Abstract: In a stacked waveguide assembly, the waveguides can comprise color filters, distributed filters, and/or switch materials. Examples of color filters include dyes, tints, or stains. Examples of distributed filters and/or switch materials include dichroic filters, Bragg gratings, electronically switchable glass, and electronically switchable mirrors. Switch materials can be designed or tuned to attenuate light of unwanted colors or wavelengths. The waveguides may each be associated with a particular design wavelength. This can mean that a waveguide that is associated with a design wavelength includes an incoupling optical element is configured to deflect light at the design wavelength to an associated light distributing element and that the associated wavelength selective region is configured to attenuate light not at the design wavelength.

Abstract: A module for optical fiber installation and storage at customer premises has a base, and a fiber supply spool mounted for rotation on the base. An elongated adapter plate has a front end portion for mounting a connector adapter. A rear end portion of the adapter plate has first hinge parts at one side of the plate, and the fiber supply spool has second hinge parts for engaging the first hinge parts of the plate to define a hinge axis. The adapter plate can swivel about the hinge axis between a position where the plate lies flush on the supply spool and the spool can turn as fiber unwinds, and a position where a port of a connector adapter mounted on the plate is accessible for connection to an outside device when the module is closed, and the plate engages the module base to restrain the spool from rotation.

Abstract: An optical waveguide includes a substrate, a first core provided over the substrate and having a first taper region that extends from one side toward the other side and has a sectional area that decreases toward the other side, and a plurality of second cores provided over the substrate and over or under the first core with a first cladding layer sandwiched therebetween and extending in parallel to the substrate and the first core.

Abstract: An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. At least one lens among the first to the sixth lenses has positive refractive force. The seventh lens can have negative refractive force, and both surfaces thereof are aspheric. At least a surface of the seventh lens has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the seventh lenses. The optical image capturing system can increase aperture value and improve the imaging quality for use in compact cameras.

Abstract: Apparatuses and methods for photonic communication and photonic addressing are disclosed herein. An example apparatus includes a plurality of photonic sources, a plurality of memory die, a logic die, Each of the plurality of photonic sources provides a photonic signal of a different wavelength and are provided to a first photonic path. Each memory die of the plurality of memory die includes a photonic modulation circuit coupled to the first photonic path, and further includes a photonic detector circuit coupled to a second photonic path. Each memory die of the plurality of memory die is associated with and addressed by a respective wavelength of a photonic signal. The logic die is coupled to the first and second photonic paths, and includes a plurality of photonic circuits. Each of the photonic circuits of the plurality of photonic circuits is associated with a respective wavelength of a photonic signal.

Abstract: The present disclosure provides a pitch reducing optical fiber array or a multicore fiber including at least one chiral fiber grating incorporated therein that is operable to couple the modes in different fiber cores within a spectral range determined in some instances by the helical pitch of the corresponding chiral fiber grating.

Abstract: An optical connector apparatus includes a connector which is connected to an electro-optical composite cable including an optical fiber and a metal conductor, and a connection object to be connected. The connector is provided with a ferrule which has a conductive portion on at least a part of the surface thereof. The connection object to be connected is provided with an electrically conductive connection member to be connected to the ferrule. The ferrule and the cable are connected by a crimping structure. When the ferrule is inserted in the connection member, the connector and the connection object to be connected are electrically and optically connected to each other.

Abstract: A module for installing and storing an optical fiber includes a supply spool containing fiber for routing between the module and a service module at a customer premises. An adapter inside the module connects the fiber on the spool with an outside connector associated with a device at the premises. A wall of the module has a payout opening, and an edge of the module base is set back from the outside surface of the wall at the payout opening. A ramp area formed on the base inclines downward from the spool toward the payout opening. A lower edge of the ramp area substantially coincides with the setback edge and is substantially flush with a supporting surface beneath the base. Fiber drawn from the module can be adhered to the supporting surface at the payout opening and thus ameliorate any adverse visual impact of the fiber near the module.

Abstract: A fiber optic telecommunications device includes a fiber optic cassette comprising a body defining a front and an opposite rear and an enclosed interior. A fiber optic signal entry location is defined on the body for a fiber optic signal to enter the interior via a fiber optic cable. An adapter block defines a plurality of fiber optic adapters and is removably mounted to the body with a snap-fit interlock, each adapter including a front outer end, a rear inner end, and internal structures allowing mating of optical connectors mounted to the front and rear ends, respectively. A removable spacer is mounted to the body, the spacer configured to expand the size of the enclosed interior of the cassette and a removable cover is mounted to the spacer. Connectorized optical fibers extend from the fiber optic signal entry location to the rear inner ends of at least some of the fiber optic adapters for relaying the fiber optic signal to fiber optic connectors to be coupled to the front outer ends of the adapters.

Abstract: A micro optical engine assembly including a printed circuit board, a frame mounted on the printed circuit board, a micro optical engine mounted on the printed circuit board within a central space of the frame, a jumper having a lens-carrying end placed on top of the micro optical engine and aligned therewith by alignment members to thereby limit horizontal movement of the jumper, and a latch having a snap mechanism releasably snapped onto the frame, and at least one spring plate resiliently pressing against an upper surface of the jumper when the latch is snapped onto the frame to thereby limit vertical movement of the jumper.

