Abstract: A ferrule for an optical connector includes: a ferrule main body including: a connection end surface; an upper surface; a lower surface opposite to the upper surface in a vertical direction, and fiber holes into which optical fibers are inserted along a front-rear direction perpendicular to the vertical direction, and that are arranged in a left-right direction perpendicular to the vertical direction and the front-rear direction. The connection end surface is disposed on a front side in the front-rear direction. Inner diameters of rear end openings of the fiber holes are in a range of 204.6 to 230.0 ?m, wherein the rear end openings are disposed on a rear side opposite to the front side in the front-rear direction. A wall surface covers an entirety of the upper surface and the lower surface.

Abstract: A lens including a lens body and a support. The lens body includes at least one lens portion and at least one holding hole for holding at least one optical fiber. A central axis of the or each holding hole is positioned on a phantom line extending through an optical axis of the or a corresponding lens portion. The support includes a support body fixed to the lens body. With a first portion of the or each optical fiber securely received in the or a corresponding holding hole, a bottom face of the or each holding hole abuts an end face of the first portion of the or a corresponding optical fiber, a peripheral face of the or each holding hole partly abuts an outer peripheral face of the first portion of the or a corresponding optical fiber, and the support body supports a second portion of the or each optical fiber.

Abstract: Methods are disclosed for manufacturing a Micro-ElectroMechanical Systems (MEMS) scanning mirror. In an embodiment, one method includes depositing a hinge material on a substrate and removing first and second portions of the substrate to form an outer frame, an inner frame, and a mirror plate in the substrate. First and second portions of the hinge material rotationally couple the outer frame to the inner frame and the inner frame to the mirror plate for rotation about first and second orthogonal axes of rotation. In another embodiment, a third portion of the substrate rotationally couples the inner frame to the mirror plate. In still another embodiment, an elastomer material is configured as a bending hinge that rotationally couples the outer frame to the inner frame.

Abstract: A semiconductor package includes a PDA chip, a MOS chip, and a wiring plate including a first principal surface and a second principal surface, the first principal surface being provided with a first rigid plate that is non-conductive and a second rigid plate that is conductive, the PDA chip being fixed to the first rigid plate by using a non-conductive bonding agent, a lower surface terminal of the MOS chip being soldered to the second rigid plate, the second principal surface being provided with an input terminal and an output terminal, the input terminal being electrically connected to the PDA chip, the output terminal being electrically connected to the second rigid plate.

Abstract: An optical fiber connector comprises a multi-fiber ferrule having an array of grooves recessed relative to an upper surface of a medial portion thereof, wherein each groove has a depth greater than a maximum diameter of an uncoated fiber segment received therein, and is shaped such that an optical fiber received therein lacks contact with the groove over large arc length thereof (e.g., an arc spanning at least 120 or at least 150 degrees). A method for fabricating a multi-fiber connector with a multi-fiber ferrule includes flexing a medial portion of the ferrule into a non-linear configuration to expand an average width of at least some grooves defined in an upper surface of a medial portion thereof, receiving optical fibers in the grooves, pushing the fibers away from the bottom of each groove, and securing the optical fibers in the grooves.

Abstract: A device includes a spot size converter on a substrate. The substrate includes an optical fiber alignment structure formed thereon. The spot size converter is aligned with the optical fiber alignment structure. The spot size converter includes an oxide layer that has a first refractive index and includes a tapered section such that a first end of the spot size converter is smaller than a second end of the spot size converter. The spot size converter also includes a waveguide core in the oxide layer. The waveguide core is tapered and is smaller at the first end than at the second end of the spot size converter. The spot size converter further includes a cladding layer surrounding the oxide layer, the cladding layer having a second refractive index lower than the first refractive index of the oxide layer.

Abstract: Methods for laser bonding optical elements to substrates and optical assemblies are disclosed. According to one embodiment, a method of bonding an optical element to a substrate includes disposing at least one optical element onto a surface of the substrate, electrostatically affixing the at least one optical element to the surface of the substrate, and directing a laser beam into the at least one optical element. The laser beam heats an interface between at least one optical element and the substrate to a temperature that is higher than a lowest temperature of the optical element change temperature and the substrate change temperature, thereby forming a bond between at least one optical element and the substrate at a bond area. The laser beam has a fluence that does not modify the substrate at areas of the substrate that are outside of the at least one optical element.

