Abstract: A method and a system for providing a low absorption Bragg grating along a grating region of an optical fiber are presented. The Bragg grating is written along the grating region by multiphoton absorption of ultrafast light pulses impinged on this grating region through a polymer coating of the optical fiber. The Bragg grating is then photobleached by propagating a photobleaching light beam along the optical fiber. The photobleaching light beam has optical parameters selected to reduce defects in the grating region induced by the writing of the Bragg grating in a substantially non-thermal regime.

Abstract: Described herein are devices incorporating Casimir cavities, which modify the quantum vacuum mode distribution within the cavities. The Casimir cavities can create energy differences within layers or device to drive energy from or to a portion of a layer disposed adjacent to or contiguous with the Casimir cavity by modifying the quantum vacuum mode distribution incident on one portion of the layer to be different from the quantum vacuum mode distribution incident on another portion of the layer. Additionally, Casimir cavities in which the cavity layer comprises a conductor that can be used to carry a flow of electrical power induced by the presence of the Casimir cavity.

Abstract: A method of making a photonic device includes depositing a cladding layer over a silicon layer. The method further includes patterning the cladding layer to expose a first portion of the silicon layer, wherein a second portion of the silicon layer is covered by the patterned cladding layer, and a waveguide portion is in the second portion of the silicon layer. The method further includes depositing a low refractive index layer directly over the patterned cladding layer, wherein a refractive index of the low refractive index layer is less than a refractive index of silicon nitride.

Abstract: A grating coupler integrated in a photonically-enabled circuit and a method for fabricating the same are disclosed herein. In some embodiments, the grating coupler includes a substrate comprising a silicon wafer, a first grating region etched into the substrate, wherein the first grating region comprises a first plurality of gratings having a first predetermined height, and a second grating region etched into the substrate, wherein the second grating region comprises a second plurality of gratings having a second predetermined height and wherein the first and second predetermined heights are not identical.

Abstract: An ear gel module for an earpiece includes an ear gel having opposite inner and outer surfaces and first and second light guides each having respective opposite first and second ends. The first end of the first light guide is secured to the inner surface of the ear gel, and the first end of the second light guide is secured to the inner surface of the ear gel in adjacent spaced-apart relationship with the third light guide first end. The second ends of the first and second light guides are configured to be attached to and in optical communication with respective light guides extending from a sensor module within the earpiece when the ear gel module is attached to the earpiece.

Abstract: The present invention provides a polymer optical waveguide having a core, an under cladding and an over cladding, in which: the polymer optical waveguide has a first section on one end side in the light propagation direction where no portion of the over cladding exists and the core and the under cladding are exposed, and a second section on the other end side in the light propagation direction where the core is covered with the under cladding and the over cladding; and a relative refractive index difference among the core, the under cladding and the over cladding, a core width and core height in an end surface at the one end side of the first section, and a core width and core height in an end surface at the other end side of the second section satisfy predetermined relationships.

Abstract: The present disclosure relates to a photocurable composition for 3D printing for producing a patient-specific splint or cast. The photocurable composition easily produces a splint or cast conforming to the patient's body shape using 3D printing and makes it possible to adjust the immobilizing force of the splint or cast. In addition, the present disclosure provides a patient-specific splint or cast using a photocurable composition for 3D printing, which may produce a splint or cast, which may provide a necessary degree of compression by adjusting the immobilizing force thereof and is attachable and detectable as needed.

Abstract: A composite is provided to include an elastomer substrate comprising methyl groups. The composite may also include a layer of glass comprising SiO2 formed over the elastomer substrate. A method of fabricating the composite is provided. The method may include diffusing an ozone-rich gas into the substrate of an elastomer substrate comprising methyl groups. The method may also include exposing the elastomer substrate to UV radiation for a period of time. The method may further include converting a surface portion of the elastomer substrate into a layer of glass formed over the elastomer substrate.

