Abstract: An integrated optical assembly with one or more integrated tunable lens elements within a lens barrel is described. The integrated optical assembly may be a part of an imaging device. The integrated optical assembly may include an optical element, a tunable lens element, and a lens barrel. The tunable lens element includes a tunable lens that is affixed to and communicatively coupled to a mount and is configured to adjust its optical power in accordance with an applied signal. The lens barrel is configured to hold the tunable lens element in optical series with at least one other optical element within the lens barrel. The lens barrel includes an integrated electrode that communicatively couples the mount to a controller which supplies the applied signal.

Abstract: Some embodiments of the present disclosure provide an infrared-transmitting housing for preventing light interference and an infrared positioning handle. The infrared-transmitting housing for preventing light interference includes a first housing and a second housing disposed on an outer side of the first housing, wherein the first housing is an infrared-transmitting member and the second housing is a light-shielding member; the second housing is provided with a via corresponding to a position of an infrared lamp of an external device; and the first housing and the second housing are integrally formed by a two-shot injection molding.

Abstract: Color image sensors and systems are provided. A sensor as disclosed includes a plurality of color sensing pixels disposed within an array, each of which includes a plurality of sub-pixels. Each color sensing pixel within the image sensor is associated with a set of diffraction features disposed in a plurality of diffraction element layers. The diffraction features can be formed from materials having an index of refraction that is higher than an index of refraction of the surrounding material. At least one of the diffraction element layers is formed in a grating substrate on a light incident side of a sensor substrate. Color information regarding light incident on a pixel is determined by applying ratios of signals obtained by pairs of included sub-pixels and calibrated ratios for different colors to a set of equations. A solution to the set of equations provides the relative contributions of the calibrated colors to the incident light.

Abstract: Head-mounted displays (HMD) or other suitable optical equipment with waveguides comprising one or more slanted buried diffractive gratings and methods for fabricating said waveguides are described herein. In an embodiment, an HMD comprises an optical element and an image source that provides an image beam to the optical element. The optical element may comprise a first flat surface, a second flat surface, and a buried diffractive grating disposed between the first surface and the second surface. The buried diffractive grating may be positioned in a slanted arrangement at a particular angle relative to the first flat surface and the second flat surface.

Abstract: An optical filter is configured to have a regular transmittance of 60% or higher for light having a wavelength of 950 nm. The optical filter is also configured to be contracted by being heated at a temperature of 85° C. or higher, or a size change of the optical filter occurs from room temperature to 300° C. as monotonous increase in a tensile mode of a thermomechanical analyzer (TMA).

Abstract: A retardation plate includes a transparent substrate, and a liquid crystal layer formed over the transparent substrate, wherein, when a tensile test is performed by pulling the retardation plate in a predetermined direction at a glass-transition temperature of the transparent substrate, a tensile elongation C defined by an equation of C=(B?A)/A×100 is 12% or more, where A is an initial size of the retardation plate in the predetermined direction, and B is a size of the retardation plate in the predetermined direction when a crack penetrating the liquid crystal layer in a thickness direction occurs over a length of 1 mm or more on a surface of the liquid crystal layer.

Abstract: The present invention provides a A light absorption anisotropic film that, in a case of being applied to an image display device, it is possible to suppress redness of an image originating from the image display device, which is reflected on surrounding members arranged around the image display device; and an optical film and an image display device. The light absorption anisotropic film of the present invention is a light absorption anisotropic film is formed of a composition containing a liquid crystal compound and a dichroic substance, in which the light absorption anisotropic film has two main surfaces facing each other, an angle between a normal direction of the main surface of the light absorption anisotropic film and a transmittance central axis of the light absorption anisotropic film is 0° to 45°, and predetermined requirements are satisfied depending on the angle.

