedge and the fixed wedge having equal wedge angles and respective wedge surfaces inclined in opposite directions. The preload unit is configured to elastically press the movable wedge on the fixed wedge, and the driving mechanism is configured to cause relative movement between the wedge surface of the movable wedge and the wedge surface of the fixed wedge. This optical path compensation apparatus is capable of achieving effective position correction of a focal plane of a measurement system for focusing and leveling in a smooth, convenient and precise way while not causing any error in other directions.

Abstract: Methods of characterizing an optical retardance or a stress-related property of a glass-bases sample include directing a light beam into the glass-based sample while varying the polarization of the light beam to generate scattered light for each polarization are provided. The scattered light for each polarization is captured with an image sensor, which has an exposure time and a frame rate. The scattered light has an intensity distribution at the image sensor. The sample is moved so that the image sensor averages two or more different intensity distributions per frame to form an averaged intensity distribution for each polarization. The averaged intensity distributions for multiple frames are then used to characterize the optical retardance. The optical retardance can turn be used to determine stress-related properties of the glass-based sample. Moving the substrate reduces measurement noise scattered light having no optical retardance information.

Abstract: A fiber optic connector is provided. The fiber optic connector includes a housing, a ferrule received in the housing, and an arc-shaped tail tube. The arc-shaped tail tube is secured to a rear end of the housing and includes a ring end portion and a main body. The ring end portion is connected to the rear end, while the main body extends from the ring end portion away from the housing.

Abstract: A cable assembly comprising: (a) a ribbon cable having a plurality of optical fibers having endfaces; (b) an elastomeric sheathing being disposed over at least a portion of the ribbon cable and terminating in a sheathing end near the endfaces such that the endfaces protrude beyond the sheathing end; (c) a ferrule having an mating surface presenting the endfaces, and a rear end having a rear opening through which the optical fibers pass, the rear end contacting the sheathing end to form an adhesive tight seal sufficient to prevent liquid adhesive in the ferrule from flowing out of the rear opening; and (d) adhesive disposed in the ferrule to secure the optical fibers to the ferrule.

Abstract: An amplification optical fiber according to the present invention includes: a core doped with an active element, through which multi-mode light propagates; an inner cladding that surrounds the core and has a refractive index lower than that of the core; and an outer cladding that surrounds the inner cladding and has a refractive index lower than that of the inner cladding. The inner cladding has a polygonal outline in a cross section perpendicular to the longitudinal direction, and the inner cladding has a permanent twist applied by turning around the central axis of the core.

Abstract: An optical fiber cable includes optical fiber ribbons of no less than 12, a slot rod including slot grooves in which the optical fiber ribbons are housed, a tension member, and a cable sheath. The optical fiber ribbons include, at a part of or through all of the optical fiber core wires, in a state where the optical fiber core wires are arranged in parallel, a connecting part where adjacent optical fiber core wires are connected and a non-connecting part where adjacent optical fiber core wires are not connected, which are provided intermittently in a longitudinal direction. A relationship between the number “x” of the optical fiber core wires housed in the optical fiber cable and flexural rigidity “y” (N·mm2) of the optical fiber cable satisfies following Expression 1. y?3e0.

Abstract: Certain aspects of the present disclosure provide techniques and corresponding apparatus for making armored cables with one or more optical fibers contained therein. The techniques may be utilized to control an amount of excess fiber length (EFL) in the armored cables. The techniques may also allow introduction of one or more optical fibers directly into a welding process without using an inner tube in the final armored cable. The techniques may also be utilized to reduce friction and static charge on the optical fiber(s) as the fiber(s) are pushed through one or more guide tubes that protect the fiber(s) during the welding process.

Abstract: An optical fiber unit includes: an optical fiber bundle formed by bundling a plurality of optical fibers; and a plurality of bundling members. Each of the bundling members is wound on an outer circumference of the optical fiber bundle along a length direction of the optical fiber bundle while a winding direction of the bundling member is reversed alternately, and joined with another bundling member at reverse sections where the winding direction of the bundling member is reversed. A region surrounded by a pair of the bundling members to be joined at the reverse sections includes a joining point at one of the reverse sections of another pair of the bundling members.

Abstract: A fiber optic cable includes a jacket forming a cavity therein, a stack of fiber optic ribbons located in the cavity, and a strength member embedded in the jacket. The jacket forms a ridge extending into the cavity lengthwise along the fiber optic cable. The ribbon stack is spiraled through the cavity such that corners of the ribbon stack pass by the ridge at intermittent locations along the length of the cable, where interactions between the ridge and the corners of the ribbon stack facilitate coupling of the ribbon stack to the jacket.