Abstract: An optical fiber bundle structure includes: plural optical fiber core wires; a crossing preventing member; and a grasping member. Further, the crossing preventing member has slits and the widths of the slits positioned at the respective sides are each equal to or larger than a difference between: a length of one side of a polygon circumscribing the plural optical fiber core wires at a hindmost end portion of the slits at the trailing end; and a length of one side of a polygon circumscribing the plural optical fiber core wires at the leading end.

Abstract: An optical fiber bundle structure includes: plural optical fiber core wires; a crossing preventing member; and a grasping member. Further, the crossing preventing member has slits and the widths of the slits positioned at the respective sides are each equal to or larger than a difference between: a length of one side of a polygon circumscribing the plural optical fiber core wires at a hindmost end portion of the slits at the trailing end; and a length of one side of a polygon circumscribing the plural optical fiber core wires at the leading end.

Abstract: An optoelectronic device. The optoelectronic device comprising: a silicon-on-insulator platform, including: a silicon waveguide located within a silicon device layer of the platform, a substrate, and an insulator layer between the substrate and the silicon device layer; and a III-V semiconductor based device, located within a cavity of the silicon-on-insulator platform and including a III-V semiconductor based waveguide, coupled to the silicon waveguide; wherein the III-V semiconductor based device includes a heater and one or more electrical traces, connected to the heater, wherein the one or more electrical traces extend from the III-V semiconductor based device to respective contact pads on the silicon-on-insulator platform.

Abstract: Methods of forming an optical fiber assembly involve placing an adhesive in a ferrule assembly, heating the ferrule assembly through thermal induction, inserting an optical fiber into the ferrule bore during or after the heating step, and securing the optical fiber to the ferrule assembly using the adhesive. The thermal induction causes the adhesive to efficiently take or maintain a melted form to allow the optical fiber insertion.

Abstract: An optical fiber array includes a V-groove substrate in which a V-groove for optical fiber alignment is formed, a pressing plate laminated and bonded on the V-groove substrate, and an optical fiber bonded and fixed in the V-groove of the V-groove substrate, wherein a distance between the optical fiber and the V-groove is less than 20 ?m.

Abstract: An optical-fiber connector includes a coupling member, a core component, a sleeve member, a metal retaining member, and a pressing member. The core component is in the receiving space. The metal retaining member is connected to one of two ends of the coupling member. The elastic arm of the metal retaining member inclinedly extends toward the other end of the coupling member. Two sides of the elastic arm have a plurality of retaining structures. The sleeve member is at the other end of the coupling member and is connected to the pressing member. The pressing portion of the pressing member extends toward the elastic arm. The metal retaining member is adapted to be buckled with an adapter, so that the service life of the optical-fiber connector can be prolonged.

Abstract: An optical fiber bundle structure includes: plural optical fiber core wires; a crossing preventing member; and a grasping member. Further, the crossing preventing member has slits and the widths of the slits positioned at the respective sides are each equal to or larger than a difference between: a length of one side of a polygon circumscribing the plural optical fiber core wires at a hindmost end portion of the slits at the trailing end; and a length of one side of a polygon circumscribing the plural optical fiber core wires at the leading end.

Abstract: A light coupling element including a groove and a light redirecting member is described. The groove is for receiving and aligning an optical waveguide and incudes an open front end and a back end. The light redirecting member includes an input side for receiving light from an optical waveguide received and supported in the groove and a light redirecting side for changing a direction of light received from the input side. The groove may include a bottom surface extending between the front and back ends of the groove and including a raised bottom surface portion raised upwardly relative to an unraised bottom surface portion. The unraised bottom surface portion of the bottom surface may be disposed between the raised bottom surface portion of the bottom surface and the input side of the light redirecting member. Optical coupling assemblies including the light coupling element and an optical waveguide are described.

