Abstract: A method and apparatus are described which provide for wavelength drift compensation in a photonic waveguide by application of an electric field to a waveguide having a strained waveguide core.

Abstract: Embodiments of the present invention are generally related to embodiments of the present invention relate to a fiber stretchers module for use in the 1550 nm wavelength range. In one embodiment of the present invention, a fiber stretcher module for use in the 1550 nm wavelength range comprises a fiber having a relative dispersion slope, RDS, and a relative dispersion curvature, RDC, wherein a ratio of said slope to said curvature is between about 30 nm and about 0 nm, having a dispersion value of less than about ?10 ps/(nm·km) at about 1550 nm, and a RDS is equal to or greater than 0.

Abstract: A waveguide type optical switch that can reduce the number of intersections in a matrix optical switch having the configuration of connecting unit optical switches and optical combining devices or optical branching devices to have a connecting function from “multiple inputs to one output” to “one input to multiple outputs”. To reduce the number of intersections in an entire matrix optical switch, an optical combining device of M inputs and one output is divided into (M?1) pieces of unit optical combining elements each having two inputs and one output, which are arranged immediately after (N?1) pieces of respective output ports excluding one piece of the output port closer to the input in the matrix optical switch out of N pieces of the output ports in the optical switch of one input and N outputs.

Abstract: The present invention relates generally to rotatable optical couplings, and more particularly to a manually separable and re-connectable optical-electrical rotary joint. The invention provides a manually separable optical-electrical rotary joint in which an optical signal and electrical signal are transmitted while a downstream component rotates relative to an upstream component, for example, as driven by a motor at the upstream component. Further, the downstream component can be easily manually unplugged from the upstream component.

Abstract: There is provided a high power laser rotational optical assembly for use with, or in high power laser tools for performing high power laser operations. In particular, the optical assembly finds applications in performing high power laser operations on, and in, remote and difficult to access locations. The optical assembly has rotational seals and bearing configurations to avoid contamination of the laser beam path and optics.

Abstract: A ferrule 10 includes holding holes 16, a light incidence/emission plane 21 to pass light entering or emitted from optical fibers F2 respectively held at the holding holes 16, lenses 31 disposed on an optical axes between the respective holding holes 16 and the light incidence/emission plane 21, and two or more guide portions. A second optical axis L2 between the light incidence/emission plane 21 and the ferrule 10 on the other side is inclined relative to a Z direction. A positional relation between the guide portions is 180-degree rotationally symmetric around a reference axial line extending in the Z direction. The lenses 31 is disposed disproportionately in a direction opposite to an inclination direction of the second optical axis L2 from a position line-symmetric relative to a straight line crossing with the reference axial line and parallel to an X direction.

Abstract: To provide a method for assembling an optical connector with which the optical connector can be easily assembled. An optical connector is assembled by preparing a holding cap that holds a frame member and a plug housing while maintaining a relative positional relationship between the frame member and the plug housing, inserting a ferrule into the frame member, and connecting the plug housing and the rear housing to each other.

Abstract: An alignment block for aligning a multicore fiber has a body with a front face and a rear face, and includes a capillary extending between a front opening at the first face and a rear opening at the rear face. The capillary has an inner circumference that includes an alignment surface corresponding to the multicore fiber alignment surface. The front opening is shaped to fit closely around the multicore fiber so as to prevent non-longitudinal movement of the multicore fiber relative to the alignment block body. The rear opening is shaped to fit around the multicore fiber so as to allow a selected amount of non-longitudinal movement of the multicore fiber relative to the alignment block body. The capillary provides tapered transition between the rear opening and the front opening. Movement of the multicore fiber along the capillary causes the multicore fiber alignment surface to be urged against the capillary alignment surface so as to align the multicore fiber cores relative to the alignment block body.

