Abstract: A method of fabricating a waveguide mode expander includes providing a substrate including a waveguide, bonding a chiplet including multiple optical material layers in a mounting region adjacent an output end of the waveguide, and selectively removing portions of the chiplet to form tapered stages that successively increase in number and lateral size from a proximal end to a distal end of the chiplet. The first optical material layer supports an input mode substantially the same size as a mode exiting the waveguide. One or more of the overlying layers, when combined with the first layer, support a larger, output optical mode size. Each tapered stage of the mode expander is formed of a portion of a respective layer of the chiplet. The first layer and the tapered stages form a waveguide mode expander that expands an optical mode of light traversing the chiplet.

Abstract: An optical fiber coating stripper includes a pair of electrodes, each of which having a discharge head portion and an electrode portion, and a gliding plasma (GP) head housing the electrodes therein. The GP head includes internal airflow channels. The pair of electrodes are disposed at a front end of the GP head and form an air gap therebetween. Each of the discharge head portion includes a curved portion with a rib-shaped protrusion extending in a longitudinal direction of the discharge head portion. In operation, the electrodes are connected to non-alternating electrically positive and negative polarities. When a gas flows through the internal airflow channels in a direction a back end of the GP head toward the front end, a tongue-shaped GP flow is formed in the air gap between the rib-shaped protrusions of the discharge head portions.

Abstract: Embodiments herein may include apparatuses, systems, and processes related to a photonic die package with an edge lens that includes a photonic integrated circuit (IC) die, a lens coupled to the photonic IC die and disposed at an edge of the package to provide an optical path at the edge of the package for photon signals generated or received by the photonic IC die, and an electronic IC die coupled to the photonic IC die, where the electronic IC die is to process electrical signals received from the photonic IC die, and where the electronic IC die and the photonic IC die are in a stack formation to facilitate thermal energy conduction from the electronic IC die to the photonic IC die. Other embodiments may be described and/or claimed.

Abstract: Optical designs and techniques for providing compact optical delay lines by using a dual fiber collimator structured to include (1) an input fiber line that receives and guides an input light beam, (2) an output fiber line that guides and exports an output light beam that has an optical delay relative to the input light beam, and (3) a collimating lens placed on one side of end facets of the input and output fiber lines to receive the input light beam from the input fiber line and to output the output beam light to the output fiber line.

Abstract: Wavelength division multiplexing (WDM) has enabled telecommunication service providers to fully exploit the transmission capacity of optical fibers. State of the art systems in long-haul networks now have aggregated capacities of terabits per second. Moreover, by providing multiple independent multi-gigabit channels, WDM technologies offer service providers with a straight forward way to build networks and expand networks to support multiple clients with different requirements. In order to reduce costs, enhance network flexibility, reduce spares, and provide re-configurability many service providers have migrated away from fixed wavelength transmitters, receivers, and transceivers, to wavelength tunable transmitters, receivers, and transceivers as well as wavelength dependent add-drop multiplexer, space switches etc.

Abstract: A method of manufacturing an optical device is disclosed. The method includes forming a waveguide in a glass plate. The method further includes scanning the glass plate with a laser beam directed at an acute angle with respect to a first surface to form a mirror trench in the glass plate. Scanning the glass plate with the first laser beam includes pulses of the laser beam that have a duration between 2 and 500 femtoseconds. The method also includes filling the mirror trench with a reflective material and depositing a cladding layer over the waveguide and mirror trench.

Abstract: Disclosed is a terminal having a fingerprint identification function, including: a body having a camera (1) and a processing unit, the camera (1) being electrically connected to the processing unit; an optical lens assembly, used to change a focal length of the camera (1), located above the camera (1), and mounted on the body; a light-guiding fingerprint capture platform, located above the optical lens assembly, and used cooperatively with the optical lens assembly; and a light source (2), located between the camera (1) and the fingerprint capture platform and aside the camera (1), a light emitting end of the light source (2) facing the fingerprint capture platform.

Abstract: One or more fiber optic rotary joints (FORJ), free space beam combiners, OCT, SEE and/or fluorescence devices and systems for use therewith, methods of manufacturing same and storage mediums are provided. One or more embodiments of FORJs may be used with numerous applications in the optical field, including, but not limited to, OCT and fluorescence applications. Examples of such applications include imaging, evaluating and diagnosing biological objects, such as, but not limited to, for Gastro-intestinal, cardio and/or ophthalmic applications, and being obtained via one or more optical instruments.