Abstract: In one example, an optoelectronic module may include a stack assembly including an electrical integrated circuit and an optical integrated circuit electrically and mechanically coupled to one another, an interposer electrically and mechanically coupled to the stack assembly, and an optical connector to optically couple the optical integrated circuit with an array of optical fibers.

Abstract: An optical-fiber holding component disposed in a ferrule holding a plurality of optical fibers, which respectively have at least one core in a region shifted from a region on a center axis and are arranged in a first direction intersecting with the center axis line, is disclosed. The optical-fiber holding component comprises a holding part defining a position of each of coating removed portions in a plane perpendicular to the center axis and holding the coating removed portions, each of the coating removed portions being obtained by removing a resin coating by a predetermined length from a tip end of each of the optical fibers; and a fixing part arranged side by side with the holding part in a second direction along the center axis, resin coated portions of the optical fibers being fixed to the fixing part.

Abstract: The present disclosure relates to a molded ferrule holder that can be coupled to a ferrule eliminating the need for automated injection molding machines and allowing for the use of low cost, low temperature polymers for the ferrule holder materials.

Abstract: The disclosure includes an apparatus including an elongated assembly, at least a portion of which is sized, shaped, or otherwise configured to be inserted into a human body to measure a physiological parameter at an internal location within the body. The elongated assembly includes an elongated member having a first length and an outer surface, a coil disposed about at least a portion of the elongated member, the coil having a second length, and at least one stand-off member positioned between the outer surface of the elongated member and the coil, where the at least one member is configured to prevent the coil from contacting an optical fiber positioned between the elongated member and the coil.

Abstract: Certain splice arrangements include first and second laminate structures bonded around a splice location at which two or more optical fibers are spliced (e.g., fusion spliced) together. The first and second laminate structures each include a flexible polymeric sheet and a heat activated adhesive layer carried by the flexible polymeric sheet. Other splice arrangements include a protective barrier disposed about an optical splice. The protective barrier includes first and second protective layers bonded around the optical splice. Each protective layer include a film carrying an adhesive. The protective barrier may be sufficiently flexible to not restrict flexing the optical fibers at the splice location. Example splice arrangements have thicknesses of less than or equal to 1000 microns, or 900 microns, or 800 microns, or 700 microns, or 600 microns or 500 microns.

Abstract: A splice module includes a main splicing channel and a rework channel. The main splicing channel has an encapsulated section at which one or more initial splices can be stored. The main splicing channel also includes a non-encapsulated section through which trunk cable fibers of the initial splices extend. If re-splicing is needed, the trunk cable fibers can be accessed at the non-encapsulated section, cut, and re-spliced to a new connectorized pigtail or other optical fibers.

Abstract: A resonance device includes a first substrate formed of a semiconductor material or a glass material and having a recess which has an opening in a first main surface, a second substrate bonded to the first main surface and configured to close the opening of the recess, and a resonator element housed in the recess. An inner surface of the recess includes a side surface, a bottom surface, and a connection surface connecting the side surface and the bottom surface, the connection surface is a curved surface, and L1<L2, wherein L1 is a length of the connection surface in a first direction, and L2 is a length in a second direction orthogonal to the first direction.

Abstract: The present disclosure relates to fiber optic components and structures for use in building fiber optic networks using an indexing architecture. In certain examples, fan-out structures are used.

Abstract: A fiber array unit (FAU) includes a substrate, a plurality of optical fibers, and a lid. The substrate includes: an optical window extending through a layer of non-transparent material, a plurality of grooves, and an alignment protrusion configured to mate with an alignment receiver. The plurality of optical fibers are disposed in the plurality of grooves. The alignment protrusion is configured to align the plurality of optical fibers with an external device when mated with the alignment receiver. The plurality of optical fibers is disposed between the lid and the substrate.

Abstract: A fiber optic adapter assembly is provided with a floating adapter module. The adapter assembly includes a housing, an adapter module, and a single biasing member disposed in the housing and concentrically aligned with the adapter module. The single biasing member can bias the adapter module in a direction toward an end of the housing and be compressible in the opposite direction toward the other end of the housing.