Abstract: A fiber optic termination includes a homogeneous flexible body comprising a first polymer comprising a plurality of grooves defined therein, each groove configured to receive a corresponding filament of the fiber optic ribbon; each groove carrying a coating comprising a second polymer, each coating forming a melt-bond adhesive for attaching the associated groove to a first portion of a corresponding filament while leaving a second opposing portion of the corresponding filament and lateral side portions of the corresponding filament between the first and second portions substantially accessible for connection to a mating component; wherein the first polymer has a first melting point that is higher than a second melting point of the second polymer causing the second polymer to melt to bond the filaments to the grooves without melting the first polymer when the second polymer is heated to a temperature between the first and second melting points.

Abstract: An improved, reversibly terminable fiber stub connector assembly is provided that can be readily and positively terminated in the field using simple termination tools. This allows repositioning or replacement of fiber optic cable field fibers if termination is not acceptable in performance. The tool may be a hand-held tool, or used in conjunction with a connector support structure to provide simplified and expeditious field termination of fiber optic cables. The cam tool can include a throughbore that enables connection of a patchcord to the stub fiber of the connector during or shortly after termination without removal of the termination tool. Accordingly, field testing of the connection can be made at the site of termination.

Abstract: In the optical connector plug, a length from the end face of the capillary of the ferrule to the front end surface of the flange in the axial direction is larger than a length from the front end of the forward portion of the first accommodation space of the plug frame to the rear end surface of the rearward portion of the plug frame in the axial direction, and in a state in which the front end surface of the flange is in contact with the rear end surface of the plug frame, the end face of the capillary is located in the second accommodation space.

Abstract: An optical transmission body includes a substrate having a through hole penetrating therethrough in a thickness direction thereof; a cladding member at least a part of which is positioned to be filled in the through hole, and which has an optical waveguide hole which is positioned inside the through hole and penetrates through the cladding member in a thickness direction thereof and a guide hole portion which is positioned away from the optical waveguide hole and is concave in the thickness direction; and a core member disposed inside the optical waveguide hole.

Abstract: An electronic device includes a board including an electronic component, a plurality of optical interface units that include an optical element which input or output light and that are provided on the board, and a plurality of individual positioning units that position a plurality of respective optical waveguides which are separate from each other at least at tip portions on a side of the optical interface units and which are optically aligned with the optical element with respect to the optical interface units independently from each other.

Abstract: A ferrule fixing member includes a fixing member configured to fix a ferrule to hold an optical fiber to a retaining member including a retaining hole to insert the ferrule, a locked portion configured to be locked to a locking portion formed on the retaining member and to be restricted from moving, with respect to the retaining member, in an insertion direction of the ferrule and in a direction orthogonal to the insertion direction, and a main body configured to elastically press the ferrule toward the bottom of the retaining hole by elastic deformation thereof.

Abstract: A multi-wavelength optical signal receiving apparatus receives a multi-wavelength optical signal, demultiplexes the received optical signal to convert into an electric signal. The multi-wavelength optical signal receiving apparatus includes a demultiplexing part including a demultiplexer configured to divide the received multi-wavelength optical signal into a plurality of optical signals by wavelength, a photoelectric conversion part to convert the optical signals into electric signals and amplify the electric signals, and at least one lower securing plate configured to couple the parts by an active alignment method. Accordingly, an additional polishing or coating process is not required, which simplifies the manufacturing process, and it is possible to manufacture the apparatus in blocks, thereby increasing mass-productivity.

Abstract: In an embodiment, an optical receptacle includes a first lens face that is disposed on a first surface 2a on a photoelectric conversion device 3 side in an optical receptacle main body so that a portion of light of the light of a light-emitting element 7 is incident thereon, a first reflective surface 14 that is disposed on a second surface 2b on the side opposite to the first surface 2a and reflects the light that has been incident on the first lens face 11, and a second reflective surface 16 that is disposed on the first surface 2a continuously with the first lens face 11 so that a remaining portion of light of the light of the light-emitting element 7 is incident thereon and reflects the incident remaining portion of light towards a light-receiving element 8 as monitor light are included.

Abstract: There are provided high power laser connectors and couplers and methods that are capable of providing high laser power without the need for active cooling to remote, harsh and difficult to access locations and under difficult and harsh conditions and to manage and mitigate the adverse effects of back reflections.

