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 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: 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: 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: 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 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.

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 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.

Abstract: Alignment of a single-mode polymer waveguide (PWG) array fabricated on a polymer with a silicon waveguide (SiWG) array fabricated on a silicon (Si) chip and thereby realizing an adiabatic coupling. A stub and a groove are fabricated with high precision and made to function as the absolute positioning reference to provide a self-alignment according to the groove and the stub. In a PWG patterning by photolithography, plural masks are used, but the fabrication is made along the alignment base line for mask and thus a high precision is achieved with respect to error ?x. In a PWG patterning by nano imprint, a high precision in the fabrication is also achieved with respect to error ?x and ?y.

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: 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: Alignment of a single-mode polymer waveguide (PWG) array fabricated on a polymer with a silicon waveguide (SiWG) array fabricated on a silicon (Si) chip and thereby realizing an adiabatic coupling. A stub and a groove are fabricated with high precision and made to function as the absolute positioning reference to provide a self-alignment according to the groove and the stub. In a PWG patterning by photolithography, plural masks are used, but the fabrication is made along the alignment base line for mask and thus a high precision is achieved with respect to error ?x. In a PWG patterning by nano imprint, a high precision in the fabrication is also achieved with respect to error ?x and ?y.

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.

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 fiber to wafer interface system includes an interface device comprising a flexible substrate portion, a flexible cladding portion arranged on the substrate portion, a flexible single-mode waveguide portion arranged on the cladding portion including a substantially optically transparent material, a connector portion engaging a first distal end of the flexible substrate portion, the connector portion operative to engage a portion of an optical fiber ferrule, a wafer portion comprising a single mode waveguide portion arranged on a portion of the wafer, an adhesive disposed between a portion of the single mode waveguide portion of the body portion and the single mode waveguide portion of the wafer portion, the adhesive securing the body portion to the wafer portion.

Abstract: A fiber to wafer interface system includes an interface device comprising a flexible substrate portion, a flexible cladding portion arranged on the substrate portion, a flexible single-mode waveguide portion arranged on the cladding portion including a substantially optically transparent material, a connector portion engaging a first distal end of the flexible substrate portion, the connector portion operative to engage a portion of an optical fiber ferrule, a wafer portion comprising a single mode waveguide portion arranged on a portion of the wafer, an adhesive disposed between a portion of the single mode waveguide portion of the body portion and the single mode waveguide portion of the wafer portion, the adhesive securing the body portion to the wafer portion.

Abstract: An interface device includes a flexible substrate portion, a flexible cladding portion arranged on the substrate portion, a flexible single-mode waveguide portion arranged on the cladding portion including a substantially optically transparent material, a first engagement feature operative to engage a portion of a wafer, and a connector portion engaging a first distal end of the flexible substrate portion, the connector portion operative to engage a portion of an optical fiber ferrule.

Abstract: An optical coupling structure that interfaces between optical devices mounted on a substrate and optical waveguides formed in the substrate. A manufacturing method includes preparing a wafer formed on an inorganic solid material on a dicing tape and cutting the back surface of the wafer to form substantially angled portions using a dicing blade having a point angle. The dicing tape is stripped from the wafer and the wafer is separated at the valleys between the substantially angled portions to obtain an optical coupling element. The obtained optical coupling element is a three-dimensional polyhedral light-reflecting member having a mirror surface corresponding to a surface of the wafer. The obtained optical coupling element is inserted into a trench that opens, substantially perpendicular to an optical waveguide of an optical transmission substrate, in the main surface of the optical transmission substrate to provide a structure for optical coupling with the outside.