Abstract: A fiber optic cable transition assembly for transitioning a plurality of optical fibers from a multi-fiber cable to a plurality of furcation tubes. The fiber optic transition assembly has a housing with a front opening and an internal passageway that is defined by a wall and a narrow region. The housing is adapted to receive epoxy adhesive. The fiber optic transition assembly has a boot that is positioned at least partially inside the housing for receiving the multi-fiber cable to provide strain relief to the plurality of optical fibers extending therethrough. The fiber optic transition assembly has a plug supported by the boot and retained by the housing to prevent epoxy adhesive from entering the multi-fiber cable.

Abstract: A first optical waveguide layer and a second optical waveguide layer are optically connected by a resin optical waveguide composed of a resin core composed of a light-transmitting resin and a cladding composed of air surrounding the resin core. A hollow outer wall structure that houses the resin optical waveguide is provided. An enclosed space is provided inside the outer wall structure. The outer wall structure is disposed to bridge the gap between the first optical device and the second optical device.

Abstract: Provided is a reservoir computing system that is miniaturized and has a reduced learning cost. The reservoir computing system uses a reservoir that includes a first optical output section that outputs a first optical signal; a first optical waveguide that propagates the first optical signal output by the first optical output section; an optical receiving section that receives the first optical signal from the first optical waveguide; a storage section that stores received optical data corresponding to the first optical signal and output by the optical receiving section; and a feedback section that applies, to the first optical signal, feedback corresponding to the received optical data stored in the storage section.

Abstract: An optical communication module made with transparent packaging material which locates elements and provides protection against contaminants and EMI includes a printed circuit board; a photoelectric element disposed on the printed circuit board; an optical-fiber connector disposed on the printed circuit board, corresponding to the photoelectric element; the transparent packaging material covers the printed circuit board, the photoelectric component and the optical-fiber connector. An electromagnetic shielding layer covers the transparent packaging material. A method of manufacturing same is also disclosed.

Abstract: Disclosed herein is a cassette for securing fiber-optic cables and ferrules during the curing process. The cassette may include a base body may include a first cavity disposed at a cable section of the base body. Further, the first cavity may be configured for immovably securing a fiber-optic cable. Further, the base body may include a second cavity may be disposed at a middle section of the base body. Further, the second cavity may be characterized by a cavity length. Further, the cavity length corresponds to a length of the fiber-optic cable from a first cable end to a second cable end, the wherein the second cavity may be configured for accommodating the fiber-optic cable along the cavity length. Further, the base body may include a third cavity disposed at a fiber section of the base body. Further, the third cavity may be configured for immovably securing a ferrule.

Abstract: A method of coupling an optical fiber with an optical active component is disclosed. An active area of the optical active component is recognized. The active area of the optical active component is specified with an active pair of reference coordinates. Positioning the core end facet of the optical fiber according to the active pair of reference coordinates could be performed thereafter.

Abstract: Provided is an optical device which can control a beam quality of outgoing light. An optical device (10) includes an entrance fiber bundle (12), an exit fiber (13), and a reduced diameter part (11). The reduced diameter part (11) has (i) an entrance end surface (11a) and (ii) an exit end surface (11b) which is narrower in area than the entrance end surface (11a). In a case where the entrance end surface (11a) is viewed from a normal direction of the entrance end surface (11a), a center (C2) of the exit end surface (11b) deviates from a center (C1) of the entrance end surface (11a).

Abstract: A submount assembly comprises a first substrate having a first surface and an opposing second surface, wherein a plurality of first grooves are formed into the first substrate from the first surface. Each first groove is dimensioned to receive a portion of a respective optical fiber of a plurality of optical fibers, and to arrange the optical fiber with a predetermined first height relative to the first surface. The submount assembly further comprises a plurality of first conductive traces on a side of the first substrate corresponding to the first surface, and a semiconductor laser contacted with the first conductive traces. The semiconductor laser has a predetermined second height relative to the first surface. The submount assembly further comprises a plurality of second conductive traces at the second surface and a plurality of first vias extending through the first substrate from the first conductive traces to the second conductive traces.

Abstract: A positioning mold of optical fiber connector includes a lower mold board and a thin board. The lower mold board includes two positioning pins and at least one through aperture. The thin board is arranged above the lower mold board, and is provided with two first through holes and with at least one optical fiber positioning aperture. The two first through holes correspond to two positioning pins, and the at least one optical fiber positioning aperture to the at least one through aperture. Given such structure, even if optical fiber lines fracture inside of the optical fiber positioning apertures during the work of positioning, the fractured optical fiber lines can be taken out and replaced easily, so as to improve the productivity in manufacturing optical fiber connectors.