Abstract: Structures for an optical fiber groove and methods of forming a structure for an optical fiber groove. A photonics chip includes a substrate and an interconnect structure over the substrate. The photonics chip has a first exterior corner, a second exterior corner, and a side edge extending from the first exterior corner to the second exterior corner. The substrate includes a groove positioned along the side edge between the first exterior corner and the second exterior corner. The groove is arranged to intersect the side edge at a groove corner, and the interconnect structure includes metal structures adjacent to the first groove corner. The metal structures extend diagonally in the interconnect structure relative to the side edge of the photonics chip.

Abstract: There is set forth herein a method including building a first photonics structure using a first wafer having a first substrate, wherein the building the first photonics structure includes integrally fabricating within a first photonics dielectric stack one or more photonics device, the one or more photonics device formed on the first substrate; building a second photonics structure using a second wafer having a second substrate, wherein the building the second photonics structure includes integrally fabricating within a second photonics dielectric stack a laser stack structure active region and one or more photonics device, the second photonics dielectric stack formed on the second substrate; and bonding the first photonics structure and the second photonics structure to define an optoelectrical system having the first photonics structure bonded the second photonics structure.

Abstract: A cover for a fiber optic cable connection includes a cap portion having a first housing portion having a first housing wall, a second housing portion having a second housing wall, and a coupler portion that couples the first housing portion and the second housing portion in a closed position. The first housing wall and the second housing wall define a housing opening. A sealing assembly is received within the housing opening and has an inner surface and an outer surface. The inner surface defines a sealing opening that receives a fiber optic cable. The outer surface contacts at least one of the first housing wall or the second housing wall when the sealing assembly is received within the housing opening. The sealing assembly creates an additional seal when the first housing wall and the second housing wall compress the sealing assembly onto a union portion.

Abstract: A passively aligned fan-out apparatus for a multicore fiber (MCF) includes a fan-out assembly that comprises a fan-out substrate, small-clad fibers (SCFs) supported in SCF V-grooves of the fan-out substrate, and alignment rods disposed outboard alignment V-grooves of the fan-out substrate. The SCFs have a distal-end pitch P2D at a distal end of the fan-out substrate greater than the proximal-end pitch P2P of the SCFs at a proximal end of the fan-out substrate. An MCF assembly and/or single mode fiber (SMF) assembly may also be provided as part of the fan-out apparatus.

Abstract: An optical connection structure includes a PLC that is an optical waveguide chip including an optical waveguide and at least one groove formed on a substrate, and at least one optical fiber that is fitted into the at least one groove of the PLC. The PLC includes the optical waveguide, at least one grating coupler that is optically connected to the optical waveguide, and the at least one groove formed at a position in a vicinity of the at least one grating coupler in a cladding layer in which the optical waveguide is formed. An optical fiber of the at least one optical fiber is fitted into a groove of the at least one groove such that an end surface of the optical fiber is located in a vicinity of a grating coupler of the at least one grating coupler, the optical fiber being optically connected to the grating coupler.

Abstract: An optical connection component includes: a glass plate formed of a glass material capable of transmitting ultraviolet rays, the glass plate having a first surface, a second surface opposite to the first surface, and one or a plurality of first through holes penetrating from the first surface to the second surface; a resin ferrule fixed to the first surface of the glass plate and having one or a plurality of second through holes each having a central axis coaxial with the central axis of the one or a plurality of first through holes; and one or a plurality of optical fibers including a glass fiber and a resin coating covering the outer periphery of the glass fiber, wherein the glass fiber exposed from the resin coating at the tip end of each of the one or a plurality of optical fibers is received in the one or a plurality of first through holes and the one or a plurality of second through holes.

Abstract: An optical device includes a waveguide device and a fiber stub. The fiber stub at least partially contains a first optical fiber and is directly attached to the waveguide device by an adhesive. The first optical fiber is to be coupled to a second optical fiber included in an optical connector when the optical connector is inserted into a receptacle of the optical device. The fiber stub is to couple the first optical fiber to at least one of the waveguide device or an optical waveguide included in the waveguide device.