Abstract: An apparatus includes a reference fixture. The reference fixture includes a joint, and a joint tracker to track motion of the joint. The apparatus also includes a surgical instrument. A tether is connected between the joint and the surgical instrument. A shape sensor extends from the reference fixture through the joint, through the tether, and into the surgical instrument. The shape sensor is substantially free of twist. The joint tracker measures the motion of the joint. Information from the shape sensor in combination with information from the joint tracker provides absolute three-dimensional information relative to the reference fixture, i.e., provides absolute three-dimensional information in a fixed world reference frame.

Abstract: An optical fiber connector includes a fixing module, an optical fiber ferrule positioned at an end of the fixing module, and an optical fiber gripped in the fixing module. The optical fiber ferrule axially defines a through hole. An end surface of the optical fiber includes an arc surface. The optical fiber is received in the through hole of the optical ferrule.

Abstract: An optical fiber connector includes a fixing module and an optical fiber ferrule positioned at an end of the fixing module. The optical fiber connector is used for gripping a cable including an optical fiber. The optical fiber ferrule axially defines a through hole. The optical fiber is gripped in the fixing module and is partly protruded out of the optical ferrule. When the optical fiber connector is assembled to an adapter to join with another optical fiber connector, the optical fiber is bent to elastically resist an optical fiber of the another optical fiber connector.

Abstract: Embodiments of a method and apparatus for controlling the mechanical stabilization of an optical fiber are disclosed. The method may consist of placing an inflatable bladder between an optical fiber and a protective jacket. The bladder may be inflated with air, inert gas, or liquid to a desired pressure. The bladder may be sectioned to extend along part of or the entire length of the fiber. The bladder may isolate the optical fiber in a periodic fashion. The temperature of the material inside the bladder may vary axially along the optical fiber. Embodiments of the invention can stabilize the optical fiber by providing mechanical isolation from vibration and other perturbations. Embodiments of the invention can also alter Stimulated Brillouin Scattering (“SBS”) and Stimulated Raman Scattering (“SRS”) thresholds using either thermal or vibrational perturbations.

Abstract: An optical cable comprises an optical fiber ribbon, a tension member and a sheath. The optical fiber ribbon is constructed by integrating a plurality of optical fibers arranged in parallel. The sheath is provided so as to surround the optical fiber ribbon. The sheath is used for protecting the optical cable. One optical fiber ribbon is arranged twistably within an inner space surrounded by the sheath.

Abstract: Fiber optic assemblies include subunit cables wrapped in binders. The assemblies have small cross sections and low bend radii while maintaining acceptable attenuation losses. Stranding of the subunit cables allows ease of access to the individual cables during installation.

Abstract: A method and structures are provided for implementing an impedance-matched, low inductance, 3-dimensional (3D) twisted-pair within a given dielectric material layer. A dielectric material layer is loaded with an electrically insulating metal spinel compound at a set loading level. Upon exposure to a focused laser beam, the spinel is converted to a metallic particle with an electrical conductivity suitable for various applications. An impedance-matched, low inductance, 3-dimensional (3D) twisted-pair is generated using a laser direct structuring process with a fine depth control achieved with a laser.

Abstract: Molded fiber optic cable furcation assemblies, and related fiber optic components, assemblies, and methods are disclosed. In one embodiment, an end portion of a fiber optic cable with a portion of a cable jacket removed to expose optical fibers and/or a cable strength member(s) therein and thereafter placing the cable into a mold for creating a molded furcation plug about the end portion of the fiber optic cable. The furcation plug may be overmolded about the end portion of the fiber optic cable. The molded furcation plug can be used to pull a fiber optic cable without damaging the optical fiber(s) disposed within the fiber optic cable. The molded furcation plug is advantageous since it manufactured with fewer parts, without epoxy, and/or without a labor intensive process that may be difficult to automate.

Abstract: A branching device for enclosing a hybrid fan-out cable the hybrid fan-out cable comprising plural optical cables and power cables, the branching device includes: an enclosure having a first end, through which the hybrid fan-out cable is inserted, and a second end that is opened; and a gasket provided at the second end of the enclosure and having plural through-holes; and a cover thread-coupled to the second end of the enclosure to fasten the gasket to the second end of the enclosure in such a manner that the through-holes are exposed. In the enclosure, the hybrid fan-out cable is branched out into plural individual sub-part cable components, and each of the sub-part cable components is drawn out through one of the through-holes of the gasket to the outside. The gasket is formed from an elastic material which forms a tight seal between the inner peripheral surface of the enclosure and with the outer peripheral surface of each of the sub-part cable components to seal the other end of the enclosure.