Abstract: Provided is a low-loss mode scrambler in which a steady mode distribution can be obtained in a short distance and switch to an entire mode distribution state is easy even when incident light is smaller than a numerical aperture of a fiber to be measured in a multimode fiber having a core diameter exceeding several tens of ?m and a numerical aperture of 0.2 or more. One fiber 2 is wound around a plurality of bobbins 3a and 3b having a radius larger than a minimum bending radius of the fiber to form a bundle, and the fiber 2 is twisted by rotating the bobbins 3a and 3b to form a twisted portion 5, whereby it is possible to perform output of a steady mode from light incident on the fiber 2.

Abstract: A joining structure includes a first member having a cylindrical hollow portion, and a second member that is cylindrical in shape, has an outer circumferential diameter equal to or larger than a diameter of the hollow portion, and is to be pressed into the hollow portion. A concave portion, which is cut out inward from an outer circumference of the first member, is formed on part of a portion of the first member into which the second member is pressed.

Abstract: An optical bench on substrate includes a substrate and a trench formed inside the substrate and having a sloping side. A reflector layer is formed over the sloping side. An optical component is mounted over the substrate. The reflector layer is configured to reflect an electromagnetic wave to or from the optical component.

Abstract: Approaches to Compact External Grating PBS/PBC Coupling are described according to embodiments of the present invention. In one embodiment, a YVO4 crystal is used to split a beam or combine multiple beams into a single beam. A lens is used to convert a mode of the light to match a mode of a grating port. A glass wedge is designed to bend the light from horizontal to a nearly vertical orientation to match an exit angle of a grating port. When a source or a receiver utilizes an optical fiber, a fiber holder may be used to bond the fiber to the source or receiver. The PBS/PBC described has much less insertion loss compared to existing 2D grating coupler techniques, and has a wider spectral bandwidth due to flexibility in mode matching compared to existing 2D grating couplers.

Abstract: An optical fiber assembly comprises an optical fiber having a forward end, a ferrule supporting the optical fiber, a beam expanding element aligned with the forward end of the optical fiber, and a thermal expansion compensation element adjacent the optical fiber to compensate for thermal expansion differences between the optical fiber and the ferrule.

Abstract: The present invention relates to a method for connecting a solid core optical fiber (2) with another optical fiber (20), wherein the solid core optical fiber (2) comprises a joining device (10), which is created on one axial end of the solid core optical fiber (2) using a 3D printer and wherein the other optical fiber (20) is incorporated in the joining device (10) via an axial end of the other optical fiber (20), which is thus connected with the solid core optical fiber (2). In addition, the invention relates to a solid core optical fiber (2) with a joining device (10) created by a 3D-printer, and the relevant use of a 3D printer.

Abstract: A protective assembly method using a transparent layer within the fiber interconnect system aids in optical coupling by preventing an air gap from forming between the fiber cores within a connector. A thin transparent film (or with adhesive) is placed over the fiber end-faces at the connector interface, the film having characteristics which allows it to conform to the fiber end and minimize coupling loss between fibers. The film is sized to fit connectors faces and can be temporary, being replaced with each installation. A coating can also applied to the connector surface, providing a similar effect, as well as structurally enhancing the connector surfaces.

Abstract: Each channel of a high speed multi-channel transmitter or receiver IC chip layout is partitioned into at least first and second channel portions that are electrically interconnected with one another. Each first channel portion has an end that is located on an optical interface side of the multi-channel transmitter or receiver IC chip. Each second channel portion has an end that is located on an electrical interface side of the multi-channel transmitter or receiver IC chip. The pitch between the first channel portions is very fine and matches the pitch between optoelectronic elements of an optoelectronic array chip that interfaces with the optical interface side of the multi-channel transmitter or receiver IC chip. The pitch between the second channel portions is significantly greater than the pitch between the first channel portions to prevent cross talk.

Abstract: There is described an optical fiber coupler in which at least one fiber is a multiple-clad fiber, containing a single-mode core supporting a single guiding mode and an inner multi-mode cladding guiding multiple modes. The multiple-clad fiber is fused with a second fiber of a different etendue to create an optical fiber coupler having an enhanced multi-mode signal transmission.

Abstract: A method of manufacturing a physical quantity measurement sensor, which includes a measurement portion, a cable including a conductor electrically connected to the measurement portion and a sheath, and a resin molded body covering at least an end portion of the cable. The method includes arranging the measurement portion connected to the cable in a mold, and molding the resin molded body by injecting a molten resin toward the sheath through an injection hole formed in the mold. The injection hole is formed at a position distant from the cable and includes a central axis inclined with respect to the axial direction of the cable at an opening facing an inside of the mold. The molding is conducted such that the sheath arranged in the mold is at least partially melted by heat of the molten resin injected through the injection hole and is adhered to the resin molded body.

