There is provided an optical fiber in which no color peeling occurs at the time of separation into a single optical fiber from an optical fiber ribbon and a resin coating layer is sufficiently cured. An optical fiber comprises a glass fiber and a resin coating layer that covers the outer periphery of the glass fiber, wherein the resin coating layer has a colored layer having a thickness of 10 μm or more and 0.06 to 1.8% by mass of titanium element is contained in the resin coating layer, and an optical fiber ribbon comprises a plurality of the optical fibers arranged in parallel, the plurality of the optical fibers being connected by a connecting material.

Laser-markable cable layers for a cable are provided. The laser-markable cable layers include an inner layer formed of a first polymer material and an outer layer formed of a second polymer material and a laser-marking compound. The outer layer is about 0.5% to about 50% of the thickness of the inner layer. The laser-markable cable layers surround a wire or cable core. Methods of marking a cable having laser-markable cable layers are also provided.

An optical cable including a load bearing core includes a longitudinally and radially extending slot housing at least one optical fibre, wherein the slot has a width providing a low clearance for the optical fibre(s) housed therein and preventing two optical fibres being stuck to one another; and the slot has a depth equal to or lower than a radius of the core.

Systems and methods for physical cable route tracing are provided. In one embodiment, a cable comprises: one or more of either electrical conductors or optical fibers; a cable sheath around the one or more of either electrical conductors or optical fibers; and a pattern of cable tracing facilitation markings located on an exterior of the cable sheath; wherein the cable tracing facilitation markings comprise either: a visually varying pattern that gradually changes along a length of the cable sheath; or a series of coded markings of an ordered sequence pattern.

An optical fiber carrying structure that includes a jacket is provided. The jacket includes a primary body portion formed from a first polymer material and one or more marking regions formed from a second polymer material. Indicia are formed in at least one of the marking regions. The indicia are formed from a laser-induced change to the second polymer material exposing the first polymer material.

A multi-member cable includes at least a first cable element and a second cable element. The first and second cable elements twist around a center axis of the cable in a counterclockwise direction multiple times to a first reversal point, then twist about the center axis of the cable in a clockwise direction multiple times until a second reversal point, with this pattern repeating along a length of the cable. Adhesion points are formed at intervals along a length of the cable to connect the first and second cable elements. The adhesion points may be spaced apart at an interval equal to a distance between the first and second reversal points. An outer surface of a jacket of the cable may include indications at the first and/or second reversal points, such as physical bumps or markings.

An optical fiber carrying structure that includes a jacket is provided. The jacket includes a primary body portion formed from a first polymer material and a one or more marking region formed from a second polymer material. Indicia are formed in at least one of the marking regions. The indicia are formed from a laser-induced change to the second polymer material.

Aspects of systems and methods for authenticating illuminating medical infusion lines are disclosed. In one aspect a method for authenticating medical infusion lines utilizing a cap color detection assembly is disclosed. The method includes provisioning an electronic illuminator for illuminating medical infusion lines with a cap color detection assembly. Next, connecting a side scattering fiber optic cable with a fiber funnel cap that is configured with a visible color with the electronic illuminator. Then, transmitting a white light from the cap color detection assembly and recording reflected light from the fiber funnel cap. Then, converting the recorded reflective light to a color code. In another aspect a method for authenticating medical infusion lines is disclosed utilizing a fiber detection assembly. The method includes provisioning an electronic illuminator for illuminating medical infusion lines with a fiber detection assembly. Then connecting a side scattering fiber optic cable with a fiber funnel cap that is configured with a metallic plate with the electronic illuminator. Next, detecting a change in voltage as the fiber funnel cap of the side scattering fiber optic cable is connected, wherein a final voltage results in a magnetic flux key. Lastly, authenticating, by the MCU on the electronic illuminator, the magnetic flux key with stored parameters.

An optical fiber splicing tray is disclosed. The optical fiber splicing tray may include: an optical fiber splicing tray body; and a marker detachably connected to the optical fiber splicing tray body, where the marker is arranged at a position facilitating observation and identification of the marker when a plurality of optical fiber splicing trays are stacked.

A fiber optic cable includes a cable core of core elements and a protective sheath surrounding the core elements, an armor surrounding the cable core, the armor comprising a single overlap portion when the fiber optic cable is viewed in cross-section, and a jacket surrounding the armor, the jacket having at least two longitudinal discontinuities extruded therein. A method of accessing the cable core without the use of ripcords includes removing a portion of the armor in an access section by pulling the armor away from the cable core so that an overlap portion separates around the cable core as it is being pulled past the cable core. A protective sheath protects the core elements as the armor is being pulled around the cable core.