Abstract: An optical fiber cable including, in a radial direction outward, a central strength member, a first layer of loose buffer tubes stranded around the central strength member, at least one of the loose buffer tubes of the first layer containing at least one light waveguide, an intermediate layer, a second layer of loose buffer tubes stranded around the intermediate layer, at least one of the loose buffer tubes of the second layer containing at least one light waveguide, and a jacket surrounding the second layer of loose buffer tubes, wherein the intermediate layer is formed of a material having a high coefficient of friction.

Abstract: A hybrid cable includes a guide in the center of the cable, elements stranded side-by-side with one another around the guide, fiber optic elements including optical fibers, a metal armor, and a polymeric jacket of the cable surrounding the metal armor. The elements stranded side-by-side with one another around the guide include electrical-conductor elements, which themselves include stranded metal wires insulated in a jacket of the electrical-conductor elements. The electrical-conductor elements are round and have the same diameter as one another. Furthermore, the electrical-conductor elements are each within the range of 10 American wire gauge (AWG) to 1\0 AWG. The fiber optic elements may be included in or integrated with the group of elements stranded side-by-side with one another around the guide. The metal armor surrounds the elements stranded side-by-side with one another around the guide, and serves as a grounding conductor and an electro-magnetic interference shield.

Abstract: An example fiber optic cable includes an outer jacket having an elongated transverse cross-sectional profile defining a major axis and a minor axis. The transverse cross-sectional profile has a maximum width that extends along the major axis and a maximum thickness that extends along the minor axis. The maximum width of the transverse cross-sectional profile is longer than the maximum thickness of the transverse cross-sectional profile. The outer jacket also defines first and second separate passages that extend through the outer jacket along a lengthwise axis of the outer jacket. The second passage has a transverse cross-sectional profile that is elongated in an orientation extending along the major axis of the outer jacket. The fiber optic cable also includes a plurality of optical fibers positioned within the first passage a tensile strength member positioned within the second passage.

Abstract: A hybrid cable includes a cable jacket and elements stranded within the cable jacket. The elements include greater-capacity electrical-conductor elements and sub-assembly elements. The greater-capacity electrical-conductor elements include a metallic conductor jacketed in a polymer, each within the range of 10 American wire gauge (AWG) to 1\0 AWG. The sub-assembly elements include stranded combinations of sub-elements, where the sub-elements include at least one of polymeric tubes comprising optical fibers and lesser-capacity electrical-conductor elements, each having a lesser current-carrying capacity than 10 AWG. The sub-elements are stranded with respect to one another and additionally stranded as part of sub-assembly elements with respect to other elements.

Abstract: There are provided optical fiber configurations that provide for the delivery of laser energy, and in particular, the transmission and delivery of high power laser energy over great distances. These configurations further are hardened to protect the optical fibers from the stresses and conditions of an intended application. The configurations provide means for determining the additional fiber length (AFL) need to obtain the benefits of such additional fiber, while avoiding bending losses.

Abstract: A fiber optic cable is provided having a at least one fiber element, a layer of aramid strength members, and a jacket disposed over said layer of aramid strength members. The layer of aramid strength members is wound at a lay length that is equal to or lesser than a predetermined bend radius.

Abstract: The present invention relates to an optical fiber cable net including: one elongated optical fiber cable having a front end portion repeatedly moved upward and downward from the lower end portion of the left side of a bee hive-like section along a line forming the bee hive-like section, the optical fiber cable being wound by a plurality of times onto pre-disposed portions where it meets the pre-disposed portions and being moved upward or downward, so that if the front end portion of the optical fiber cable reaches the lower end portion of the right side of the bee hive-like section, the front end portion of the optical fiber cable is sequentially passed through the respective net eyes of the right side of the bee hive-like section, the respective net eyes of the upper side thereof and the respective net eyes of the left side thereof.

Abstract: The present invention relates to a bundled cable suitable for installation in multiple dwelling unit (MDU) applications. The bundled cable includes two or more binders stranded around multiple stranded cable units. The bundled cable not only maintains its integrity on a reel and during installation, but also reduces installation time.

Abstract: A telecommunication cable includes at least one optical fibre unit surrounded by a low fire hazard halogen free polymeric inner sheath that is covered by and in contact with a peelable, environmentally resistant polymer outer sheath. At least two discrete strength members are embedded into the low fire hazard halogen free polymeric inner sheath. The cable is intended for outdoor and indoor use.