Abstract: An optical connector includes: at least a ferrule and n self-forming optical waveguides, wherein the ferrule includes n optical fiber insertion holes, and optical fibers are each inserted into and included in the optical fiber insertion holes, the number n indicates a natural number not including zero, there are variations in an angle of each optical fiber in a core axial direction and a core gap between adjacent ones of the optical fibers, an end surface of the ferrule is formed with roundness, and end portions of the self-forming optical waveguides are each optically connected to the optical fibers.

Abstract: The present invention discloses a hybrid (mixed) formulation composition for 3D additive manufacturing and a manufacturing process. The hybrid formulation composition possesses capability of UV radiation curing and thermal curing. The hybrid formulation composition is designed to be cured by UV radiation in the 3D printing/additive manufacturing process and then post cure by heat to get its final properties. The hybrid formulation composition consists of acrylates (oligomer, monomer, and diluent), photoinitiators, and isocyanate-containing prepolymers which comprises polyols (di-ol, tri-ol) and isocyanates. The hybrid formulation composition may also include reaction accelerator, dye, pigment, and fillers. The finished products of the hybrid formulation composition possess rubber-like properties and can be used in the applications such as shoe sole, toys, medical, and wearables goods . . . etc.

Abstract: The present invention provides a display cover, which includes a light transmission layer, a window pattern disposed on the light transmitting layer, at least one light source disposed on the light transmission layer or the window pattern, and a light conduction layer disposed on the light transmission layer to cover the window pattern and the at least one light source. The window pattern is designed corresponding to a predetermined pattern, so as to define a light transmission window of the predetermined pattern in the light transmission layer. Moreover, at least one light guide structure is disposed on one side of the light conduction layer facing away from the light transmission layer. The at least one light guide structure is configured to at least partially guide light emitted from the at least one light source to the light transmission window.

Abstract: A network device includes an enclosure, a multi-chip module (MCM), an optical-to-optical connector, and a multi-core fiber (MCF) interconnect. The enclosure has a panel. The MCM is inside the enclosure. The optical-to-optical connector, which is mounted on the panel of the enclosure, is configured to transfer a plurality of optical communication signals. The MCF interconnect includes multiple fiber cores for routing the plurality of optical communication signals between the MCM and the panel. The MCF has a first end at which the multiple fiber cores are coupled to the MCM, and a second end at which the multiple fiber cores are connected to the optical-to-optical connector on the panel.

Abstract: A temperature measuring device using an optical fiber Bragg grating sensor is proposed, which includes: an optical fiber wound one or more times on a ring part, which has a preset diameter by rotating a part of the optical fiber once, thereby maintaining a predetermined shape; a housing in which the optical fiber is arranged; and an optical fiber Bragg grating sensor provided in a straight line part of the optical fiber, and thus the present invention prevents deformation of the optical fiber and the optical fiber Bragg grating sensor, which are arranged to be spaced apart at a predetermined distance in the housing, even when deformation occurs in the housing according to a change in the outside temperature, thereby accurately measuring temperature without distortion.

Abstract: Specific management of configuration of overlap of facets reduces non-uniformity in an image outcoupled toward a nominal point of observation. A waveguide including at least two parallel surfaces, first, middle, and last partially reflecting facets are configured such that in a geometrical projection of the facets onto one of the surfaces the facets overlap, preferably with adjacent facets overlapping and non-adjacent facets starts and ends coinciding along at least a portion of the waveguide.

Abstract: The present invention discloses a hybrid (mixed) formulation composition for 3D additive manufacturing and a manufacturing process. The hybrid formulation composition possesses capability of UV radiation curing and thermal curing. The hybrid formulation composition is designed to be cured by UV radiation in the 3D printing/additive manufacturing process and then post cure by heat to get its final properties. The hybrid formulation composition consists of acrylates (oligomer, monomer, and diluent), photoinitiators, and isocyanate-containing prepolymers which comprises polyols (di-ol, tri-ol) and isocyanates. The hybrid formulation composition may also include reaction accelerator, dye, pigment, and fillers. The finished products of the hybrid formulation composition possess rubber-like properties and can be used in the applications such as shoe sole, toys, medical, and wearables goods . . . etc.