Abstract: A multilayer optical film includes a plurality of optical repeat units. Each of the optical repeat units includes at least four sequentially arranged first through fourth layers including first and third layers having respective f-ratios f1 and f3. The optical film has a first order reflection band having a reflection peak height Rp1 and any second order reflection band has a reflection peak height Rp2, where Rp1/Rp2?5. Rp1/Rp2 may remain at least 5 when changing at least one of the f-ratios f1 and f3 continuously by 0.2. A thickness of each of the second and fourth layers can be less than a thickness of each of the first and third layers by at least a factor of 2, or a thickness of a same one of the first and third layers can differ from a thickness of each other layer by at least a factor of 2.5.

Abstract: An apparatus for displaying an image, including: an input image node configured to provide at least a first and a second image modulated lights; and a holographic waveguide device configured to propagate the at least one of the first and second image modulated lights in at least a first direction. The holographic waveguide device includes: at least a first and second interspersed multiplicities of grating elements disposed in at least one layer, the first and second grating elements having respectively a first and a second prescriptions. The first and second multiplicity of grating elements are configured to deflect respectively the first and second image modulated lights out of the at least one layer into respectively a first and a second multiplicities of output rays forming respectively a first and second FOV tiles.

Abstract: A minimum display unit forming a pattern, displayable by a light guide plate of a display device, has first and second prisms with reflective surfaces in a curved surface shape that is convex relative to an incident surface of the light guide plate. The first and second prisms are configured such that a ratio of light quantities from first and second light sources having different emission colors into the light guide plate, reflected by the reflective surface of the first prism, and directed to a predetermined direction is a first ratio; a ratio of light quantities from second and third light sources having different emission colors into the light guide plate, reflected by the reflective surface of the second prism, and directed to the predetermined direction is a second ratio. The first and second ratios are set such that the minimum display unit is displayed in a predetermined display color.

Abstract: A glazing arrangement includes a first pane having a first main surface and a second main surface, wherein the first pane is provided to at least partially transmit coupled light, a light source for producing light that can be coupled into the first pane, a light extraction system to couple light out of the first pane via one of the two main surfaces, wherein the light extraction system includes a transparent coating with a refractive index that differs from, in particular is higher than, that of the air and that of the first pane, which transparent coating is arranged in a planar manner at least sectionally on one of the two main surfaces.

Abstract: A method of fabricating a compound light-guide optical element (LOE) is provided. A bonded stack of a plurality of LOE precursors and a plurality of transparent spacer plates alternating therebetween is bonded to a first optical block having a plurality of mutually parallel obliquely angled internal surfaces. The block is joined to the stack such that first plurality of partially reflective internal surfaces of the block is non-parallel to the internal surfaces of the LOE precursor. After bonding, a second optical is thereby formed. At least one compound LOE is sliced-out of the second optical block by cutting the second block through at least two consecutive spacer plates having a LOE precursor sandwiched therebetween.

Abstract: A display apparatus includes: a first substrate having a first front surface and a first back surface that is an opposite surface of the first front surface; a liquid crystal layer arranged on the first front surface of the first substrate; a light guide plate having a first main surface facing the first front surface, a second main surface that is an opposite surface of the first main surface and a side surface crossing the first main surface and the second main surface; and a light source unit including a plurality of light emitting elements arranged along a first direction at a position facing the side surface of the light guide plate, and a light emitting surface of the light source unit is arranged to have a different direction from a direction of the side surface of the light guide plate in a thickness direction of the light guide plate.

Abstract: A variety of illumination devices are disclosed that are configured to manipulate light provided by one or more light-emitting elements (LEEs). In general, embodiments of the illumination devices feature one or more optical couplers that redirect illumination from the LEEs to a reflector which then directs the light into a range of angles. In some embodiments, the illumination device includes a second reflector that reflects at least some of the light from the first reflector. In certain embodiments, the illumination device includes a light guide that guides light from the collector to the first reflector. The components of the illumination device can be configured to provide illumination devices that can provide a variety of intensity distributions. Such illumination devices can be configured to provide light for particular lighting applications, including office lighting, task lighting, cabinet lighting, garage lighting, wall wash, stack lighting, and downlighting.