Abstract: A ferrule with fiber holes includes: a resin-molded portion molded by a resin; and a reinforcement member embedded in the resin-molded portion and that has a smaller linear expansion coefficient than the resin-molded portion. The reinforcement member includes fiber insertion portions that are parallel to the fiber holes. The fiber holes are formed by the resin that entered the fiber insertion portions.

Abstract: An optical system includes a base, a plurality of optical fibers, and a plurality of optical components. The base has a fiber retention and alignment section and an optical coupling section. The fiber retention and alignment section have a plurality of alignment members, where each alignment member is configured to receive an optical fiber therein. The optical coupling section has an optical coupling block and includes a plurality of optical coupling elements, with each optical coupling element having an ellipsoidal reflecting surface defining a first focal point and a second focal point. The first focal surface is generally aligned with the first focal point. The second focal surface is generally aligned with the second focal point. Each optical fiber is positioned within one of the alignment members and adjacent one of the first focal surfaces. Each optical component is positioned adjacent one of the second focal surfaces.

Abstract: A connector includes a ferrule assembly having a ferrule, a hub and a spring, the ferrule having a distal face accessible at a distal end of the connector housing, the ferrule being movable in a proximal direction relative to the connector housing. The distal and proximal positions are separated by an axial displacement distance. The ferrule proximal movement is against the spring's bias. The cable of the assembly includes an optical fiber contained within a jacket and also a strength layer between the fiber and the jacket that is anchored to the connector housing. The fiber extends through a fiber from the proximal end of the connector housing to the ferrule. The fiber has a distal portion potted within the ferrule. The fiber passage has a fiber take-up region configured to take-up an excess length of the fiber corresponding to the ferrule axial displacement.

Abstract: An adapter is cylindrical and includes a first groove and a locking structure. The first groove is adjacent to an inner peripheral surface at one end of the adapter. The first groove extends in an axial direction of the adapter and turns in a circumferential direction. The locking structure is disposed in a circumferential direction at an outer peripheral surface at other end of the adapter. An optical plug includes an elastic member and a stopper. The elastic member is at a rear end of a holder. The stopper includes an annular portion that is in contact with the elastic member and arm portions bent toward the front end from an outer periphery of the annular portion. Each of the arm portions includes a hook at a front end of the stopper. The hook is configured to be locked into the adapter. The optical plug is attached via the adapter.

Abstract: A wafer-level technique to couple an optical fiber to an integrated photonic circuit is presented. A connector is fabricated on top of a substrate. The connector comprises hollow structures with high aspect ratio. The connector receives an optical fiber or a ribbon of optical fibers for connection to the integrated photonic circuit. The connector is made with a certain angle to achieve optimal coupling. The base of connector is aligned to a coupler on the substrate. Light can propagate in both directions from the fiber to the chip or from the chip to the fiber.

Abstract: A connector and a connector set that can be fabricated by using a mold including a smaller number of components.

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 bend inducing fiber array unit is provided comprising first and second anti-recovery plates and a V-groove chip. Opposing lateral anti-recovery plates are arranged on opposite sides of the first and second anti-recovery plates. Lateral edges on a common side of the anti-recovery plates are secured to a common face of one of the opposing lateral anti-recovery plates to fix the first and second anti-recovery plates relative to each other. A guided portion of the array of optical fibers is positioned in the fiber accommodating grooves of the V-groove chip and the V-groove chip is secured to the second anti-recovery plate such that the fiber accommodating grooves and a fiber guiding face of the first anti-recovery plate are fixed at a relative angle ? approximating the bend in the array of optical fibers.

Abstract: Embodiments herein include an optical system that passively aligns a fiber array connector (FAC) to a waveguide in a photonic chip. A substrate of the FAC is machined or etched to include multiple grooves along a common axis or plane to hold optical waveguides, or more specifically, the fibers of the optical cables in the FAC. To align the fibers to the photonic chip, one of the fibers is disposed in an alignment trench which has a width that is substantially the same as the diameter of the fiber. When the fiber registers with the alignment trench, the fiber is aligned with a waveguide disposed at the end of the trench. Because the pitch between the fibers can be precisely controlled, aligning one of the fibers using the alignment trench results in the other fibers becoming passively aligned to respective waveguides in the photonic chip.