Abstract: A method for forming a side-pumped optical fiber combiner includes ablating a cladding of a signal fiber to form an angled notch in the cladding. The signal fiber includes a core and the cladding surrounding the core. The method further includes inserting a cladding-free end of a pump fiber into the angled notch. The pump fiber includes a core and a cladding, the cladding-free end including the core of the pump fiber and free from the cladding of the pump fiber. The method further includes fusing the cladding-free end to the signal fiber.

Abstract: The invention relates to a container for holding a photosensitive liquid for use in a stereolithographic system in which a reference layer is exposed to radiation for the layer-by-layer or continuous creation of workpieces. At least one element of the container which is directly adjacent to the reference layer consists of at least one material which is at least partially transparent to the radiation and at least some of which has structures and/or pores which can receive and discharge, preferably also store, an inhibitor and/or an inhibitor mixture. Therefore, the element is not just able to supply the inhibitor but to a significant extent consists of the inhibitor itself, as a result of which the supplied flow is equalized or homogenized. Rapid or even continuous 3D printing is thus made possible in a cost-effective manner.

Abstract: Embodiments include a fiber optic probe comprising an optical fiber, and a sensor component attached to the optical fiber, the sensor component including an asymmetric microlens array imprinted on a stimuli-responsive hydrogel. Embodiments further include a method of fabricating a fiber optic probe comprising depositing a stimuli-responsive hydrogel precursor solution on a substrate mold, the substrate mold including a concave asymmetric microlens array; contacting an end of an optical fiber with the stimuli-responsive hydrogel precursor solution deposited on the substrate mold; and exposing the end of the optical fiber and the stimuli-responsive hydrogel precursor solution to light to form a stimuli-responsive hydrogel sensor imprinted with a convex asymmetric microlens array and attached to the end of the optical fiber. Embodiments further include systems comprising the fiber optic probes.

Abstract: The present invention discloses a hybrid (mixed) formulation composition for 3D additive manufacturing and a manufacturing process. The hybrid formulation composition possesses capability of UV radiation curing and thermal curing. The hybrid formulation composition is designed to be cured by UV radiation in the 3D printing/additive manufacturing process and then post cure by heat to get its final properties. The hybrid formulation composition consists of acrylates (oligomer, monomer, and diluent), photoinitiators, and isocyanate-containing prepolymers which comprises poly-ols (di-ol, tri-ol), urea, urethane, and isocyanates. The hybrid formulation composition may also include reaction accelerator, dye, pigment, and fillers. The finished products of the hybrid formulation composition possess rubber-like properties and can be used in the applications such as shoe sole, toys, medical, and wearables goods . . . etc.

Abstract: A system forms, at an end of a multifiber ribbon cable, a multifiber ribbon cable segment having an enlarged core-to-core spacing. A UV-transparent mold is mounted on top of a chassis. The mold defines a plurality of individual fiber channels corresponding to individual fibers of the existing multifiber ribbon cable and having a spacing equal to that of the enlarged core-to-core spacing. Each individual fiber channel passes through the internal cavity. The assembled mold further includes an injection system for receiving light curable, flowable material from the reservoir and pumping system and feeding it into the internal cavity, and at least one vent for allowing air to escape from the internal cavity as the light-curable, flowable material is fed into the internal cavity. The injected material is cured by exposure to a curing light.

Abstract: A traceable cable includes at least one data transmission element, a jacket at least partially surrounding the at least one data transmission element, and a tracing optical fiber incorporated with and extending along at least a portion of a length of the cable. The tracing optical fiber includes a core having a first index of refraction and a cladding having a second index of refraction. The traceable cable also includes at least one launch point provided through at least a portion of the jacket for optically accessing the tracing optical fiber. The launch point includes an optical medium accessible from an exterior of the jacket and in contact with the tracing optical fiber, wherein the optical medium is substantially index-matched to the core of the tracing optical fiber. Related systems and methods are also disclosed.