Abstract: A method for connecting user devices to optical fiber units contained in an optical cable includes: providing an opening in a sheath of the optical cable to access the optical fiber units contained in the optical cable; extracting a segment of at least one optical fiber unit from the optical cable through the opening; inserting a free end of the extracted segment of optical fiber unit into a protection tube; making the protection tube slide on the extracted segment of optical fiber unit to insert an end portion of the protection tube, distal from the free end of the extract segment of the optical fiber unit, into the optical cable through the opening; positioning a closure element on the optical cable in correspondence of the opening so as to substantially realize a closure thereof; securing in a removable way the closure element to the optical cable and bringing the free end of the extracted segment of optical fiber unit in correspondence of a connection point of a user device.

Abstract: Fiber optic assemblies include subunit cables wrapped in binders. The assemblies have small cross sections and low bend radii while maintaining acceptable attenuation losses. Stranding of the subunit cables allows ease of access to the individual cables during installation.

Abstract: An optical cable includes an optical fiber ribbon core wire provided with an optical fiber having a core and a cladding that surrounds the core, a sheath that surrounds the optical fiber ribbon core wire, and a braid arranged inside the sheath. The braid is formed to include wires woven with each other. In the optical cable, the wire that forms the braid is pushed into the sheath so that the sheath is integrated with the braid.

Abstract: An optical cable includes a buffer tube housing at least one optical fiber, a sheath surrounding such buffer tube and at least one longitudinal strength member embedded in the sheath, in which at least one separation element is provided between a portion of the outer surface of the buffer tube and the inner surface of the sheath, laying in an axial plane not containing the at least one strength member.

Abstract: A rack cabling system including a rack having mounted thereon a first hardware component and a patch panel housing mounted on the rack adjacent the first hardware component. The patch panel housing populates no more than a three rack unit (RU space), the patch panel housing including a first end having cable pathway openings and a second end having connector elements mounted therein. The patch panel may have a first cable pathway opening located adjacent the first side of the housing and defining a primary position and a first connector element mounted on the second end and the first connector element having a first position corresponding to the primary position of the first cable pathway opening. Cable harnesses are routed with less than three bends of the cables between the first hardware component and the patch panel housing, so that the first cable harness is terminated at the first connector element in the first position.

Abstract: A multi-tight buffer fiber optic cable includes a first layer of tight buffer optical fibers and at least one second layer of tight buffer optical fibers surrounding the first layer of tight buffer optical fibers. A jacket surrounds the at least one second layer of tight buffer optical fibers, where the first layer of tight buffer optical fibers and the at least one second layer of tight buffer optical fibers are helically wound, and where the at least one second layer of tight buffer optical fibers are helically wound in the same direction as the first layer of tight buffer optical fibers and at substantially the same lay length.

Abstract: Embodiments of the present disclosure disclose an optical cable and an optical cable system, where the optical cable includes an SZ-shaped optical cable skeleton and a plurality of optical fiber units. Skeleton slots is recessed in a periphery of the optical cable skeleton, and the plurality of optical fiber units is grouped and respectively disposed in the corresponding skeleton slots, thereby having the advantages of being easy to strip and draw, high reliability, and long lifetime. Moreover, the optical fiber does not need to be connected when being diverged on floors during installation, thereby reducing the fusion splicing/termination connection time, simplifying the optical cable wiring, greatly reducing deployment cost of an Optical Distribution Network (ODN), and speeding up the scale deployment of the FTTX ODN; in addition, interference among the optical fibers is avoided when the optical fibers are drawn, thereby increasing reliability of the optical fibers after installation.

Abstract: Fiber optic cables and methods of manufacturing fiber optic cables are disclosed herein. According to one embodiment, a fiber optic cable includes a plurality of optical fibers. The fiber optic cable also includes strength material having a relatively long lay length, the strength material surrounding the plurality of optical fibers and a polymer jacket surrounding the strength material. Each of the optical fibers is configured to exhibit a bend-induced optical attenuation of less than or equal to about 0.5 dB when wrapped one turn around a 10 mm mandrel at a wavelength of 850 nanometers.

Abstract: Fiber optic assemblies include subunit cables wrapped in binders. The assemblies have small cross sections and low bend radii while maintaining acceptable attenuation losses. SZ stranding of the subunit cables allows ease of access to the individual cables during installation.

