A bandpass filter may include a set of layers. The set of layers may include a first subset of layers. The first subset of layers may include hydrogenated germanium (Ge:H) with a first refractive index. The set of layers may include a second subset of layers. The second subset of layers may include a material with a second refractive index. The second refractive index may be less than the first refractive index.

A rodent repellent fiber optic cable includes an outer jacket, one or more optical fibers, and a repellent electrostatically bonded to at least one component of the cable. The one or more optical fibers extend longitudinally through an interior of the cable. The repellent is preferably an olfactory stimulant, such as menthol, configured to repel rodents. In various embodiments, the cable also includes one or more separators and/or a sheath. In embodiments that employ separators, at least one optical fiber is wrapped in, or otherwise surrounded by a separator. In embodiments that employ a sheath, the sheath surrounds an assembly of the cable's internal components.

A rodent repellent cable includes a jacket, a transmission means for facilitating transmission of electrical current or data, and a repellent bonded to at least one component of the cable. A method of manufacturing the rodent repellent cable includes electrostatically bonding a repellent to one or more components of the cable and adding the jacket around the internal components of the cable. The repellent is preferably an olfactory stimulant configured to repel rodents. Prior to adding the jacket around the internal components, the method may also include wrapping, enclosing, or otherwise surrounding one or more of the transmission means with a separator and/or wrapping, enclosing, or otherwise surrounding an assembly of internal components with a sheath. Additionally, prior to adding the jacket around the internal components, an assembly of internal components may be passed through a cooling apparatus to cool the assembly to a pre-determined temperature.

A rodent repellent cable has an outer protective jacket for housing the cable's internal components. The internal components include at least a means for facilitating transmission of electrical current or data, and a repellent bonded to at least one component of the cable. The means for facilitating transmission of electrical current or data include, but are not limited to, wires and optical fibers. The cable may include additional internal components, such as one or more separators and a sheath. The repellent is configured to repel rodents, based on a negative olfactory stimulus when the rodents are subjected to the repellent. This will deter rodents from chewing on wire or cable containing the repellent, which will significantly reduce the incidence of fires of undetermined origin and rodent-inflicted damage to wiring systems universally.

An optical fiber cable includes a central strength member, a bedding compound surrounding the central strength member, a plurality of buffer tubes stranded around the central strength member and the bedding compound such that the bedding compound forms to the buffer tubes and occupies substantially the entirety of an inner core area between the buffer tubes and the central strength member. At least one of the buffer tubes contains a plurality of optical fibers and a jacket surrounds the plurality of buffer tubes. The cable may further include a second bedding compound that fills interstices in an outer core area between the buffer tubes and the jacket.

A high-density optical fiber ribbon is formed by two or more cladding-strengthened glass optical fibers each having an outer surface and that do not individually include a protective polymer coating. A common protective coating substantially surrounds the outer surfaces of the two or more cladding-strengthened glass optical fibers so that the common protective coating is common to the two or more cladding-strengthened glass optical fibers. A fiber ribbon cable is formed by adding a cover assembly to the fiber ribbon. A fiber ribbon interconnect is formed adding one or more optical connectors to the fiber ribbon or fiber ribbon cable. Optical data transmission systems that employ the fiber ribbon to optically connect to a photonic device are also disclosed. Methods of forming the cladding-strengthened glass optical fibers and the high-density optical fiber ribbons are also disclosed.

A telecommunications cable jacket insertion system operates to insert a telecommunication cable into a jacket after the jacket has been separately extruded. The system includes a jacket having structures for easily inserting a cable therein over a long distance in a field location. The system can further include a tool for facilitating the insertion of the cable into the jacket. Further, a cabling system includes a cable assembly that is disaggregated into a robust outer jacketing portion and a manageable fiber optic cable portion. For regions of a cable installation where a robust cable construction is desired, the manageable fiber optic cable portion is sheathed or otherwise contained within the robust outer jacketing portion. For regions of a cable installation where a robust cable construction is not needed, the manageable fiber optic cable portion extends beyond or outside of the robust outer jacketing portion.

A rodent repellent cable has an outer protective jacket for housing the cable's internal components. The internal components include at least a means for facilitating transmission of electrical current or data, and a repellent bonded to at least one component of the cable. The means for facilitating transmission of electrical current or data include, but are not limited to, wires and optical fibers. The cable may include additional internal components, such as one or more separators and a sheath. The repellent is configured to repel rodents, based on a negative olfactory stimulus when the rodents are subjected to the repellent. This will deter rodents from chewing on wire or cable containing the repellent, which will significantly reduce the incidence of fires of undetermined origin and rodent-inflicted damage to wiring systems universally.

An opto-electrical cable may include an opto-electrical cable core and a polymer layer surrounding the opto-electrical cable core. The opto-electrical cable core may include a wire, one or more channels extending longitudinally along the wire, and one or more optical fibers extending within each channel. The opto-electrical cable may be made by a method that includes providing a wire having a channel, providing optical fibers within the channel to form an opto-electrical cable core, and applying a polymer layer around the opto-electrical cable core. A multi-component cable may include one or more electrical conductor cables and one or more opto-electrical cables arranged in a coax, triad, quad configuration, or hepta configuration. Deformable polymer may surround the opto-electrical cables and electrical conductor cables.

A fiber optic cable assembly for terminating a cable using an interior seal component in a passage of a retention body and methods for making the same. The interior seal component inhibits a bonding material from passing through to unintended portions of the retention body, and also serves to position the cable within the retention body during termination. Embodiments may include an optional end seal for inhibiting the bonding agent from escaping the retention body.