Abstract: A wafer metrology system includes an interferometer sub-system and a controller. The interferometer sub-system is configured to generate an interferogram with an intensity map that corresponds to a modulated representation of a wafer surface. Further, the interferometer sub-system includes a detector configured to capture the interferogram. The controller includes one or more processors configured to generate a wrapped phase map of the interferogram, define patterns associated with features on the wafer, and correct phase discontinuities by applying a phase unwrapping procedure to the wrapped phase map to generate an unwrapped phase map and correcting phase discontinuities in the unwrapped phase map based on the patterns, or by combining phase unwrapping and correction in a unified step. Further, the patterns comprise two or more structures such that a portion of the unwrapped phase map associated with structures of the same type is continuous across borders separating structures of the same type.

Abstract: A COA type liquid crystal display panel and a method for manufacturing the same are disclosed. The photoresist layer comprises a white, a red, a green, and a blue photoresist. The spacer layer is formed with at least one color of photoresists at the same time, and the material is the same. The photo spacer layer using photoresist as material of the prior art is eliminated. Thus the production requires less time and the efficiency is higher. The method comprises forming a photoresist layer composed of a white, a red, a green, and a blue photoresist on the TFT layer, and forming a spacer layer at the same time when forming the corresponding photoresist using at least one color of photoresist material. The manufacture process for making the photo spacer layer of the prior art is eliminated to save the mask, shorten the production time and increase the production efficiency.

Abstract: This invention relates to a method for preparing an organic film at the surface of a solid support, with a step of contacting said surface with a liquid solution including (i) at least one protic solvent, (ii) at least one adhesion primer, and (iii) at least one monomer different from the adhesion primer and radically polymerisable, under non-electrochemical conditions, and allowing the formation of radical entities based on the adhesion primer. This invention also relates to a non-electrically-conductive solid support on which an organic film according to said method is grafted, and a kit for preparing an essentially polymeric organic film at the surface of a solid support.

Abstract: A light diffusion member includes a light transmissive substrate, a plurality of light diffusion sections formed on one surface of the substrate, a light shielding layer formed in a region other than formation regions of the light diffusion sections on the one surface of the substrate, and light scattering bodies. The light diffusion sections have a light emitting end surface on the substrate side and a light incident end surface having an area greater than an area of the light emitting end surface on a side opposite to the substrate side. A height from the light incident end surface to the light emitting end surface of each of the light diffusion sections is greater than a thickness of the light shielding layer. The light scattering bodies are disposed further on a light emitting side than the light diffusion sections.

Abstract: A display element for an electronic module configured as an optical waveguide arrangement is provided. The display element includes a first optical waveguide part with a first light-receiving surface and a first light-emitting surface. The display element further includes a second optical waveguide part with a second light-receiving surface and a second light-emitting surface. The first optical waveguide part and the second optical waveguide part are arranged opposite one another. A first guide is arranged on an inner side of the first optical waveguide part and a second guide is arranged on an inner side of the second optical waveguide part. The respective inner sides are arranged in relation to one another such that the designation label is configured to be fastened by the first and second guide.

Abstract: A method for creating a highly accurate nanostructure is provided, the method includes: (i) creating a highly accurate nanostructure prototype, wherein the highly accurate nanostructure prototype, when illuminated with a predefined illumination, provides a unique optical pattern; (ii) creating at least one highly accurate nanostructure mold from the highly accurate nanostructure prototype, wherein each highly accurate nanostructure mold enables a creation of a highly accurate nanostructure that is substantially similar to the highly accurate nano structure prototype and which, when illuminated with the predefined illumination, provides the unique optical pattern; and (iii) molding the highly accurate nano structure using the highly accurate nano structure mold, wherein the highly accurate nanostructure, when illuminated with the predefined illumination, provides the unique optical pattern.