Abstract: An example apparatus includes an optical fiber, an actuator, and a joint mechanically coupling the actuator to the optical fiber. The joint includes a neck extending along an axis. The optical fiber is threaded through an aperture extending along the axis through the neck. The optical fiber is attached to the joint at a surface of the neck facing the axis. The joint also includes a collar extending along the axis. The actuator is mechanically attached to the joint at an inner surface of the collar facing the axis. The joint also includes a flexural element extending radially from the neck to the collar. During operation, the joint couples a force from the actuator to the optical fiber to vary an orientation of a portion of the optical fiber extending from the neck with respect to the axis.

Abstract: A holder includes a base including a reference surface and a slider to which an optical-fiber retainer that retains an optical-fiber can be attached. The slider is movable in a front-rear direction with respect to the base, and at least a portion of the optical-fiber retainer is accommodated between the reference surface and the slider when the optical-fiber retainer is attached to the slider and the optical-fiber retainer is positioned with respect to the reference surface by moving the slider toward a reference surface side.

Abstract: An optical connector includes: an optical fiber; a ferrule provided at an end of the optical fiber, through which a core wire of the optical fiber is inserted; a housing 9 configured to accommodate the ferrule; a fiber end face provided in the core wire of the optical fiber, located inside the ferrule from an end face of the ferrule in a state where the core wire is inserted through the ferrule; and a fixing means provided between an outer periphery of the core wire and an inner periphery of the ferrule, the fixing means configured to fix the core wire of the optical fiber to the ferrule and to fix a position of the fiber end face.

Abstract: Aspects of the present disclosure relate to detecting an optical signal and/or optical power in a ferrule-less optical fiber. In certain embodiments, one or more optical detectors are incorporated into an adapter that is configured to interface with a connectorized or non-connectorized ferrule-less optical fiber. The optical detector detects the presence or absence, and/or the optical power level, of the optical signal being transmitted through ferrule-less optical fiber and produces an electrical output representative of the detected optical signal.

Abstract: The optical connector according to one embodiment includes a plurality of optical connector plugs collectively connected to a plurality of adapters in a connection direction, wherein each of the optical connector plugs includes a tubular ferrule which holds an optical fiber, and a diameter of the ferrule is smaller than that of a ferrule defined by the international standard of the optical connector.

Abstract: A connection module includes a module body and a module circuit board arrangement. The module body defines a first port and an open first end providing access to the first port. The module circuit board arrangement extends across the open first end within a peripheral boundary defined by the module body. The module circuit board arrangement includes at least a first contact set that extends into the first port of the module body; an electronic controller that is electrically connected to the first contact set; and a circuit board connector facing outwardly from the module board arrangement. Example connection modules include optical adapters and electrical jacks.

Abstract: The loopback apparatus disclosed herein is used with an optical fiber system having an optical fiber cable. The loopback apparatus includes an optical fiber having input and output ends and an output optical fiber having input and output ends. The loopback apparatus also includes an optical system that defines an optical path and that is configured to optically couple the output end of the input optical fiber with the input end of the output optical fiber over the optical path. The loopback apparatus also includes a thin-film filter disposed in the optical path and configured to provide a select amount of attenuation for light traveling over the optical path. The loopback apparatus can be plugged into and unplugged from the optical fiber cable. Loopback methods for measuring the performance of the optical fiber system using the loopback apparatus are also disclosed.

Abstract: A factory processed and assembled optical fiber arrangement is configured to pass through tight, tortuous spaces when routed to a demarcation point. A connector housing attaches to the optical fiber arrangement at the demarcation point (or after leaving the tight, tortuous spaces) to form a connectorized end of the optical fiber. A fiber tip is protected before leaving the factory until connection is desired.

Abstract: An integral fan-out connector assembly for fiber optic cables includes a connector housing that provides an integrated fan-out housing and connection adapter. The fan-out connector housing may be configured with a variety of cable adapters, and may be installed as a ‘plug and play’ type solution where it will be ready to accept a feed cable for use when needed.