Abstract: A method determines four dimensional (4D) plenoptic coordinates for content data by receiving content data; determining locations of data points with respect to a first surface to creating a digital volumetric representation of the content data, the first surface being a reference surface; determining 4D plenoptic coordinates of the data points at a second surface by tracing the locations the data points in the volumetric representation to the second surface where a 4D function is applied; and determining energy source location values for 4D plenoptic coordinates that have a first point of convergence.

Abstract: A multi-core fiber includes: a plurality of core portions; and a cladding portion surrounding outer circumferences of the plurality of core portions and having a refractive index lower than a maximum refractive index of the plurality of core portions. The multi-core fiber has a mode field diameter of 5 ?m or smaller at a wavelength of 1550 nm, the multi-core fiber has a core pitch of 20 ?m or smaller, the core pitch being an interval between centers of nearest neighboring ones of the plurality of core portions in a cross section orthogonal to a longitudinal direction. The multi-core fiber has inter-core crosstalk of ?20 dB/km or less. The multi-core fiber has a macrobending loss of 0.1 dB/m or less at the wavelength of 1550 nm when the multi-core fiber is bent at a radius of 5 mm.

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

Abstract: The present invention provides a silicon-based integrated optical chip integrating a silicon-based optical modulator and a germanium-silicon detector and a preparation method thereof. A position and dimension of a silicon nitride waveguide are defined by a slot formed by using an etching process, then surplus silicon nitride is removed by means of chemico-mechanical polishing, and an optical waveguide is formed by the silicon nitride in the slot.

Abstract: A method for manufacturing a semiconductor device includes: forming a first waveguide structure and a second waveguide structure on a substrate in which the first waveguide structure and the second waveguide structure is spaced apart from each other by a recess; conformally forming an un-doped dielectric layer to cover the first and second waveguide structures and to form a gap between two corresponding portions of the un-doped dielectric layer laterally covering the first waveguide structure and the second waveguide structure, respectively; and forming a doped filling layer to fill the gap.

Abstract: Various embodiments provide a waveguide with reduced optical power loss. The waveguide comprises a waveguide core having a core index of refraction; and a cladding disposed about at least a portion of a perimeter of the waveguide core. The cladding includes a plurality of layers that define a periodic index of refraction. The plurality of layers includes a core-adjacent layer having a core-adjacent layer index of refraction. The core index of refraction is greater than the core-adjacent layer index of refraction.

Abstract: A novel polymer optical waveguide and method of manufacturing is presented herein. A digitally manufactured process is described which utilizes a micro-dispensed UV optical adhesive as the contour guiding cladding, a fused deposition modeling technology for creating a core, and a subtractive laser process to finish the two ends of the optical interconnect. The optical waveguide can be printed directly on a circuit board in some embodiments. Alternatively, using a slightly modified process including a step to bond the optical fiber to the substrate, the optical interconnect can be manufactured on a flexible substrate.

Abstract: A light polarisation converter for a photonic integrated circuit, comprising: a substrate and a waveguide. The substrate comprises a first surface and a second surface. The waveguide comprises a first waveguide portion in contact with the first surface, and a second waveguide portion in contact with the second surface. The second surface is offset from the first surface along a first axis and a second axis. Each axis is perpendicular to a light propagation direction for converting polarisation of the light. The second waveguide portion is offset from the first waveguide portion.

Abstract: An air-gap HCF connector termination method and connector assembly for factory and field connector assembly termination for patch cables and trunk cables made from HCF, where in multitude of mechanisms can facilitate air-gap between the first and second HCF fiber end-faces, comprising preparing the HCF end-faces using appropriate cleaving methods including mechanical, ultrasonic and laser cleaving, such that the air-gap separation between first and second HCF's can be anywhere between 0.5-100 microns, where reflection at the connector interface is low with RL>35 dB, due to HCF propagation mode effective index matching with index of air.