Abstract: An optical element includes a light guide plate that has therein a light transmissive flat plate member on which a transflective layer is formed, and a layer of a light transmissive adhesive or a light transmissive resin layer that uniformly covers the light guide plate. The refractive index of the layer of the adhesive or the resin layer is set to a refractive index different from that of the light guide plate. A first surface of the layer of the adhesive or the resin layer that is on the light exit surface side of the light guide plate is kept parallel with a second surface of the layer of the adhesive or the resin layer that is on the opposite side to the light exit surface side of the light guide plate.

Abstract: A method including the steps of providing a light-diffusing optical fiber (12a) having a glass core (20), a cladding (40) surrounding the core (20), and a plurality of nano-sized structures in the form of voids (32) situated within said core (20) or at a core-cladding boundary; cleaving the light-diffusing fiber (12a), thereby forming a cleaved end face (66); and applying energy to one or more of 1) the cleaved end face (66) and 2) the light-diffusing fiber (12b) along a portion of the length thereof adjacent the cleaved end face (66), the amount of energy being sufficient to collapse and seal the voids (32) exposed at the cleaved end face (66), leaving a sealed cleaved end face (68). A lens may then be attached to the sealed cleaved end face (68), or the sealed cleaved end face (68) may be softened sufficiently to induce formation of a lensing surface such as a convex lensing surface (60) on the sealed end face (68).

Abstract: A method including the steps of providing a light-diffusing optical fiber (12a) having a glass core (20), a cladding (40) surrounding the core (20), and a plurality of nano-sized structures in the form of voids (32) situated within said core (20) or at a core-cladding boundary; cleaving the light-diffusing fiber (12a), thereby forming a cleaved end face (66); and applying energy to one or more of 1) the cleaved end face (66) and 2) the light-diffusing fiber (12b) along a portion of the length thereof adjacent the cleaved end face (66), the amount of energy being sufficient to collapse and seal the voids (32) exposed at the cleaved end face (66), leaving a sealed cleaved end face (68). A lens may then be attached to the sealed cleaved end face (68), or the sealed cleaved end face (68) may be softened sufficiently to induce formation of a lensing surface such as a convex lensing surface (60) on the sealed end face (68).

Abstract: Provided is a light guide plate for a liquid crystal screen display apparatus providing a favorable visual effect. The printing data of a light reflection pattern stored in a computer is transferred to an inkjet printer to allow the inkjet printer to subject a substantially-rectangular printing face surrounded by upper and lower and left and right edges of a light guide plate to a reflective printing for diffusing light emitted from a light source into the interior of the light guide plate. The printing data for performing the reflective printing is prepared so that a printing density is increased from the edges in the four directions corresponding to the edges in the four directions of the light guide plate toward one or more high density setting points set in front of the respective opposed edges. The reflective printing is performed using white ink including titanium oxide.

Abstract: A production method of an optical waveguide includes: preparing a laminated body that includes a first clad layer and at least a core layer laminated on the first clad layer; forming a light propagating optical waveguide core by cutting the core layer by use of a dicing saw from a side where the core layer is laminated while intruding an edge of a blade portion of the dicing saw into the first clad layer so as to partially cut the first clad layer; and embedding at least a cut portion of the laminated body with a second clad layer.

Abstract: An apparatus for estimating at least one parameter in a downhole environment includes: an optical fiber configured to be disposed in a borehole, the optical fiber having a property that causes intrinsic backscattering of signals transmitted therein. The property varies along a length of the optical fiber to generate a variable intensity of the backscattering, the intensity of backscattering varying along the optical fiber as a function of distance from an end of the optical fiber. The apparatus also includes a light source configured to send an optical signal into the optical fiber; and a detector configured to receive a return signal including backscattered signals.

Abstract: Optical elements of a light guide plate are formed by repeatedly aligning convex parts in a longitudinal direction of the optical elements. Concave/convex shaped parts whose recess amount and/or protrusion amount are not constant are formed by three-dimensional curved surfaces that constitute the convex parts. An optical path of light that enters from an incident light surface of the light guide plate is modified by the concave/convex shaped parts that constitute the optical elements as the light progresses through the inside of the light guide plate, and thereby the light is diffused. Further, since the recess amount and/or protrusion amount of the concave/convex shaped parts are not constant, the optical path of light progressing through the inside of the light guide plate is modified randomly, and therefore a light diffusing effect is efficiently exhibited.