Abstract: The present disclosure provides an optical fiber connector, comprising an integrated ferrule assembly and an integrated outer housing assembly, the ferrule assembly being adapted to be fitted into the housing assembly. The ferrule assembly at least comprises an inner housing, a spring, a multi-hole ferrule, a multi-fiber optical cable, a sleeve and a thermal shrinkable tube. The housing assembly at least comprises an outer housing, an outer tail tube and an outer protection cap.

Abstract: A housing including a plurality of openings for receiving fiber optic connectors and protecting the polished end face of the connectors from damage while the connectors are stored within a telecommunications connection cabinet. A module with a plurality of optical fiber cables connected to a first optical fiber cable and terminated by a fiber optic connector. Each of the connectors are inserted within openings in a connector holder for storage and protection until the cables need to be connected to a customer equipment cable.

Abstract: A laser module includes: a photonic crystal surface-emitting laser element; a collimating lens array for producing a parallel optical beam; a condenser lens for condensing the optical beam; and an optical fiber which receives the optical beam on one end and transmits the optical beam to the outside. In the collimating lens array, an aperture portion corresponding to a collimating lens allows passage of the optical beam with an energy of not less than 94.0% and not more than 99.5% with respect to 100% of the energy of the optical beam incident on the collimating lens array.

Abstract: A transmitter optical sub-assembly includes a body and a receptacle assembled to a front side of the body, the receptacle including a nose body, a split sleeve enclosed by the nose body, a first body disposed behind the split sleeve, and a fiber stub either glued or shrink fit or pressed fit on to the first body, a rear end of the split sleeve being slip fitted on to the fiber stub; wherein the nose body is made from deep drawing or cold forging process and is attached on to a front surface of the body.

Abstract: An optical module includes: a mount; an optical element provided at the mount and having a light source and/or a light-receiving element; an optical element driving driver (optical element-related circuit device) including a driver, which is provided at the mount and drives each optical element, or at least one among processing devices for processing signals generated by the light; a stem including a spacer provided at a predetermined height to secure a space for an optical interface above the optical element around the optical element at the mount, and forms an electrical interface with a circuit board (substrate); and a light guide plate forming the optical interface with the stem on one side, receiving the light from a light source at one surface and emitting the light to the other surface, or receiving the light at the other surface and emitting the light to one surface.

Abstract: A waveguide includes a first layer and a second layer. The first layer comprises a material of a first refractive index. The second layer is surrounded by the first layer and comprises a material of a second refractive index greater than the first refractive index. The second layer comprises a main body, a first fork and a second fork. The main body has a first substantially constant thickness. The first fork is extended from the main body and has a first tapering end exposed by the first layer. The first fork has the first substantially constant thickness. The second fork is extended from the main body and has a second tapering end exposed by the first layer. The second fork has the first substantially constant thickness.

Abstract: An integrated optical assembly includes an optics mount. The optics mount has disposed thereon a light source for providing a beam of light and a lens configured to focus the beam of light. The integrated optical assembly includes a photonic integrated circuit (PIC) mechanically coupled to the optics mount. The PIC has disposed thereon a grating coupler for receiving the beam of light and coupling the beam of light into a waveguide. The integrated optical assembly includes a microelectromechanical systems (MEMS) mirror configured to receive the beam of light from the lens and redirect it towards the grating coupler. A position of a reflective portion of the MEMS mirror is adjustable to affect an angle of incidence of the beam of light on the grating coupler.

Abstract: Techniques for flexible coupling between an optical coupling receptacle/port of an optical transceiver housing and optical components within the same are disposed. In an embodiment, an optical transceiver housing includes an intermediate fiber with a first end optically coupled to an optical coupling port and a second end optically coupled to a multiplexer/de-multiplexer device, e.g., an arrayed waveguide grating (AWG) device, PLC splitter, and so on. The intermediate fiber may be routed in the transceiver housing in a manner that and the radius of the bends may be optimized to reduce fiber bending losses. The techniques herein are equally applicable to both ROSA and TOSA modules and may be utilized to achieve flexible coupling for multi-channel transceiver devices.

Abstract: An optical module includes an optoelectronic transceiver. The optical modules includes a heat sink. The heat sink includes a heat radiating element aligned along a length of the heat sink. The heat sink radiates heat received from the optoelectronic transceiver. The optical modules includes a housing. The optoelectronic transceiver is encapsulated by the heat sink and the housing.