Abstract: Methods, apparatuses, and systems for design, fabrication, and use of an optical bench, as well as alignment and attachment of optical fibers are described herein. One apparatus includes an apparatus body, a first channel within the apparatus body for positioning of a first optical fiber directed along a first axis and a second channel within the apparatus body for positioning of a second optical fiber directed along a second axis, wherein the first axis is orthogonal to the second axis. The apparatus also includes a third optical fiber directed along the second axis and an optical element positioned along the first channel and second channel to focus a first light beam from the first optical fiber along the first axis and focus a second light beam from the second optical fiber along the second axis.

Abstract: A molded waveguide side-facet coupler to facilitate an optical connection between optical side-facets and a fiber optic connector is disclosed. Instead of molding the side-facet coupler with the external mounting surface disposed on an external surface of the mold, the mold for the side-facet coupler is provided such that the mounting surface of the side-facet coupler is provided as a molded internal recess surface. The moldable material for the side-facet coupler is disposed around a recess core that is part of the mold, thereby forming a unitary component having at least one internal recess surface for providing an external mounting surface for the side-facet coupler. As the molded material cures around the core structure, the external surfaces of the unitary component pull away from internal surfaces of the mold, and shrink around the core structure. Thus, the internal recess surface of the unitary component is formed within narrower, repeatable tolerances.

Abstract: An expanded-beam ferrule for an optical interface device has a ferrule body with a fiber support feature that supports an optical fiber. The ferrule body defines a lens having a planar back surface and a convex and aspheric front surface. The lens has a select amount of on-axis spherical aberration that gives rise to an improved coupling efficiency and in particular provided tolerance to misalignments between confronting expanded-beam ferrules used in an expanded-beam optical interface device. The ferrule body can also include multiple lenses and can support multiple optical fibers in operable alignment thereto.

Abstract: An electro-optic device may include a photonic chip having an optical grating at a surface, and an IC coupled to the photonic chip. The electro-optic device may include an optical element defining an optical path above the optical grating, and a dichroic mirror above the optical grating and aligned with the optical path.

Abstract: A fiber optic connector sub-assembly includes a ferrule having a front end, a rear end, and a ferrule bore extending between the front and rear ends along a longitudinal axis. The ferrule bore has a first section extending inwardly from the rear end of the ferrule, a second section extending inwardly from the front end of the ferrule and having a width that is less than the first section, and a transition section located between the first and second sections. The fiber optic connector sub-assembly also includes a bonding agent disposed in at least a portion of both the transition section and the second section of the ferrule bore. At least some of the bonding agent in the second section of the ferrule bore has been melted and solidified.

Abstract: A micromechanical component having a sensor chip is described, on and/or in which at least one sensor element is disposed, and a cladding, formed of an injection-molding material, encloses the sensor chip in such a way that at least one partial area of a surface of the sensor chip is covered in airtight fashion by the injection-molding material. At least one channel is formed in the injection-molding material, which takes a course, straight or not straight, from an outer surrounding area of the cladding toward the at least one sensor element of such a length that a change in shape and/or a change in chemical consistency of at least one part of the at least one sensor element is able to be brought about as a function of at least one physical property and/or at least one chemical partial composition of a medium present in the at least one channel.

Abstract: An actuator for an injection mold is provided and may include a housing, a projection rotatably supported by the housing and movable between an extended state and a retracted state, and a cam supported by the housing. The cam may selectively move the projection between the extended state and the retracted state relative to the housing.

Abstract: Provided are an optical connector capable of improving optical alignment efficiency and an optical device having the same. The connector may include a body having a top surface and a bottom surface facing each other, through holes penetrating the body to connect the top and bottom surfaces, and alignment keys provided on at least side surface of the body to be parallel to the through holes.

Abstract: An optical device and a method of manufacturing an optical device. The optical device includes: a conversion means for converting propagation light propagating through an optical waveguide into parallel light and for outputting the parallel light; and a first lens means for focusing the parallel light outputted from the conversion means on a core of an optical fiber. The method includes: converting propagation light propagating through an optical waveguide into parallel light; outputting the parallel light; and focusing, using a first lens, the parallel light on a core of an optical fiber.