Abstract: An optical fiber holder includes: a holder body including an accommodating portion, the accommodating portion being configured to accommodate a plurality of optical fibers in a state in which the plurality of optical fibers are arranged in parallel; and a first lid portion configured to be opened and closed relative to the holder body and cover at least a part of the accommodating portion. The accommodating portion includes a pitch conversion portion having a plurality of ridge portions arranged in parallel and a plurality of flat bottom portions between the plurality of ridge portions. The plurality of ridge portions have a uniform height of 0.1 mm or less from the bottom portions, and parallel intervals in between enlarge or lessen from one side toward the other side in a longitudinal direction.

Abstract: An optical connector houses and holds a fusion spliced portion with a short optical fiber fitted to an optical connector ferrule is fusion-spliced with a buffered optical fiber. One end of a protection sleeve which reinforces said fusion spliced portion is configured to be adhered to a buffer on the short optical fiber fitted to the optical connector ferrule and another end is adhered to a buffer of the buffered optical fiber. The protection sleeve has an inner heat shrink tube, an outer heat shrink tube, and at least one element that allows the protection sleeve to be concentric to the ferrule and cable buffer axis.

Abstract: Fiber optical component (1) comprising a plurality of optical fibers (10) each having at least, preferably exactly, one core of glass, preferably made of quartz glass, which is designed in each case to guide a signal light radiation (A), with at least, preferably exactly, one first optical element (11) made of glass, preferably made of quartz glass, which is connected to an inlet surface (11a) with in each case one open end of the cores of the optical fibers (10), preferably further connected to an open end of a cladding of the optical fibers (10) substantially enclosing the core, and designed to receive the signal light radiations (A) from the open ends of the cores of the optical fibers (10) and to emit them to the outside via at least one outlet surface (11b), with at least, preferably exactly, a second optical element (12) made of glass, preferably quartz glass, per optical fiber (10), which is designed and arranged at a distance relative to the first optical element (11) along the direction of propagatio

Abstract: Disclosed is a system and method for communication using an efficient fiber-to-chip grating coupler with a high coupling efficiency.

Abstract: An object of the present disclosure is to reduce transmission loss deviation between ports in an optical cross-connect device using a rotary optical switch. The present disclosure is an optical cross-connect device in which optical switches for switching a plurality of optical paths using optical fibers are connected to each other using optical paths, the optical switch collectively switches the plurality of optical paths using a rotating body, and the optical cross-connect device includes: a cross wiring part which connects an optical path having a large loss in one of the optical switches among the plurality of optical paths which are switched collectively and an optical path having a small loss in the other optical switch of the plurality of optical paths which are switched collectively to an optical path connecting the optical switches to each other.

Abstract: A bulkhead adapter assembly, and method of forming same, is configured at a first end to receive an associated optical fiber connector housing a terminal end of an associated fiber. The adapter assembly is joined to an associated closure at a second end. The bulkhead adapter assembly includes a holder having first and second flexible arms extending axially outwardly from a first end of the holder along a first axis. The first end of the holder includes an opening dimensioned to receive the associated optical fiber therein. A shoulder is formed at a terminal end of each of the flexible arms wherein each shoulder has an undercut extending perpendicularly to the first axis that is configured to operatively engage the associated optical fiber connector. A central portion of the holder has a recess extending inwardly from a second end of the holder, with an opening that receives the associated optical fiber therethrough.

Abstract: The fiber optic adapter according to the present disclosure may include a housing comprising a top wall, a bottom wall, two opposing sidewalls, and a partition wall dividing the housing into two channels. A central shutter pair is attached to the partition wall and has a first arm and second arm configured to extend into the two channels respectively. The first and second arms are sized and shaped to cooperatively close at least one channel, and at least one of the first arm or second arm is configured to be resiliently movable in a direction to open the channel upon insertion of a fiber optic connector. The fiber optic adapter may prevent the entry of dust and other debris.

Abstract: A fiber optic adapter assembly includes an adapter body, a spring clip and a retention cap attached to the adapter body enclosing each of the spring clip and two shutters. The adapter body has a main opening and two pivot walls with latch arms extending away from the main opening, the pivot walls being solid between a top edge and a bottom edge. The spring clip has a plurality of fingers moveably contacting each of shutters, which pivot between a first and second position.