Abstract: An optical module includes a circuit board having, an electronic circuit formed therein and an optical circuit mounted thereon, and coupled to a first end of an inner optical fiber, a connector assembly to which a second end of the inner optical fiber is fixed, and a housing including a first housing including a slid surface on which a sliding surface included in the connector assembly slides so as to position the connector assembly, a second housing including an engaging protrusion engaged with the positioned connector assembly so as to fix the connector assembly, the second housing being bonded to the first housing and the housing being mounted with the circuit board.

Abstract: An illuminated tracer cable system includes a signal carrying cable comprising a signal connector on each end of the signal carrying cable, an electroluminescent (EL) wire coupled to the signal carrying cable, and a magnetic power connector coupled to an end of the EL wire configured to provide power to the EL wire.

Abstract: The present disclosure provides a flame retardant optical fiber cable. The flame retardant optical fiber cable includes a plurality of bundle binders. In addition, the flame retardant optical fiber cable includes a first layer, a second layer, a third layer, a fourth layer, a fifth layer, a sixth layer, a seventh layer and an eighth layer. The first layer surrounds a plurality of bundle binders. The second layer surrounds the first layer. The third layer surrounds the second layer. The fourth layer surrounds the third layer. The fifth layer surrounds the fourth layer. The sixth layer surrounds the fifth layer. The seventh layer surrounds the sixth layer. The eighth layer surrounds the seventh layer.

Abstract: A channel equalization enclosure equalizes the length of cable variance with customers' equipment in a data center. The channel equalization modules serve as a connection point between cable from a financial institution and patch cords connected to customer equipment. The channel equalization enclosure includes a housing and a plurality of channel equalization modules mounted in the housing. Each channel equalization module has a spool of bulk fiber for accommodating a specified fiber length to equalize a communication channel in the data center.

Abstract: A cable adaptor case for sorting a first plurality of cables and adapting a plurality of types of cables comprising a cable tray for holding cables, an adaptor tray for adapting a first plurality of cables to a second plurality of cables, and a lid which is removably attached and hingably attached to the cable tray.

Abstract: An optical fiber management system (10) includes a telecommunications fixture (14) and a telecommunications tray (16) pivotally mounted to the telecommunications fixture (14) via a hinge structure (18) positioned at an edge (22) of the tray (16). At least one end (24) of the tray edge (22) that is spaced from the hinge structure (18) defines a fiber guide (26) having a generally cylindrical configuration with open ends (28) for guiding fibers in and/or out of the tray (16). The fiber guide (26) is nested within a reinforcement channel (46) defined by a generally U-shaped wall (48) of the telecommunications fixture (14), the U-shaped wall (48) defining opposing vertical wall portions (50) for abutting the cable guide (26) of the tray (16) for retaining the cable guide (26) within the reinforcement channel (46) during pivotal movement of the tray (16).

Abstract: This optical fiber cable comprises an optical unit obtained by creating strands of a plurality of optical fiber tape cores, a tube in which the optical unit is housed, and a cable sheath that covers the outside of an aggregate of a plurality of tubes. The optical fiber tape cores have provided thereto, between some or all of optical fiber cores when a plurality of optical fiber cores are positioned in parallel, and intermittently in the longitudinal direction thereof, connecting parts that connect adjoining optical fiber cores, and non-connecting parts at which adjoining optical fiber cores are not connected. The tube has a Young's modulus lower than the Young's modulus of the cable sheath, and the aggregate is such that the plurality of tubes on the inside of the cable sheath deform elastically with respect to one another, with some thereof being in surface contact with the cable sheath.

Abstract: A tool device for installing an optical fiber inside a user premises includes a neck, a coupling joined to the neck for attachment to a leading end of an adhesive syringe or an extension pole, and a head joined to a leading portion of the neck. The head has a leading edge of a certain width, and a passageway for receiving an optical fiber and guiding the fiber to a position proximate to the leading edge. The width of the leading edge is such that when the edge is held transversely across a structural corner containing an adhesive bead, and an optical fiber is received in the passageway in the head and directed ahead of the leading edge, the edge embeds the fiber in the bead when the edge is swept along the corner with the optical fiber positioned between the edge and the adhesive bead.