Abstract: A system may include a fiber distribution hub including a plurality of fiber-optic cables, wherein a particular one of the plurality of fiber-optic cables includes a machine-readable identifier; and a robotic device configured to access particular ones of the plurality of fiber-optic cables. The robotic device may include a print head configured to splice together the particular ones of the plurality of fiber-optic cables by three-dimensional printing of a silane material. A hand-held unit may also include a print head configured to splice together fiber-optic cables by three-dimensional printing of a silane material.

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: An optical fiber connector includes a housing unit and a coupling unit. The housing unit includes an outer shell. The coupling unit includes a hollow seat assembled to the outer shell, a coupling seat assembled to the hollow seat and disposed in the outer shell, a core tube having a front portion disposed in the hollow seat and a rear portion proximate to the coupling seat, and a biasing member for providing a biasing force to bias the core tube away from the coupling seat.

Abstract: A fiber optic cable and connector assembly including a fiber optic connector mounted at the end of a fiber optic cable. The fiber optic connector includes a ferrule assembly including a stub fiber supported within a ferrule. The stub fiber is fusion spliced to an optical fiber of the fiber optic cable at a location within the fiber optic connector.

Abstract: An optical waveguide component includes: an optical fiber mounting substrate provided with optical fiber alignment grooves having either, for alignment of optical fibers, V-grooves or inverted trapezoidal grooves in which inverted top sections of the V-grooves are truncated; an optical waveguide substrate in which optical waveguides are formed; a resin layer that is aligned and fixed in a state in which the optical fiber mounting substrate and the optical waveguide substrate are flush or have a predetermined amount of offset; and a transparent resin that is filled in a gap in which the optical fiber mounting substrate and the optical waveguide substrate face each other.

Abstract: Techniques relating to optical shuffling are described herein. In an example, a system for shuffling a plurality of optical beams is described. The system includes a plurality of sources to output respective beams of light. The system further includes a plurality of receivers to receive respective beams of light. The system further includes a shuffling assembly including a plurality of sub-wavelength grating (SWG) sections. Each of the plurality of SWG sections is for defining optical paths of the plurality of beams. The plurality of SWG sections includes at least one reflecting SWG section to reflect and direct light from a respective one of the plurality of sources toward a respective one of the plurality of receivers.

Abstract: A method of manufacturing an optical cable including plural waveguides each including plural optical channels and each of the waveguides and the optical channels having a first end and a second end. A central portion of each of the waveguides is displaced along a central longitudinal axis of the waveguides which traverses a central bifurcation line of the first and second connectors. A first optical channel connection pattern is formed on the first connector by the first ends of the optical channels of the waveguides connected thereto; and a second optical channel connection pattern formed on the second connector by the second ends of the optical channels of the waveguides connect to the second connector. The first optical channel connection pattern is a different pattern than the second optical channel connection pattern in relation to a connection hole pattern which is the same for both the first and second connectors.

Abstract: A method of forming a fiber optic device includes securing one or more optical fibers to a support. The support is coupled to a base that includes one or more optoelectronic devices. After one or more of the fibers are secured to the support, and the support is secured to the base, one or more of the fibers are cleaved. This method, and fiber optic devices made using this method are more easily aligned and may be produced at lower costs than existing manufacturing processes.

Abstract: Optical systems for wavelength division multiplexing and wavelength division demultiplexing with a multi-core fiber, and methods of their fabrication, are disclosed. In accordance with one method for fabricating an optical system for wavelength division demultiplexing, a resin is molded to define an element with a plurality of angled surfaces. Further, a plurality of filters are formed around the element, where each of the filters is configured to filter at least one respective wavelength and transmit at least one other respective wavelength. In addition, reflective surfaces are formed on the plurality of angled surfaces. Moreover, an additional resin is formed over the element and over the plurality of filters to complete a guiding structure. Further, arrays of photodiodes are affixed to the guiding structure below the plurality of filters. Alternatively, for demultiplexing embodiments, sets of laser chips are affixed to the guiding structure.

Abstract: A fiber optic assembly includes a connector and a cover received over an end face of the connector. The connector includes a ferrule through which an optical fiber extends to the end face of the connector. An end of the optical fiber is polished proximate to the end face. The cover the cover includes a rigid end cap and a form-fitting material within the end cap overlaying the polished end of the optical fiber. The cover is configured to limit access of particulates to the end face of the connector and draw loose particulates of dust and debris from the end face of the connector upon removal from the connector.

Abstract: Optical fiber connector includes a main body and at least one protrusion. The main body includes a first surface, a second surface, and at least one receiving hole defined therein. Each protrusion is positioned on the first surface and surrounds an opening of the corresponding receiving hole.