Abstract: A method for manufacturing a light guide plate, such as a sign or guide display board, that guides light incoming from a side surface of a substrate thereof and guides the light outgoing from a major surface thereof. The method includes arranging fabrication dots in a matrix shape at a rectangular distal surface of a ultrasonic fabrication horn, forming, on a major surface of the light guide plate substrate, reflection dots corresponding to the fabrication dots on the distal surface upon pressing the distal surface of the ultrasonic fabrication horn to the major surface of the light guide plate substrate, and forming the reflection dots in a prescribed range on the major surface of the light guide plate substrate by repeating formation of the reflection dot upon correlative movement of the ultrasonic fabrication horn within the major surface with respect to the light guide plate substrate.

Abstract: Aimed at providing a method for molding a thermoplastic resin product and a molding apparatus therefor that enable productivity, transfer quality or the like to be improved. Provided is a method for molding a thermoplastic resin product that includes a heating step, a transfer step, a cooling step and a mold-releasing step, and wherein, in the heating step, a stamper is irradiated with infrared rays in a state where a cooling member is not irradiated with infrared rays, and at least in the final stage of the transfer step, the stamper and the cooling member are brought into contact.

Abstract: The present invention relates to a production process for an optical waveguide comprising a step for forming a photosensitive resin layer comprising a photosensitive resin composition on a substrate, a step for exposing a desired pattern and a step for carrying out development in an alkaline developer containing a divalent or higher-valent metal ion and a production process for an optical waveguide comprising a step for forming a photosensitive resin layer comprising a photosensitive resin composition on a substrate, a step for exposing a desired pattern, a step for carrying out development in an alkaline developer and a step for carrying out washing with a cleaning liquid containing a divalent or higher-valent metal ion or an acid aqueous solution. Capable of being provided are a production process for an optical waveguide which is excellent in a transparency and a reliability and an optical waveguide produced by the above production process.

Abstract: Provided is an optical printed circuit board, including: a first insulating layer on which at least one receiving groove with an inclined angle on at least one end is formed; an optical waveguide which is formed in the receiving groove of the first insulating layer; and a second insulating layer which is formed on the first insulating layer and buries the optical waveguide formed in the receiving groove.

Abstract: An elongate element (300) for a flexible pipe body (100) and method of producing the same are disclosed. The method includes inserting a first fibre element (304) in a crush resistant elongate tube element (302), wherein the first fibre element is suitable for monitoring at least one of strain, temperature and acoustic properties; inserting a further fibre element (306) in the tube element, wherein the further fibre element is suitable for curing a matrix material (308); and inserting a matrix material into the tube element to fill at least a length of the tube element such that the first and further fibres elements within that length are surrounded by matrix material.

Abstract: Even though no light source is provided in the vicinity of each curved apex of a main face, the brightness difference depending on the location on the main face is reduced, and a light guide plate that contributes to electric power saving can be provided. A display and a traffic sign including the display that can keep a small brightness difference depending on the location on the main face, and reduce the power consumption. The ratio of the area of the first diffusion dots and second diffusion dots within the second diffusion region is greater than the ratio of the area of the first diffusion dots within the first diffusion region. Even though no light source unit is provided at a curved section, the brightness difference (the unevenness of brightness) depending on the location on the entire main face is reduced, and electric power saving can be achieved.

Abstract: An optical interposer that includes a glass substrate having one or more optical vias extending through the glass substrate. A first optical polymer may be bonded to the substrate and to interior surfaces of the one or more optical vias. Implementations include one or more optical via cores comprising a second optical polymer that has a greater refractive index than the first optical polymer. The one or more optical via cores may be at least partially surrounded by the first optical polymer. Embodiments include encapsulated optical waveguides in communication with the optical vias and/or via cores. Example implementations include layers of electrical insulation, electrical traces, and electrical vias. A method of manufacture includes forming the optical vias by laser ablation. Certain embodiments may include chemically etching the inside of the vias to improve surface roughness.