Abstract: A lens arrangement for an optical unit operating in a predetermined spectral range, includes at least two lenses (11-14, 114) of material, which transmits in the spectral range, and a common casing (15), in which the lenses are arranged sequentially. The lenses are at least substantially aligned radially, axially and angularly inclined relative to a common optical axis. Adjacent lenses in the sequence are mounted to allow relative movement therebetween. Abutment faces (2) of the lenses rest against one another. An elastic tensioner (21) pretensions the sequence of lenses in the axial direction. Only one of the lenses (11) in the sequence is axially aligned by way of the common casing. Only a portion of the lenses (11, 114) in the sequence are radially aligned by the common casing; the remaining lenses are aligned with respect to one another by the abutment faces of the respectively adjacent lenses.

Abstract: The present invention provides a filter assembly structure, which comprises a filter holder and at least one filter, wherein the at least one filter is mounted on the filter holder in a way of magnetic attraction. In a way of magnetic attraction, the present invention achieves quick mounting and disassembling between the filter and the filter holder, and solves the phenomenon of getting stuck when the filter is being mounted on the conventional filter holder; and the cancelation of the conventional slot leads to that the thickness of the entire filter holder is greatly reduced and the vignetting will not happen after the filter is mounted, and the photographing effect is improved. When in use, the filter is not easy to slide down due to the quality of the conventional slot of the holder and the filter's own weight, and the mounting is stable and reliable. At the same time, the filter is very flexible and convenient when it is adjusted to slide up and down or to turn left and right.

Abstract: A joining mechanism is for movably connecting a base with a lens unit of a camera module. The lens unit includes a supporting member and a frame, and the supporting member supports an optical lens. The joining mechanism includes a spring sheet and a resilient member. The spring sheet is connected to the supporting member and the frame, and the resilient member is connected to the base and the spring sheet. The spring sheet includes an L-shaped structure which has a first section that extends along a first axis direction and a second section that extends along a second axis direction. The first section has a first recessed structure and a second recessed structure which extend along the second axis direction. The resilient member is affixed to the first recessed structure, and the first recessed structure is disposed between the second recessed structure and the second section.

Abstract: One embodiment comprises: a housing; a bobbin, which is arranged inside the housing and is for mounting a lens; first coils arranged around the outer peripheral surface of the bobbin; a first magnet arranged in the housing; a second magnet arranged at the bobbin and spaced from the first coils; and a first position sensor arranged in the housing and sensing the intensity of a magnetic field of the second magnet, wherein the length of the second magnet in the direction of an optical axis is shorter than the length of thereof in the direction perpendicular to the direction of the optical axis.

Abstract: An imaging apparatus includes: an imaging unit; an image clipping unit configured to clip a predetermined area from each of images; an analyzing unit configured to analyze the sequentially clipped predetermined areas and generate an analysis result indicating an identified subject; an autofocus (AF) target determination unit configured to determine an AF target in the images based on the analysis result; an AF mode determination unit configured to select and determine an optimal AF mode based on the analysis result and a determination result; a touch panel; an input detection unit; and an imaging control unit configured to repeat control of moving a position of the predetermined area, causing the analyzing unit to analyze the predetermined area of a latest image, causing the AF target determination unit to determine the AF target, and causing the AF mode determination unit to select and determine the optimal AF mode.

Abstract: A lens structure includes a lens barrel and a lens. The lens barrel includes at least two first locking structures. The lens is disposed in the lens barrel and includes at least two second locking structures. The first locking structures are respectively locked to the second locking structures, so that the lens is fixed to the lens barrel.

Abstract: A lens barrel includes a first moving barrel, a second moving barrel disposed on an object side and an outer circumference side of the first moving barrel and configured to hold an optical element different from a lens, a guide barrel that has a first rectilinear groove that guides a movement of the first moving barrel, and a second rectilinear groove that guides a movement of the second moving barrel in the optical axis direction, and a cam barrel rotatable relative to the guide barrel and having a first cam groove and a second cam groove. The first moving barrel includes a first protruding member engaged with the first rectilinear groove and the first cam groove. The second moving barrel includes a second protruding member engaged with the second rectilinear groove and the second cam groove.