Abstract: A multi semiconductor device package includes a laser die and a photonics die. The laser die generates light and includes a laser facet that emits light from a light emitting surface. The photonics die modulates light emitted from the laser light emitting surface and includes a device side cavity that exposes an embedded waveguide optically connected with the laser facet. A laser die and photonics die attachment method includes positioning a device side of the laser die relative to a device side of the photonics die, engaging an alignment feature of the photonics die with an alignment feature of the laser die, installing the laser die within a device side recess of photonics die, electrically connecting the laser die with the photonics die, and optically connecting a laser facet of the laser die with an embedded waveguide of the phonics die.

Abstract: Provided is a one-piece injection molded part which is used to assemble an optical module, the one-piece injection molded part including: a plurality of plates and a plurality of living hinges. The plurality of plates includes an input faceplate, an output faceplate, a left side plate, a right side plate, a bottom plate and a lid plate and is integrally formed.

Abstract: A fiber optic ribbon cable includes a fiber optic ribbon or stack of ribbons, strength members surrounding the ribbon or stack, and a jacket defining an exterior of the cable. The jacket forms a cavity through which the strength members and the ribbon or stack extend. The ribbon or stack has a bend preference, but the strength members are flexible and do not have a bend preference. Furthermore, the jacket is structured such that the jacket does not have a bend preference. The cavity is sized relative to the ribbon or stack in order to allow the same to bend and twist within the cavity with respect to the jacket as the cable bends, facilitating movement of the corresponding optical fibers to low-stress positions within the cavity and decoupling the bend preference of the ribbon or stack from transfer to the jacket.

Abstract: Disclosed is a novel central-tube cable with high-conductivity conductors. The novel central-tube cable according to the present invention yields a fiber optic cable with a smaller diameter than found in stranded-tube-cable designs. The central-tube cable features (i) a buffer tube containing optical conductors, (ii) radial strength members, and (iii) high-conductivity conductors coated with a dielectric material, such as polypropylene. The dielectric coating helps to prevent the high-conductivity conductors from shorting.

Abstract: The present disclosure relates to a fiber optic retention device to properly accommodate for cable management arrangements and schemes in telecommunication infrastructures that are massive in scale and/or require subsequent adaptation of the infrastructures. One embodiment includes a C-shaped opening with a door that snap mounts to the body with two snaps and pivot posts. One embodiment includes a C-shaped opening with a door that snap mounts to the body and is retained by a living hinge on an opposite end. One embodiment includes a C-shaped opening with flexible fingers that retain the cables within the opening. One embodiment includes a C-shaped opening with a door which moves parallel to a front opening. The door includes an angled surface to allow cables pressed onto the angled surface to move the door against a biasing member.

Abstract: A fiber optic cable guide may have an elongated base member that is curved along at least a portion of its length to define and limit the amount of curvature to be applied to a portion of a fiber optic cable while also defining the angular offset applied to the cable. The guide may be releasably attachable to a cable, and may include a cable retention member at each end of the base member that retains the cable with the guide.

Abstract: A laser alignment device with at least one movable mirror, a laser-target alignment sensor with movable mirrors and a laser alignment method are disclosed. The laser alignment device with the movable mirror comprises an image acquisition means for collecting incident lasers, a moveable mirror for reflecting the lasers to the image acquisition means and is operable to move linearly with respect to the image acquisition means, and a lens for forming an image of a target in the image acquisition means. The present disclosure achieves linear motion of the movable mirror with high accuracy in a small range, which in turn achieves fast and accurate alignment of the laser. It solves the problem of laser spots overlapping, reduces alignment time and improves shooting accuracy.

Abstract: An apparatus for supporting electronic equipment on the exterior of an outdoor structure includes a base member configured to be coupled to the exterior of the outdoor structure, a first housing coupled to the base member, and at least one shelf disposed within the first housing. Each shelf includes a support surface, a plurality of support orifices disposed therethrough, and at least one first communication orifice disposed therethrough. A plurality of support members is configured to be inserted through the support orifices. A floor member is coupled to the first housing and has at least one second communication orifice disposed therethrough. The plurality of support members is configured to couple the at least one shelf to the floor member. A substantially transparent second housing is mounted on the floor member.