Abstract: An optical cable includes an optical fiber, a primary coating coated on the optical fiber, and an outer coating coated on the primary coating. The optical cable is spiral, and can be compressed or stretched. The outer coating comprises about 40 to 70 weight percent of caoutchouc, about 20 to 50 weight percent of neoprene, about 0 to 6 weight percent of magnesium oxide, about 0 to 6 weight percent of zinc oxide, and about 0 to 6 weight percent of vulcanization accelerator.

Abstract: Fiber optic distribution cables and methods for manufacturing the same are disclosed. The fiber optic distribution cables present one or more optical fibers outward of the protective covering for distribution of the same toward the subscriber. In one fiber optic distribution cable, a length of distribution optical fiber that is removed from the distribution cable and presented outward of the protective covering is longer than the opening at access location. In another embodiment, a demarcation point is provided for inhibiting the movement (i.e., pistoning) of the distribution optical fiber into and out of the distribution cable. In still another embodiment, an indexing tube is provided for indexing a tether tube within the indexing tube for providing the distribution optical fiber with a suitable excess fiber length. Additionally, other embodiments may include a fiber optic distribution cable having a dry construction and/or a non-round cross-section.

Abstract: A fiber optic cable can comprise technology for mitigating stress on optical fibers of the cable. The technology can protect the optical fibers from compression, such as stemming from installation, deployment, or handling. The technology can compensate for thermally induced expansion and contraction of cable elements having differing thermal expansion characteristics, arising when the cable is subjected to temperature variations. The cable can comprise a central strength member onto which an elastomeric material, such as silicone, has been applied. The elastomeric material can protect optical fibers that are located between the central strength member and an outside jacket.

Abstract: The invention relates to a fiber optic furcation assembly (1) which comprises an over-molded body (2) formed from a flexible material, having a first end (15) and an opposed second end (16), the first end (15) being adapted to receive a portion of a fiber optic distribution cable (3) having at least two optical fibers (7), and the second end (16) being adapted to receive a portion of at least one furcation cable jacket (13) sheathing at least one furcated optical fiber (7?) from the fiber optic distribution cable (3), at least one of the fiber optic distribution cable (3) and the furcation cable jacket (13) comprising reinforcement members (9, 12). To reduce the load of the optical fibers (7) within the furcation assembly at least a portion of the reinforcement members (9, 12) is anchored within the over-molded body (2) so as to transmit a load from the over-molded body via the anchored reinforcement members (9, 12) to the respective cable (3, 4).

Abstract: An optical fiber cable for bundled drop applications has a plurality of optical fiber sub-units stranded together in an S-Z lay configuration and a jacket surrounding and holding the sub-units in the S-Z configuration without assistance from binder threads. The jacket contacts at least some of the sub-units and has one, but preferably at least two, longitudinally disposed grooves on an external surface. With at least two grooves, the sub-units are accessed by bending the cable until the jacket buckles between the grooves, cutting the jacket at the buckle, and peeling back a portion of the jacket longitudinally between the grooves.

Abstract: A crush-resistant fiber optic cable is disclosed, wherein the cable includes a plurality of optical fibers. The fibers are generally arranged longitudinally about a central axis, with no strength member arranged along the central axis. A tensile-strength layer surrounds the plurality of optical fibers. A protective cover surrounds the tensile-strength layer and has an outside diameter DO in the range 3 mm?DO?5 mm.

Abstract: A fiber optic cable includes a plurality of optical fiber subunits, each of the subunits including four fiber optic elements and an enclosing jacket. A plurality of optical fiber subunit assemblies are also included, each of which includes a plurality of the optical fiber subunits and an enclosing micro-sheath. The subunits are stranded around one another. A sheath encloses the plurality of optical fiber subunit assemblies.

Abstract: It is disclosed a process for manufacturing a fiber optic overhead ground wire cable. The process comprising the following steps: providing an optical core; providing a reinforcing structure consisting of at least one layer of wires onto the optical core, at least part of the wires being clad with a first metallic material; extruding an outer layer onto the reinforcing structure, the outer layer being made of a second metallic material having a softening point substantially similar to the softening point of the first metallic material; and cooling the outer layer immediately after extruding.

Abstract: An assembly of fiber optic elements includes at least two subunits, each of which has at least one fiber optic unit and a flat binder wrapped over the subunits into an arrangement. The at least two subunits are stranded in a S-Z arrangement at a first lay length and the binder is stranded over the subunits in a uni-directional helical lay at a second lay length. The payoff tension and the first lay length of the subunits, combined with a payoff tension and the second lay length of the binder are simultaneously sufficient to hold the subunits within the arrangement, while being loose enough to allow a single subunit to be removed without destroying the arrangement.