Abstract: Disclosed is an optical conversion element capable of highly efficient optical coupling between a silicon waveguide and a general single-mode optical fiber only by butt-coupling without requiring anti-reflective coating. One embodiment is an optical conversion element that includes a waveguide structure and converts a mode field of guided light and is characterized in that at least a dual core is included, an innermost core of the dual core is a silicon inverse tapered thin wire core, a first outer core is a forward tapered ridge core having a ridge structure formed of an oxide film with only width of the ridge core changing. The first outer core is positioned on a narrow width side of the innermost core.

Abstract: Devices and components that can interact with or modify propagation of electromagnetic waves are provided. The design, fabrication and structures of the devices exploit the properties of reactive composite materials (RCM) and reaction products thereof.

Abstract: A system and method for testing capacitance of a load circuit connected to an output pin of a driving circuit In one embodiment, the method may comprise driving a voltage at the output pin to a first voltage; a predetermined current to the output pin; comparing the voltage at the output pin to a reference voltage; and when the voltage at the output pin matches the reference voltage, generating an estimate of capacitance present at the output pin based on a number of clock cycles occurring between an onset of a timed voltage change period and a time at which the voltage at the output pin matches the reference voltage.

Abstract: A method and apparatus for applying a mid-IR graded microstructure to the end of an As2S3 optical fiber are presented herein. The method and apparatus transfer a microstructure from a negative imprint on a nickel shim to an As2S3 fiber tip with minimal shape distortion and minimal damage-threshold impact resulting in large gains in anti-reflective properties.

Abstract: The present invention discloses an optical fibre (20) for coupling to an optical source (18) which includes a core (22) and a tip portion (36). The core (22) is for receiving light directed from the optical source along an optical axis; wherein the core is expanded near one end of the optical fibre, and the expanded core (24) having a diameter larger than other portions of the core that are not expanded. The tip portion (36) is on the end of the optical fibre, wherein the tip portion further includes an endmost face (26), the endmost face being non-perpendicular to the optical axis. A coupling system including such an optical fibre and a method of fabricating a coupling device for the optical fibre are also disclosed. The optical fibre as provided by the present invention not only enables high coupling efficiency with different laser mode sizes, but also reduces the back reflected laser from the optical fibre which may otherwise damage the laser semiconductor chip.

Abstract: An optical fiber includes an interlocking microstructure formed on an outer periphery of the fiber that configures the fiber to be interlocked with another optical fiber including a complementary interlocking microstructure coating.

Abstract: Embodiments of a barrel for use with fiber optic connections and method of manufacturing are disclose herein. In one embodiment, a barrel comprises a first portion. The first portion having a wedge protruding from a distal end of the first portion at an angle and a component cavity for receiving an opto-electric component therein. The barrel further comprises a second portion having a fiber cavity for receiving one or more fiber cables therein, wherein the second portion is moldably coupled onto the distal end of the first portion around the wedge. The second portion may further comprise a panel interface for mounting the barrel within a panel.

Abstract: A method of providing a conduit (5, 7, 49, 51 93, 129, 131, 151, 231, 233, 259) adapted for conducting a medium, with a functional element. The functional element is adapted for at least one of: coupling, connecting, sealing, fixing, adjusting, aligning, receiving, protecting, and positioning the conduit. A part, comprising a plastic material, is plastified and molded within a forming tool for shaping the form of the functional element and for attaching the functional element to the conduit.

Abstract: A method and system for affixing multi-core fiber (MCF) within a ferrule includes a UV light source and a light guide. MCFs are placed into epoxy filled holders, e.g., channels or v-grooves, of a ferrule. A first MCF in a first holder is clocked to orient its cores to a desired position. The light source is activated, and the light from the light guide is launched into a cladding layer of the first MCF. The light in the cladding layer will stay in the cladding layer until it reaches the portion of the first MCF in contact with the epoxy, where the light will leak out due to the similarity in the index of refraction. The leaking light will at least partially cure the epoxy to affix the first MCF within the first holder. The process may then be repeated for the remaining MCFs, so that each MCF may be clocked and affixed selectively rather than collectively.

Abstract: An optical fiber is combined with a photonic crystal structure (PCS) that is optically coupled to the optical fiber. The fiber has an exposed fiber surface, and the PCS is affixed to the optical fiber and disposed on or in proximity to the exposed fiber surface. The PCS includes an elongate probe member configured for biological probing. The elongate probe member includes an optical resonant cavity. In an experiment, this was accomplished using an optical fiber tip with a semiconductor template attached to its side face. The semiconductor structure had a thin, needle-like tip (including a nanobeam cavity) which can be suitably inserted inside (or broken off inside) a biological cell without causing cytotoxicity.

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.