Abstract: Provided is a lens barrel comprising a lens holding member that holds a lens; a guide axle that extends in a direction parallel to an optical axis of the lens; and an oil-retaining bearing that is fixed to the lens holding member, and into which the guide axle is slidably inserted. In the lens barrel, the guide axle and the oil-retaining bearing may be made of metal, and at least a portion of the lens holding member to which the oil-retaining bearing is fixed may be made of resin.

Abstract: Embodiments provide a lens moving apparatus including housing to support a driving magnet, a bobbin provided at an outer circumferential surface thereof with a coil located inside the driving magnet, the bobbin being moved in a first direction parallel to an optical axis within the housing via electromagnetic interaction between the driving magnet and the coil, a lower elastic member to connect a lower portion of the housing and a lower portion of the bobbin to each other, both ends of the coil being electrically connected to the lower elastic member, the lower elastic member having a first terminal electrically connected to an external power source so as to supply external power to the ends of the coil, and a printed circuit board provided at one side surface of the housing, the printed circuit board having a second terminal electrically connected to the external power source.

Abstract: A lens device comprising a barrel body which movably holds a focus lens in an optical axis direction; a focus ring provided on an outer circumferential part of the barrel body and having a regulated rotation range; a rotation position detecting unit which detects a rotation position in the rotation range of the focus ring; a touch sensor provided on the outer circumferential part of the barrel body so as to be adjacent to the focus ring; and a control device which perform absolute position control of moving the focus lens to an absolute position corresponding to the rotation position detected by the rotation position detecting unit and relative position control of moving the focus lens to a relative position corresponding to a sliding amount on the touch sensor on an outer circumferential surface in a circumferential direction.

Abstract: A lens barrel includes at least one lens, the optical axis of the lens; the first frame (the fixed frame 900) having the first restricting portion (901, 902) and having an approximately cylindrical shape about the optical axis; the second frame (1000) having the cam groove (1036) and having an approximately cylindrical shape about the optical axis; the third frame (510) having the guide portion (511) which restricts inclination thereof with respect to the first contact portion (514) and the optical axis and having an approximately cylindrical shape about the optical axis; the drive arm (520) having a cam follower (523), the second restricting portion (524, 525) and the second contact portion (526), and having an approximately arcuate shape constituted of a portion of a circular cylinder about the optical axis or an approximately plate shape; the guide shaft (601) for guiding the guide in a movable manner in the optical axis direction; and the spring (603).

Abstract: An imaging lens is provided with: a first lens with negative power; a second lens with negative power; a third lens with positive power; and a fourth lens with positive power. The cemented fourth lens is formed from an object side lens with negative power and an image side lens with positive power. The thickness of a resin adhesive layer that bonds the object side lens and the image side lens is 20 ?m or greater on the optical axis, and when Sg1H is the amount of sag in the image side lens surface of the object side lens and Sg2H is the amount of sag in the object side lens surface of the image side lens. The bonding operation is easy without damage occurring to the cemented surfaces, with a design that takes into account thickness of the resin adhesive layer; therefore various forms of aberration can be corrected.

Abstract: An imaging lens module includes first, second, third and fourth optical lens elements that are arranged sequentially from an object side to an image side along an optical axis and that respectively have positive, positive, negative and negative refractive powers, and a fixed aperture stop that is disposed between the object side and the second optical lens element. The fourth optical lens element has an object-side surface and an image-side surface that has a concave surface segment near the optical axis. At least one of the object-side surface and the image-side surface of the fourth optical lens element has at least an inflection point.

Abstract: An optical imaging assembly is provided, having an optical axis, an object axis, a light-transmissive sleeve enclosing the object axis, being telecentric in object space, having at least three refractive lens elements, at least one of said elements having surfaces having at least one of cylindrical and acylindrical prescription, with an image plane, wherein the object being imaged lies within the sleeve.

