A fiber optic cable breakout assembly includes: a fiber optic cable including a plurality of first optical fibers and a first jacket surrounding the optical fibers; a breakout canister; a plurality of pigtail cords, each of the pigtail cords including a second optical fiber partially encased in a second jacket and an optical connector, each of the pigtail cords extending away from the canister, each of the optical fibers extending through the canister; and a flexible furcation tube attached to and extending between the fiber optic cable and the breakout canister, the furcation tube including an armored inner layer and a polymeric outer layer, wherein each of the first optical fibers is spliced to a respective second optical fiber within the inner layer of the furcation tube.

A fiber optic connector comprising a fusion assembly for strengthening a splice point. The fusion assembly comprises an elongate mechanical support positioned adjacent the splice point and snugly encased by a flexible tube. In one embodiment, a meltable adhesive in the form of a hollow tube is positioned over the splice point and the flexible tube comprises a heat shrinkable material. In another embodiment, the mechanical support is an elongate plate having a concave surface positioned adjacent the splice point and a C shaped cross section.

The present disclosure describes fusion spliced cable assemblies. An assembly may include a first and a second fiber optic cable, where an end of at least a first optical fiber from the first fiber optic cable is fusion spliced together with an end of at least a second optical fiber from the second fiber optic cable, the first optical fiber having a first length of prepared fiber extending from the spliced end of the first optical fiber to a transition point of the first optical fiber, the second optical fiber having a second length of prepared fiber extending from the spliced end of the second optical fiber to a transition point of the second optical fiber, where the transition point of the first optical fiber is a distance from the transition point of the second optical fiber, and where a total length of prepared fiber is the sum of the first length of prepared fiber for the first optical fiber and the second length of prepared fiber for the second optical fiber; a support configured to engage at least a portion of the total length of prepared fiber such that the distance between the transition points of each optical fiber is less than the total length of prepared fiber of the first and second optical fibers; and a transition housing coupled to the first and second fiber optic cables and surrounding the support. Fusion spliced cable assembly breakout kits are also provided.

The present disclosure relates to a fusion splice matched pair detachable connector for high fiber count applications where optical fiber alignment is maintained during processing of the detachable connector.

A method for protecting fusion spliced optical fibers includes immersing sections of fusion spliced first and second optical fibers in a pool of molten thermoplastic material, followed by removal and cooling of liquid-coated areas, to yield a solid thermoplastic overcoating that extends over a splice joint as well as previously stripped sections and pre-coated sections of the first and second optical fibers. Optionally, a strength member may be adhered to the solid thermoplastic overcoating to provide a reinforced fusion spliced section. A strength member may include a metal rod or a secondary, thick thermoplastic coating. A fiber optic cable assembly includes a solid thermoplastic overcoating that extends over the splice joint as well as previously stripped sections and pre-coated sections of the fibers. Such coating may be formed rapidly with minimal capital expense, may dispense with the need for integrated strength members, and may provide reduced size and enhanced flexibility as compared to heat shrink protection sleeves.

An optical fiber securing structure includes: an optical fiber including a coating, and a coating-removed section in which a partial section of the coating is removed from the optical fiber; a reinforcement member including main surfaces and a groove formed from one of the main surfaces toward an inside of the reinforcement member, where the groove has a pair of side walls and a bottom wall; and a resin member that secures the coating-removed section to the pair of side walls and the bottom wall. A bottom part of the groove that includes the bottom wall has a widthwise cross-sectional shape where the bottom wall constitutes a trapezoidal shape such that a distance between the pair of side walls becomes greater in a direction away from the bottom wall.

The present disclosure describes an optical fiber splice closure for joining two fiber optic cables. The optical fiber splice closure comprises a strain relief assembly that securely holds the two fiber optic cables being connected, and an enclosure that houses the strain relief assembly. The configuration of the strain relief assembly allows for securing the two fiber optic cables in a compact space, thus permitting a compact enclosure of the optical fiber splice closure, while also providing quick and easy installation in the field. A method of joining fiber optic cables using the optical fiber splice closure is also disclosed. The optical fiber splice closure and ease of joining also facilitates repairing damaged fiber optic cable. A method of repairing existing fiber optic cable is disclosed.

A method of assembling a wavelength division multiplexing (WDM) cassette for a fiber optic network is disclosed and includes attaching a first plurality of wavelength filters to a first cassette workpiece, attaching a second plurality of wavelength filters to a second cassette workpiece, organizing the optical fibers extending from the wavelength filters, adjusting a length of the optical fibers extending from wavelength filters, and forming an optical connection between the optical fibers from the wavelength filters via a mass fusion splice. The first cassette workpiece and the second cassette workpiece are separate from each during at least one of the attaching, organizing, adjusting, and forming steps. The optical fibers may have predetermined lengths for being arranged in a helix configuration and folded to produce an organized fiber stack that fits within the confines of the cassette. A WDM cassette having an organized arrangement of optical fibers is also disclosed.

An optical fiber fuse protection device includes an upstream optical fiber disposed on an upstream side, a downstream optical fiber disposed on a downstream side, and a wall interposed between a part of the upstream optical fiber and a part of the downstream optical fiber. The downstream optical fiber is fusion-spliced to the upstream optical fiber and is made of a single optical fiber or a plurality of optical fibers fusion-spliced to each other.

A system may include a splice housing positioned along a portion of tubing in a wellbore and a splice housing protector around the splice housing. An uphole fiber optic cable may extend through the splice housing protector. The uphole fiber optic cable may mate with a first port of the splice housing at a downhole end of the splice housing protector. A downhole fiber optic cable may mate with a second port of the splice housing in the splice housing protector. The splice housing may splice the uphole fiber optic cable and the downhole fiber optic cable.