Abstract: An electrical and/or optical contact includes a body and a cable sleeve that prevents unwanted unlocking of a connection, connector, or adaptor housing such a contact. An electrical and/or optical contact (1, 4) incorporates a means for temporarily retaining the cable sleeve to which a pushing/pulling force is applied in order to intentionally lock/unlock the one or more contacts of the connector in its or their receiving cavity. This retaining means is dimensioned so as to generate a force that balances the pulling force exerted on the sleeve, as long as said pulling force remains below a predetermined threshold.

Abstract: A dust cap adapted to fit within a fiber optic adapter. The dust cap includes a dust cap body having a back adapter end and may or may not have a front knob end. The dust cap body is shaped such that the back adapter end has a press fit with a fiber optic adapter. An opening accommodates an adapter ferrule and a flange is secured in an adapter by a stabilizer and projection or dust and port identification cap body. The dust cap also transmits laser light along a longitudinal axis of the solid mass of the dust cap body from just beyond the back adapter end to just beyond the front knob end.

Abstract: An optical connection system includes a first connector having at least one first optical element and a first actuation arm rotatable about a first pivot point. The optical connection system also includes a second connector having at least one second optical element configured to be coupled to the at least one first optical element via an optical connection procedure. The second connector also includes a second actuation arm rotatable about a second pivot point. The first connector is configured to engage the second connector during the optical connection procedure such that the first actuation arm is rotated about the first pivot point, the second actuation arm is rotated about the second pivot point, and an interface between the first actuation arm and the second actuation arm moves away from a longitudinal axis of the optical connection system.

Abstract: A microscale multi-functional optical structure is disclosed. Embodiments of the present disclosure provide a microscale multi-functional optical structure including: a substrate; a first layer formed on the substrate; a multi-functional optical function unit formed using a second layer formed on the first layer to provide various optical functions with the substrate and the first layer; and at least one optical coupling wire formed to include a wire end portion formed to come into close contact with a preset region on the second layer to transmit and receive an optical signal to and from an optical waveguide.

Abstract: An optical module for a data center is disclosed. Embodiments of the present disclosure provide an optical module for a data center including: an optical engine unit optically coupled to a substrate, at least one optical element, at least one electronic element, and at least one optical fiber introduced from the outside to perform a function of transmitting and receiving an optical signal; an optical cable assembly including the at least one optical fiber to transfer the optical signal transmitted to and received from the at least one optical element to the outside; a body unit configured to fix and support portions of the optical engine unit and the optical cable assembly from below; and a housing coupled to the body unit to protect an upper portion of the optical engine unit.

Abstract: Disclosed are a sub-mount, an optical modulation module, and an optical communication device. The sub-mount includes a mount substrate, a signal electrode extending in a first direction on the mount substrate, and a ground electrode separated from the signal electrode and disposed on the mount substrate. Here, the ground electrode includes a lower electrode disposed on a bottom surface of the mount substrate and upper electrodes disposed on one side of the mount substrate and connected to the lower electrode through a side surface or the inside of the mount substrate.

Abstract: This optical device includes at least one magnetic element including a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer, a laser diode, and a waveguide, in which the waveguide includes at least one input waveguide optically connected to the laser diode and an output waveguide connected to the input waveguide, and at least some of light propagating in at least one of the input waveguide and the output waveguide is applied to the magnetic element.

Abstract: The invention refers to an optical fiber coupling device for ensuring contamination-free coupling and uncoupling of an optical fiber to a further optical component. The optical fiber coupling device comprises a lid mechanism for opening and closing an axial channel of the optical fiber coupling device. The lid mechanism comprises a driver element and a lid element . The driver element is arranged on an exterior side of a main coupling structure of the device and is movable between a first and a second position. The lid element arranged in an interior of the main coupling structure and is movable between a closed position, in which the lid element closes the axial channel, and an open position, in which the lid element exposes the axial channel. The lid element is magnetically coupled to the driver element. The invention further refers to a laser module comprising the optical fiber coupling device.