Abstract: Selected properties of a microplate comprising a plurality of sample wells are obtained by repetitively performing focusing functions to determine sequentially a well surface z-position and then a plate bottom z-position for a corresponding current x-y position based on an intensity indicative of a best focus of the well surface and the plate bottom respectively. The well surface z-position and the plate bottom z-position corresponding to each of the plurality of x-y positions are determined by repeating the steps of positioning the objective lens, performing the focusing function to determine the well surface z-position, and performing the focusing function for the plate bottom z-position. The well surface z-positions and the plate bottom z-positions at the plurality of x-y positions are used to generate data to determine the selected properties of the microplate.

Abstract: Certain examples provide a structured illumination microscopy system. The example system includes a laser source to generate excitation illumination directed toward a target. The example system includes a modulator to modulate the excitation illumination temporally in a controllable spatial pattern to be constructed on the target object to provide sub-diffractional resolution in a lateral direction with respect to the target. The example system includes two synchronized laser scanning mirror units in confocal arrangement, the laser scanning units to be synchronized and controlled by a computing device, a first of the scanning mirror units to receive the modulated excitation illumination and project the modulated excitation illumination on the target object and a second of the scanning mirror units to receive emission fluorescence from the target and project the emission fluorescence.

Abstract: A cover-slip suitable for use in examination by an optical microscope. The cover-slip comprises a planar portion of substantially rigid and transparent material and further comprises a tab contiguous with or adjacent to or attached with the planar portion. The tab is divertable from the plane of the planar portion along a predetermined bending region, thereby allowing holding and displacing the cover-slip e.g. when the cover-slip lies on a flat surface.

Abstract: An optical measurement system for measuring a critical dimension having a nanostructured surface including a nanostructure formed on a plane. The optical measurement system includes an image recording module including a microscope optical system which records a defocused image having an nonuniform degree of defocusing with respect to the nanostructured surface, an optical scheme parameter control module which sets and outputs to the microscope optical system optical scheme parameters for the microscope optical system, an image calculation module which receives receiving the optical scheme parameters set by the optical scheme parameter control module and calculates an image of the nanostructured surface, and a comparison module which compares the defocused image recorded by the image recording module and the image calculated by the image calculation module.

Abstract: An Integrated Laser Phase and Amplifier Compensation System (ILPACS) for end-to-end compensation of high-energy laser for propagation through turbulence with non-cooperative target are described. ILPACS using interferometric slaving technique and stand-alone adaptive optical systems to effect pre-compensation of phase aberrations in turbulent medium, providing pre-compensation for aberrations in a laser amplifier is presented. ILPACS enables integration with a short pulse mode locked laser for use in Target Feature Adaptive Optics (TFAO) or with a mode locked ultra short pulse laser with carrier envelope phase stabilization for use in Broadband Coherent Adaptive Optics (BCAO).

Abstract: A micromechanical component and a method for producing a micromechanical component are described. The component has: a frame; a plate spring that is connected to the frame and that has a front side and a rear side facing away from the front side; a mirror element that is situated on the front side of the plate spring and is connected to the front side of the plate spring in such a way that the mirror element is suspended on the frame so as to be capable of displacement; and at least one piezoelectric strip that is connected to the rear side of the plate spring; the plate spring being elastically deformable through the application of an electrical voltage to the at least one piezoelectric strip in order to displace the mirror element.

Abstract: A confocal optical scanner according to one aspect of the present invention includes an optical filter. The optical filter includes a plate-shaped body including a first surface and a second surface opposite to the first surface. The first surface has a plurality of pinholes. The optical filter further includes a plurality of first microlenses on the second surface. The first microlenses are disposed nearly coaxially with the pinholes, respectively.

Abstract: A plastic optical component includes a base member made of a first plastic, and a covering member disposed over a surface of the plastic member. The covering member is made of a second plastic. The water absorption of the first plastic is lower than the water absorption of the second plastic.

Abstract: A beam splitting module and a projector device using the same are provided. The beam splitting module comprises a projector, a first reflective mirror and a second reflective mirror. The projector projects a first split image, a second split image and a third split image. The first reflective mirror reflects the first split image to a real image forming plate to form a first projection image. The second reflective mirror reflects the second split image to the real image forming plate to form a second projection image. The third split image is projected on the real image forming plate through a space between the first reflective mirror and the second reflective mirror to form a third projection image.