Abstract: Embodiments of the present disclosure provide a multiplexer, and relate to the field of fiber communications technologies. The multiplexer according to the embodiments of the present disclosure includes a first light beam adjusting element, a second light beam adjusting element, a first light filtering and combining element or splitting element, a second light filtering and combining element or splitting element, a polarization changing element, and a light polarizing and combining element. The optical multiplexer according to the embodiments of the present disclosure may not only implement combining at least four light beams into one light beam but also reduce the number of reflection times of light during a light combination process.

Abstract: A pigtail fiber module comprises: a large mode area fiber (LMA fiber) 10 having a fiber core wire 1 composed of a core where single-mode light travels and a clad, and a protective coating 2 surrounding the core wire; and a fiber holding member, and has the following structure. The fiber holding member includes a ferrule 20 having a through hole 21, and a capillary 30 having a narrow hole 31 and incorporated in a tip end side of the ferrule. The narrow hole houses the fiber core wire of the LMA fiber. The through hole houses the LMA fiber having the protective coating. An end portion of the narrow hole at the through hole side is provided with a sealing member 40 for sealing a gap between the fiber core wire and the narrow hole and shutting the narrow hole off from the through hole, and the protective coating is fixed to the through hole with a thermosetting adhesive.

Abstract: A fiber optic ferrule with rear holes and a guide pin clamp allows for changing guide pins in the field. The guide pin clamp has a forward clamp portion to engage the rear face of the fiber optic ferrule, a rearward clamp portion configured to engage the biasing spring, and a guide pin retaining plate. The guide pin retaining plate is movable from a first position to a second position to allow for the removal or insertion of guide pins.

Abstract: An optical fiber connector according to the present disclosure includes an inner housing, a first outer housing and a second outer housing. The inner housing has a first wall, a second wall, a third wall and a fourth wall, wherein the first wall faces the third wall and connects with the second and fourth walls. The first outer housing is positioned to surround the inner housing. The second outer housing is positioned to surround the inner housing and engage the first outer housing. A key arm extends from the second outer housing and is configured to position on the first wall or the third wall of the inner housing. When the inner housing is inserted into an optical fiber adapter, the key arm is inserted into the key recess of the optical fiber adapter.

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: A head-mounted display (HMD) including an electronic display. The electronic display is configured to output image light. The electronic display includes a display panel including a surface configured to emit image light, and a fiber optic taper. The fiber optic taper includes a mounting surface and a display surface. The mounting surface is formed to, and affixed to, the surface of the display panel to receive the image light from the display panel. The display surface has a shape configured to output the image light corrected for optical distortion in the image light received from the cylindrically curved display panel. The HMD includes an optics block configured to optically direct the corrected image light to an exit pupil of the HMD corresponding to a location of an eye of a user of the HMD.

Abstract: A panel-mountable header connector includes conductors and a housing. The housing holds the conductors in a cavity of the housing. The housing has a front end and a rear end. The housing has a latch set and a stop feature which define a panel mounting zone therebetween. The panel mounting zone is configured to align with an opening in a panel when the housing is mounted to the panel. The latch set is configured to engage a front side of the panel, and the stop feature is configured to engage a rear side of the panel to retain the panel in the panel mounting zone. At least one of the latch set or the stop feature is stepped such that a width of the panel mounting zone is variable to accommodate the panel having one of multiple thicknesses.

Abstract: An optical fiber 1A comprises an optical transmission member 10 including a core 12 and a clad 14, a primary resin layer 22, and a secondary resin layer 24. The effective area of the optical transmission member 10 is 130 ?m2 or larger. The transmission loss of the optical transmission member 10 at a wavelength of 1550 nm is 0.165 dB/km or smaller. The Young's modulus of the primary resin layer 22 is 0.7 MPa or lower, and the Young's modulus of the secondary resin layer 24 is 600 MPa or higher and 1500 MPa or lower. The difference between the transmission loss when the optical fiber 1A is wound at a tension of 80 g around a bobbin on which a metal mesh member having vertical wires of a 50-?m diameter and horizontal wires of a 50-?m diameter are wound and spaced at a pitch of 150 ?m, and the transmission loss of an optical fiber coil is 1.0 dB/km or smaller.

Abstract: Apparatuses and methods for photonic communication and photonic addressing are disclosed herein. An example apparatus includes a photonic source layer that provides a plurality of photonic sources, each at a different wavelength, a plurality of second layers, and a third layer. Each of the plurality of second layers may be associated with a respective wavelength, and each of the plurality of second layers may include photonic filters tuned to their respective wavelength, a photonic modulator, and a photonic detector. The third layer may include a plurality of photonic circuits, with each of the plurality of photonic circuits associated with a respective second layer of the plurality of second layers. Additionally, each of the plurality of photonic circuits may include a photonic filter tuned to a respective wavelength associated with a respective second layer, a photonic detector and a photonic modulator.

Abstract: A heat dissipation system for an optical communications module is provided that includes a heat dissipation clamp having a plurality of force-application devices for applying respective, precisely-controlled forces to respective optical communications modules of an array to maintain electrical interconnectivity between the modules of the array and respective electrical sockets. The force-application devices are independent of one another such that the respective electrical interconnectivity forces applied to the respective modules are independent of one another. This independence ensures that the proper amount of electrical interconnectivity force is applied to each module of the array, which ensures that the planarity of the system PCB is maintained without the need for a backing, or bolstering, plate. Inner walls of the heat dissipation clamp are in contact with the modules so that heat generated by the modules is transferred into the heat dissipation clamp where some or all of the heat is dissipated.