Abstract: An optical device may include an optical bench used align a photonic chip to a receptacle. In one embodiment, a surface of the optical bench defines an alignment plane. When a fiber stub in the receptacle is disposed on the surface, an optical path in the stub is parallel with the alignment plane. By disposing the photonic chip on the same surface, the chip and the stub can be aligned such that optical signals can be transmitted between the stub and an optical component (e.g., light source or waveguide) in the photonic chip. In one embodiment, the optical path in the stub and the optical component may have the same height relative to the optical bench. Moreover, the optical device may include a direct thermal connection between the assembly and the heat sink, and thus, have better thermal coupling relative to using thermal pads.

Abstract: An optical module includes: a board configured to be equipped with an optical element that carries out photoelectric conversion; a flexible optical waveguide configured to guide light output from the optical element or light to be input to the optical element; and a chassis including: a housing part configured to house the board, and a passage configured to lead the flexible optical waveguide to outside of the housing part and bend in such a manner that one or more steps are formed along a wave guiding direction of the flexible optical waveguide.

Abstract: An electronic apparatus includes a substrate and an optical connector connected to a waveguide on the substrate. The optical connector includes a ferrule that holds an optical fiber and has front and rear parts along a connecting direction of the optical connector with respect to the substrate. The ferrule has a hook and a presser member provided on a bottom face at the front part of the ferrule, a projection provided on the bottom face at the rear part of the ferrule, and a sloping part including a groove formed in the bottom face to hold the optical fiber. The optical fiber is held obliquely downward toward the substrate by the sloping part. The substrate has holes to receive the hook and the projection, and a groove to receive the optical fiber.

Abstract: As a cylindrical optical connector, an optical connector includes a pushing member that has a structure that is suitable for holding a coil spring in the optical connector, and that has a structure that, even if clockwise or counterclockwise twisting occurs with respect to an axial direction of the optical connector, properly restricts rotation of the pushing member and, thus, does not allow disengagement of the pushing member caused by an applied force resulting from the rotation of the pushing member to easily occur.

Abstract: The disclosure generally relates to sets of optical waveguides such as optical fiber ribbons, and fiber optic connectors useful for connecting multiple optical fibers such as in optical fiber ribbon cables. In particular, the disclosure provides an efficient, compact, and reliable optical fiber connector that incorporates an optically transmissive substrate combining the features of optical fiber alignment, along with redirecting and shaping of the optical beam.

Abstract: A fiber assembly (100) includes a printed circuit board (1), an optoelectronic element (2) defined on the printed circuit board and having a top surface (21), a transmission media (3) optical coupling with the optoelectronic element, and an optical cement (4) used for fixing the transmission media to the optoelectronic element. A tip end of the transmission media needs not with polishing processing, and the tip end of the transmission media is directly facing to the top surface of the optoelectronic element in order to realization of optical coupling, the optical cement is enclosing on the optoelectronic element and the tip end of the transmission media, the optical cement is filling a space between the transmission media and the optoelectronic element, the refractive index of the optical cement is close unlimitedly to the refractive index of the transmission media.

Abstract: An optical connector includes an optical waveguide having multiple cores for propagating light arranged in a width direction, a connector body including a distal end reference surface that contacts a distal end of the optical waveguide, a first reference surface that contacts a first surface of the optical waveguide, a lens array that face the multiple cores, and an opening, and a positioning member that is mounted to the opening, the positioning member including a pressing part that contacts a second surface of the optical waveguide and presses the optical waveguide to the first reference surface, and a first positioning part that contacts a first side of the optical waveguide in the width direction.

Abstract: Disclosed are structures and methods for facet optical coupling of optical fibers to photonic integrated circuits.

Abstract: An optical fiber connector includes a housing, two coupling lenses, a RJ45 plug, a holder, and two optical fibers. The housing defines a receiving cavity with a bottom surface and two through holes. The coupling lens is positioned on the bottom surface and covers the through holes. The RJ45 plug is received in the receiving cavity and defines a receiving recess. The holder is received in the receiving recess and defines two receiving through holes. The optical fibers are received in the receiving through holes and optically aligned with the coupling lenses.