Abstract: Methods of forming a total-internal-reflection (TIR) optical fiber lens are disclosed. The methods include heating an end of an optical fiber with a defocused infrared laser beam to form a bulbous tip having a curved outer surface that defines a lens surface. The bulbous tip is laser cleaved to define a TIR facet. Light traveling in the fiber diverges at an effective fiber end and is reflected by the TIR facet through the lens surface to form an image at an image plane.

Abstract: A calibration assembly has a base and mounting elements to mount the base to a laser. The base has a front, middle and rear portions that are used to align the calibration assembly to the laser to cleave optical fibers with the laser. The front portion has a channel to receive the optical fibers, the middle portion has openings to confirm alignment of the laser; and the rear portion has a rear opening used to adjust the pitch and roll of the laser.

Abstract: Disclosed are an optical member, a display device including the optical member and a method of fabricating the optical member. The display device includes a light source; a wavelength conversion member into which light generated from the light source is incident; and a display panel into which light is incident from the wavelength conversion member. The wavelength conversion member includes a receiving part having a pipe shape; a matrix in the receiving part; and a plurality of wavelength conversion particles disposed in the matrix to convert a wavelength of the light generated from the light source.

Abstract: A structure for coupling an optical signal between an integrated circuit photonic structure and an external optical fiber is disclosed as in a method of formation. The coupling structure is sloped relative to a horizontal surface of the photonic structure such that light entering or leaving the photonic structure is substantially normal to its upper surface.

Abstract: The present invention relates to a method for continuously producing light guide plates, e.g. for use as backlighting in LC displays, and to an apparatus for carrying out said method.

Abstract: An optical waveguide production method, employs a light-transmissive mold having higher dimensional accuracy for formation of an over-cladding layer. The mold for the formation of the over-cladding layer is unitarily produced by molding a light-transmissive resin with the use of a mold component having the same shape as the over-cladding layer. A recess formed in the mold by removing the mold component in the production of the mold serves as a cavity for the formation of the over-cladding layer. For the formation of the over-cladding layer, a photosensitive resin for the over-cladding layer is injected into the cavity of the mold, and exposed through the mold to be cured while a core formed in a predetermined pattern on a surface of an under-cladding layer is immersed in the photosensitive resin.

Abstract: To provide a light guide member such that more uniform brightness can be ensured in a wide region. A light guide member according to the present invention that receives light through side surfaces and outputs the light through main surfaces includes recesses formed by a machine in at least one of the main surfaces in a groove-like or dot-like shape, the recesses having bottom surfaces formed of molten material at the deepest part of the recesses. Thus, there can be provided the light guide member that has the groove-like or dot-like recesses with the bottom surfaces formed by a molten mark and that can output light with more uniform brightness through the main surfaces when a wide region is observed.

Abstract: This disclosure teaches an optical transposer that provides “passive” alignment between optical waveguides in a silicon photonics die seated within a receptacle that is formed in a body member of the optical transposer and corresponding optical waveguides that are precisely dimensioned and located within the body member via laser scribing. The manufacturing method and optical transposer configuration taught herein allow for essentially automated placement (e.g., seating and gluing) of silicon photonics dies within corresponding optical transposer receptacles, without need for controlling final die alignment/placement as a function of measured optical insertion loss. In particular, such passive alignment is obtained via accurate dimensioning of the receptacles relative to the dies and by precise positioning of the entry points into the receptacles of the optical waveguides that are laser scribed into the body member of the optical transposer.

Abstract: The first aspect of the instant claimed invention is a method of formulating radiation curable Supercoatings for application to an optical fiber used in a telecommunications network. A Multi-layer Film Drawdown Method useful in the Method of formulating radiation curable Supercoatings is also described and claimed. Single mode Optical fibers coated with specific radiation curable Supercoatings are also described and claimed.