Abstract: An optoelectronic coupling system and methods of forming the same include an optoelectronic chip mounted on a substrate. The optoelectronic chip includes one or more optoelectronic components. A lower lens array is positioned over the optoelectronic chip and has a lower surface, with a first cut-away portion to accommodate the optoelectronic chip, and an upper surface that has one or more lower lenses positioned over respective optoelectronic components. An upper lens array is positioned over the lower lens array and has comprising one or more upper lenses positioned over respective lower lenses.

Abstract: An optical device includes a substrate including a waveguide array formed therein, each waveguide having a reflective surface; a lens array unit including a waveguide-side lens array arranged facing the waveguide array so each lens of the lens array is aligned with the corresponding reflective surface; and a connector unit including an optical transmission path-side lens array arranged and fixed so each lens of the lens array is aligned with the corresponding lens in the waveguide-side lens array, the plurality of inserted optical transmission paths aligned with the corresponding lens in the optical transmission path-side lens array.

Abstract: Waveguide connector assembly device and methods of forming waveguide connectors include a cap having an inner portion to protect a connection end face of a polymer waveguide, wherein the cap includes one or more insertion structures to position the polymer waveguide in relation to one or more components of an assembled connector, and an inner wall to seal around the assembled connector to prevent contaminants from entering the inner portion.

Abstract: Waveguide connectors and methods of forming the same include heating a polymer waveguide having one or more waveguide cores and alignment features to a first temperature. A ferrule having alignment features is heated to the first temperature, the ferrule having a different coefficient of thermal expansion from the polymer waveguide. The alignment features of the polymer waveguide align with the alignment features of the ferrule when the polymer waveguide and the ferrule are heated to the first temperature. The polymer waveguide is positioned on the ferrule without a waveguide backfilm. The alignment features of the polymer waveguide are bonded to the corresponding alignment features of the ferrule.

Abstract: Waveguide connectors include a ferrule having first alignment features. A waveguide has one or more a topclad portions, each with a waveguide core, second alignment features fastened to the first alignment features, and underclad portion that is thicker than the one or more topclad portions.

Abstract: Waveguide connectors include a ferrule having first alignment features. A polymer waveguide has one or more a topclad portions, each with a waveguide core, second alignment features fastened to the first alignment features, and underclad portion that is thicker than the one or more topclad portions. The polymer waveguide has a higher coefficient of thermal expansion than the ferrule and is fastened to the ferrule under tension.

Abstract: A structure includes a combination of a stub fabricated on a polymer and a groove fabricated on a silicon (Si) chip, with which an adiabatic coupling can be realized by aligning a (single-mode) polymer waveguide (PWG) array fabricated on the polymer with a silicon waveguide (SiWG) array fabricated on the silicon chip. The stub fabricated on the polymer is patterned according to a nano-imprint process along with the PWG array in a direction in which the PWG array is fabricated. The groove fabricated on the silicon chip is fabricated along a direction in which the SiWG array is fabricated.

Abstract: Waveguide connectors and methods of forming the same include heating a polymer waveguide having one or more waveguide cores and alignment features to a first temperature. A ferrule having alignment features is heated to the first temperature, the ferrule having a different coefficient of thermal expansion from the polymer waveguide. The alignment features of the polymer waveguide align with the alignment features of the ferrule when the polymer waveguide and the ferrule are heated to the first temperature. The polymer waveguide is positioned on the ferrule without a waveguide backfilm. The alignment features of the polymer waveguide are bonded to the corresponding alignment features of the ferrule.

Abstract: Waveguide connectors include a ferrule having first alignment features. A polymer waveguide has one or more a topclad portions, each with a waveguide core, second alignment features fastened to the first alignment features, and underclad portion that is thicker than the one or more topclad portions. The polymer waveguide has a higher coefficient of thermal expansion than the ferrule and is fastened to the ferrule under tension.

Abstract: A structure includes a combination of a stub fabricated on a polymer and a groove fabricated on a silicon (Si) chip, with which an adiabatic coupling can be realized by aligning a (single-mode) polymer waveguide (PWG) array fabricated on the polymer with a silicon waveguide (SiWG) array fabricated on the silicon chip. The stub fabricated on the polymer is patterned according to a nano-imprint process along with the PWG array in a direction in which the PWG array is fabricated. The groove fabricated on the silicon chip is fabricated along a direction in which the SiWG array is fabricated.

Abstract: An optical device includes a substrate including a waveguide array formed therein, each waveguide having a reflective surface; a lens array unit including a waveguide-side lens array arranged facing the waveguide array so each lens of the lens array is aligned with the corresponding reflective surface; and a connector unit including an optical transmission path-side lens array arranged and fixed so each lens of the lens array is aligned with the corresponding lens in the waveguide-side lens array, the plurality of inserted optical transmission paths aligned with the corresponding lens in the optical transmission path-side lens array.

