Disclosed herein are compositions for coating an optical fiber containing an optional reactive monomer and/or oligomer, a self-healing component with self-healing moieties, an initiator component, and optionally an additive component. The self-healing component preferably includes polymerizable moieties. Such compositions contain greater than 30% by weight of the self-healing component, and/or greater than 0.015 equivalents of self-healing moieties per 100 g of the composition. Also disclosed herein are coated optical fibers having a glass fiber, at least one coating layer and an optional ink layer, which are configured to possess self-healing properties and/or stress relaxation behavior. Further disclosed are methods for coating self-healing optical fibers, and optical fiber cables comprising a one or more self-healing coated optical fibers.

A thermoplastic filament comprising multiple polymers of differing flow temperatures in a regular geometric arrangement, and a method for producing such a filament, are described. Because of the difference in flow temperatures, there exists a temperature range at which one polymer is mechanically stable while the other is flowable. This property is extremely useful for creating thermoplastic monofilament feedstock for three-dimensionally printed parts, wherein the mechanically stable polymer enables geometric stability while the flowable polymer can fill gaps and provide strong bonding and homogenization between deposited material lines and layers. These multimaterial filaments can be produced via thermal drawing from a thermoplastic preform, which itself can be three-dimensionally printed. Furthermore, the preform can be printed with precisely controlled and complex geometries, enabling the creation of monofilament and fiber with unique decorative or functional properties.

A method for fabrication a multifiber cable assembly is provided. The method includes selecting a plurality of optical fibers that each have a respective cladding diameter, determining a maximum fiber core position error for the plurality of optical fibers in a plurality of configurations, and determining a desired order of the plurality of optical fibers that minimizes the maximum fiber position total error.

A fiber optic assembly is provided including a support substrate having a substantially flat surface and a signal-fiber array supported on the support substrate. The signal-fiber array includes a plurality of optical fibers. Al least some of the optical fiber of the plurality of optical fibers includes a first datum contact disposed between the optical fiber and an adjacent optical fiber and each of the optical fibers of the plurality of optical fibers includes a second datum contact disposed between each of the optical fibers of the plurality of optical fibers and the support substrate. A first datum surface is disposed at a top surface of each of the plurality of optical fibers opposite the support surface.

A fiber optic assembly is provided including a support substrate having a substantially planar surface, a signal-fiber array supported on the planar surface of the support substrate. The signal-fiber array including a plurality of optical fibers and an adhesive disposed on the plurality of optical fibers and the support substrate. Each of the optical fibers is spaced from adjacent optical fibers of the plurality of optical fibers at a precise pitch.

A method of forming a coaxial wire that includes providing a sacrificial trace structure using an additive forming method, the sacrificial trace structure having a geometry for the coaxial wire, and forming a continuous seed metal layer on the sacrificial trace structure. The sacrificial trace structure may be removed and a first interconnect metal layer may be formed on the continuous seed layer. An electrically insulative layer may then be formed on the first interconnect metal layer, and a second interconnect metal layer is formed on the electrically insulative layer. Thereafter, a dielectric material is formed on the second interconnect metal layer to encapsulate a majority of an assembly of the first interconnect metal layer, electrically insulative layer and second interconnect metal layer that provides said coaxial wire. Ends of the coaxial wire may be exposed through opposing surfaces of the dielectric material to provide that the coaxial wire extends through that dielectric material.

A circumferentially light-emitting thermoplastic resin molded body which can be bent for use according to the type of optical ornaments or the shape of an object to be decorated and which allows the overall luminance of the emitted light to improve and restrains the luminescent color from being yellowed at the distal locations of such body with regard to the light source. The thermoplastic resin molded body has a core layer made from a thermoplastic elastomer; and a first clad layer made from a thermoplastic resin whose refractive index is smaller than the thermoplastic elastomer from which the core layer is made, in which a light diffusing agent is added to the thermoplastic elastomer from which the core layer is made and the thermoplastic resin from which the first clad layer is made respectively; and the total light transmittance of the first clad layer is defined as less than 70%.

Embodiments relate to a polymer waveguide including a substrate, a cladding layer made of a first polymer, formed on the substrate, wherein a first monomer is polymerized into the first polymer, and the cladding layer has a groove for the waveguide by removing part of the cladding layer, and a core accommodating graphene therein, formed on the groove, a method for manufacturing the same, and a passively mode-locked laser based on the polymer waveguide.

A method is provided for fabricating a passive optical sensor on a tip of an optical fiber. The method includes perpendicularly cleaving a tip of an optical fiber and mounting the tip of the optical fiber in a specimen holder of a photosensitive polymer three-dimensional micromachining machine. The method includes forming a three-dimensional microscopic optical structure within the photosensitive polymer that comprises a two cavity Fabry-Perot Interferometer (FPI) having a hinged optical layer that is pivotally coupled to a suspended structure. The method includes removing an uncured portion of the photosensitive polymer using a solvent. The method includes depositing a reflective layer on a mirror surface of the hinged optical layer. The method includes positioning the pivotally hinged optical layer to a closed position with the suspended structure, aligning the mirror surface with the cleaved tip of the optical fiber.

A thermoplastic filament comprising multiple polymers of differing flow temperatures in a geometric arrangement and an interior channel containing a structural or functional thread therein is described. A method for producing such a filament is also described. Because of the difference in flow temperatures, there exists a temperature range at which one polymer is mechanically stable while the other is flowable. This property is extremely useful for creating thermoplastic monofilament feedstock for three-dimensionally printed parts, wherein the mechanically stable polymer enables geometric stability while the flowable polymer can fill gaps and provide strong bonding and homogenization between deposited material lines and layers. These multimaterial filaments can be produced via thermal drawing from a thermoplastic preform, which itself can be three-dimensionally printed. Furthermore, the preform can be printed with precisely controlled and complex geometries, enabling the creation of a filament or fiber with an interior thread contained within the outer, printed filament or fiber. This thread adds structural reinforcement or functional properties, such as electrical conductivity or optical waveguiding, to the filament.