Abstract: An interchangeable lens assembly includes a plurality of lens-side claw portions configured to enable engagement with a plurality of camera-side claw portions, and a lock pin concave portion in which a lock pin is inserted. Furthermore, ?1 is an angle formed by a line passing through a fifth lens-side end and an optical axis, and a line passing through a center of a lock pin concave portion and the optical axis, and ?2 is an angle formed by a line passing through a fourth lens-side end and the optical axis, and a line that passes through the center of the lock pin concave portion and the optical axis. In the above, ?1 and ?2 satisfy a predetermined conditional expression.

Abstract: An imaging apparatus mutually communicates with an interchangeable lens, via a first communication channel. The imaging apparatus receives optical data transmitted from the interchangeable lens via a second communication channel. The imaging apparatus transmits information relating to a timing for the interchangeable lens to obtain the optical data to the interchangeable lens, and the interchangeable lens obtains the optical data based on this information.

Abstract: A camera control unit obtains information related to an optical correction of an interchangeable lens from an intermediate accessory by a second communication via a second communication path. The camera control unit controls a communication in a manner that the above-described information is used for the optical correction of the interchangeable lens.

Abstract: A zoom optical system comprises, in order from an object: a first lens group (G1) having positive refractive power; a second lens group (G2) having negative refractive power; and a subsequent group (GR) including at least one lens group. Upon zooming, distances between the first lens group (G1) and the second lens group (G2) and between the second lens group (G2) and the subsequent group (GR) change. The subsequent group (GR) comprises a focusing group (Gfc) having negative refractive power for focusing. The first lens group (G1) comprises a 1-1st lens that has positive refractive power and is disposed closest to the object. A following conditional expression is satisfied: 0.20<f1/fR<0.85 where, f1 denotes a focal length of the first lens group, and fR denotes a focal length of a lens component, in the subsequent group, closest to an image surface.

Abstract: The rear attachment lens has a positive refractive power as a whole, and is attached to an image side of a main lens so as to change a focal length of the whole lens system after attachment to a focal length longer than a focal length of the main lens. The rear attachment lens includes a most object side lens that is a lens which has a negative refractive power and is disposed to be closest to an object side, and a most image side lens that is a lens which has a positive refractive power and is disposed to be closest to the image side.

Abstract: Provided is a zoom lens including, in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; a third lens unit having a positive refractive power; a fourth lens unit having a negative refractive power; a fifth lens unit having a negative refractive power; and a sixth lens unit having a positive refractive power, wherein an interval between adjacent lens units is changed during zooming, wherein the first lens unit is configured to move toward the object side during zooming from a wide angle end to a telephoto end, and wherein a focal length of the first lens unit, a focal length of the sixth lens unit, and a back focus at the wide angle end are appropriately set.

Abstract: An imaging lens unit capable of more effectively suppressing positional deviation of a lens element and a simple manufacturing method thereof. In the imaging lens unit 1, adjacent lens elements of a first lens element 10, a second lens element 20, a third lens element 30, a fourth lens element 40 and a fifth lens element 50, a lens barrel 2 and the first lens element 10, and the lens barrel 2 and the fifth lens element 50 are bonded at a surface modification portion formed by irradiation with vacuum ultraviolet light.

Abstract: There is provided an imaging lens with high resolution which effectively achieves low-profileness while maintaining the wide field of view, and favorably corrects aberrations. The imaging lens comprising a first lens having negative refractive power, a second lens having positive refractive power, a third lens, a fourth lens having positive refractive power, a fifth lens having negative refractive power as a double-sided aspheric lens, and a sixth lens as a double-sided aspheric lens, wherein the first lens has a concave surface facing the image side, and the aspheric surface on the image side of the sixth lens is formed as a concave surface near the optical axis and has at least one pole point at an off-axial point, and a below conditional expression (1) is satisfied: ??45°??(1) where ?: a half field of view.

Abstract: A zoom lens including a first lens unit that has a positive refractive power, a second lens unit that has a negative refractive power, and at least one lens unit, in which the first lens unit, the second lens unit, and at least one lens unit are disposed from an object side to an image side in the above order. The first lens unit is formed of a single piece of lens element, and the zoom lens includes a positive lens on a side closest to an image. An Abbe number of the positive lens, back focuses at a wide angle end and a telescopic end, and focal lengths of the zoom lens at the wide angle end and the telescopic end are each set appropriately.