Abstract: A head-up display system includes a display unit including a projection unit configured to be positioned adjacent to a windshield, a display screen, and a controller. The projection unit is operable to project a current image generated by the controller onto a display screen. A position sensor is electrically coupled to the display unit and is operable to detect a position of an object with respect to the display unit. The controller is configured to dynamically update the current image based upon the position. A method of detecting an object is also disclosed.

Abstract: A display device, particularly for a vehicle, includes a base element and a combiner. The combiner moves by a drive mechanism between a position for use, in which a virtual image can be projected onto the combiner, and a stowed position. The drive mechanism includes a translation mechanism.

Abstract: A display device includes a first display unit, a second display unit, and a first image acquisition unit, a second image acquisition unit, an image processing unit, and an image output unit. A display method includes acquiring a first image and a second image by first image acquisition unit and second image acquisition unit respectively, both of the first image and the second image include the target image; determining a display information in accordance with the target image; determining a first display position in the first image and a second display position in the second image in accordance with the target image; displaying the first display image corresponding to the display information at the first display position and the second display image corresponding to the display information at the second display position.

Abstract: A method is provided that includes operating a first camera to capture a first image stream and operating a second camera to capture a second image stream. The method further includes initially using the first image stream to display a first field of view in a live-view interface of a graphic display and, while displaying the first image stream in the live-view interface, receiving an input corresponding to a zoom command. The method further includes, in response to receiving the input: (a) switching from using the first image stream to display the first field of view in the live-view interface to using a combination of the first image stream and the second stream to display a transitional field of view of the environment in the live-view interface and (b) subsequently switching to using the second image stream to display the second field of view in the live-view interface.

Abstract: A transmission type head mounted display device includes an image display unit including an image-light generating unit configured to generate image light on the basis of image data and emit the image light, the image display unit causing a user to visually recognize the image light as a virtual image and transmitting an outside scene in a state in which the image display unit is worn on the head of the user, and a control unit configured to set, as the image light that the control unit causes the user to visually recognize using the image display unit, specific image light generated on the basis of set specific image data and changing according to elapse of time.

Abstract: An interaction method in an aircraft cockpit between a pilot and his environment. The cockpit includes a plurality of activation zones which each comprise an element of interest which is connected with the cockpit or the external environment thereof and which can be activated on the basis of the interaction of at least one movable member of the pilot's body with the activation zone. The method includes the steps of establishing, in a manner repeated over time, the spatial position of the movable member of the pilot's body and a comparison between such spatial position and the position of the activation zones and automatic activation of the activation zone in the environment of the pilot in order to inform the pilot about the availability of further interaction with the element of interest involved. The method improves the interaction between the pilot and his environment connected with the cockpit.

Abstract: A dual-view display substrate and a dual-view display device are provided. The dual-view display substrate includes a base substrate; first display areas and second display areas are alternately arranged and disposed on the base substrate; the first display areas and the second display areas are respectively provided with display units; main light-emitting directions of the display units of each first display area are consistent with each other and correspond to a first view region from which only the first display areas can be viewed; and main light-emitting directions of the display units of each second display area are consistent with each other and correspond to a second view region from which only the second display areas can be viewed.

Abstract: An optical component called the Phase Space Combiner (PSC) is designed to join several bundles of rays. The bundles of rays, when represented in ray phase-space, occupy non-connected regions before passing through the PSC, while their representation in ray phase space occupies a single simply connected region (without holes) after passing through the PSC. Obviously, when used in reverse way it splits one bundle in several parts. We present herein the idea of using Multiple Individual Optics, MIO, not for collimating the light from the LEDs but as a PSC. Then a Single Common Optics, SCO, which can be an optical train, is used to get the desired intensity pattern. This hybrid SCO and MIO strategy combines most of the advantages of both approaches.

Abstract: The disclosure generally relates to highly efficient light duct light splitters that are capable of splitting the light propagating within a light duct into two different ducts, with nearly 100 percent efficiency. In particular, the described light splitters are configured in a “Tee” shape with a reflective splitter element.