Abstract: Waveguide connectors and methods of forming the same include heating a polymer waveguide having one or more waveguide cores and alignment features to a first temperature. A ferrule having alignment features is heated to the first temperature, the ferrule having a different coefficient of thermal expansion from the polymer waveguide. The alignment features of the polymer waveguide align with the alignment features of the ferrule when the polymer waveguide and the ferrule are heated to the first temperature. The polymer waveguide is positioned on the ferrule. The alignment features of the polymer waveguide are bonded to the corresponding alignment features of the ferrule.

Abstract: Waveguide connectors and methods of forming the same include heating a polymer waveguide having one or more waveguide cores and alignment features to a first temperature. A ferrule having alignment features is heated to the first temperature, the ferrule having a different coefficient of thermal expansion from the polymer waveguide. The alignment features of the polymer waveguide align with the alignment features of the ferrule when the polymer waveguide and the ferrule are heated to the first temperature. The polymer waveguide is positioned on the ferrule without a waveguide backfilm. The alignment features of the polymer waveguide are bonded to the corresponding alignment features of the ferrule.

Abstract: High accuracy positioning relative to an absolute reference position (guide pin holes in ferrules, etc.) is provided for a plurality of cores constituting a polymer waveguide array for connection to ferrules at ends of a plurality of these assemblies to form a single-mode polymer waveguide array assembly. A method for forming a single-mode polymer waveguide array assembly enables a plurality of cores constituting a polymer waveguide array to be positioned with high accuracy. Also provided is a combination of process molds (an initial process mold and intermediate process mold) used in the processes unique to the present methods.

Abstract: High accuracy positioning relative to an absolute reference position (guide pin holes in ferrules, etc.) is provided for a plurality of cores constituting a polymer waveguide array for connection to ferrules at ends of a plurality of these assemblies to form a single-mode polymer waveguide array assembly. A method for forming a single-mode polymer waveguide array assembly enables a plurality of cores constituting a polymer waveguide array to be positioned with high accuracy. Also provided is a combination of process molds (an initial process mold and intermediate process mold) used in the processes unique to the present methods.

Abstract: A method for fabricating, and a structure embodying, a single-mode polymer wave guide array aligned with a polymer waveguide array through adiabatic coupling. The present invention provides a structure having a combination of (i) a stub fabricated on a polymer and (ii) a groove fabricated on a silicon (Si) chip, with which an adiabatic coupling can be realized by aligning (a) a (single-mode) polymer waveguide (PWG) array fabricated on the polymer with (b) a silicon waveguide (SiWG) array fabricated on the silicon chip; wherein, the stub fabricated on the polymer is patterned according to a nano-imprint process, along with the PWG array, in a direction in which the PWG array is fabricated, and the groove fabricated on the silicon chip is fabricated along a direction in which the SiWG array is fabricated.

Abstract: Methods for fabricating connectors for multilayered optical waveguides, as well as apparatuses for multilayered optical waveguides that embody ferrules and connectors. The method of fabricating a connector includes the steps of: stacking in a containing unit of a ferrule, a plurality of optical waveguides that are each preliminarily formed in the shape of layers; and injecting resin or adhesive through a space lying between the plurality of optical waveguides and the containing unit of the ferrule, with the plurality of optical waveguides contained in a stacked manner so that resin or adhesive reaches each of the plurality of optical waveguides.

Abstract: An information processing apparatus, a calculation method, a program, and a storage medium for generating a uniformly distributed discrete pattern. To calculate a spatial arrangement of a plurality of elements of a discrete pattern, the plurality of elements being arranged in a spatially discrete manner, an information processing apparatus according to the present invention determines, for each of the elements, a density in an initial position given to the element from a density distribution of the elements in a region where the elements are arranged in the discrete pattern and places, for the initial position of each of the elements, a figure having a size corresponding to the density and representing a region where the element repels other elements and a movement range of the figure. The information processing apparatus minimizes an objective function, computes an optimal solution, and outputs the optimal solutions.

Abstract: An information processing apparatus, a calculation method, a program, and a storage medium for generating a uniformly distributed discrete pattern. To calculate a spatial arrangement of a plurality of elements of a discrete pattern, the plurality of elements being arranged in a spatially discrete manner, an information processing apparatus according to the present invention determines, for each of the elements, a density in an initial position given to the element from a density distribution of the elements in a region where the elements are arranged in the discrete pattern and places, for the initial position of each of the elements, a figure having a size corresponding to the density and representing a region where the element repels other elements and a movement range of the figure. The information processing apparatus minimizes an objective function, computes an optimal solution, and outputs the optimal solutions.

Abstract: A method of forming a single-mode polymer waveguide array connector that provides precise alignment of a plurality of cores of polymer waveguide arrays with respect to an absolute reference position, such as a guide pin hole in a ferrule, when the polymer waveguide array connector is connected to another polymer waveguide array connector or provides precise alignment of a plurality of cores of a polymer waveguide array and a fiber array with respect to the absolute reference position when the polymer waveguide array connector is connected to a single-mode fiber array connector. A plurality of cores of single-mode polymer waveguide arrays or single-mode fiber arrays is precisely aligned with each other. In addition, there is provided a combination of a plurality of molds, e.g., a first mold (A) and a second mold (B), used in a plurality of processes in a specific method.