Abstract: An apparatus includes a substrate that includes one or more routing layers, and an optical module coupled to the substrate. The optical module includes a photonic integrated circuit (PIC) and electronic integrated circuit (EIC), wherein the photonic integrated circuit is at least partially embedded within the substrate. The apparatus further includes a fiber optic coupler coupled to at least one of the substrate or PIC, wherein the PIC is configured to transmit or receive an optical signal via the fiber optic coupler.

Abstract: The invention refers to an optical fiber coupling device comprising a protection mechanism comprising a deformable element configured for deforming to receive therethrough an optical fiber connector, when the optical fiber connector is coupled to a coupling mechanism of the optical fiber coupling device, such that the deformable element surrounds the optical fiber connector and covers a portion of a cross-section of an axial channel of the optical fiber coupling device around the optical fiber connector. The invention further refers to an optical module for laser-processing a workpiece comprising such an optical fiber coupling device.

Abstract: Modules for spliced cable connections, including a splice platform, splice trays, or splice areas configured for positioning within an enclosure, the platform, trays, or areas providing for splices between cables such that any splice between two cables is physically separated from any other splice between two cables.

Abstract: An optical fiber cassette structurally configured to enhance fiber management in an optical fiber management system includes: a first cassette portion; and a second cassette portion structurally configured to be removably coupled with the first cassette portion. The second cassette portion is structurally configured to be coupled with the first cassette portion in different orientations; the first cassette portion is structurally configured to be coupled with an alternate second cassette portion that is structurally configured to be removably coupled with the first cassette portion; and the first cassette portion is structurally configured to alternatively and removably receive the second cassette portion and the alternate second cassette portion in a selected orientation such that the first cassette portion, the second cassette portion, and the alternate second cassette portion provide a modular system that permits customization of the cassette so as to enhance optical fiber cable connection and management.

Abstract: The present disclosure relates generally to fiber management trays that have features such as cable management structures positioned on the tray in such a way that its bend radius does not fall below a minimum bend radius of fiber. A bend radius limiter is positioned adjacent a cable entry region, where the bend radius limiter includes a raised support member elevated with respect to a base such that the bend radius limiter is offset upwardly from the base to define a cable routing pathway beneath the raised support member from the cable entry region to a fiber loop-storage region. The base can include adapters in a group that is asymmetrically positioned relative to a longitudinal axis of the tray.

Abstract: A communications panel includes a chassis receiving one or more tray arrangements that each support one or more cassettes. Each cassette carries a plurality of ports at which connections are made between front and rear plug connectors. Each tray arrangement includes guides along which the cassettes slidably mount. The guides and cassettes are configured to enable cassettes of various size to mount to the same tray without reconfiguring the guides.

Abstract: Fiber management organizer assemblies of telecommunications closures. The assemblies include a basket for holding portions of optical fibers and a fiber management tray support structure that pivotally supports fiber management trays. A fiber retainer can be selectively mounted at any of a plurality of mounting locations defined by the tray support structure or another structure based on specific fiber management requirements for a given organizer.

Abstract: An optical cable includes a main body and a termination segment extending from an end of the main body. The main body includes middle portions of optical fibers. The termination segment includes end portions of the optical fibers and multi-fiber connectors attached to the end portions of the optical fibers. The multi-fiber connectors are staggered along a length of the termination segment.

Abstract: A method of connecting an optical element to a mount, the method including attaching a connector to an optical element with a first solder and heating the first solder with an ultrasonic heater to form a first soldering bond between the connector and the optical element, aligning the optical element within an inner opening of a mount, and attaching the connector to the mount with a second bond, wherein the first soldering bond is a polymer-free bond.

Abstract: The present invention relates to an aperture unit having an optical axis. The aperture unit includes a fixed portion, a guiding element, a first blade and a driving assembly. The guiding element is movably connected to the fixed portion, and the first blade is movably connected to the guiding element and the fixed portion. The driving assembly is disposed on the guiding element for driving the guiding element to move relative to the fixed portion in a first moving dimension. When the guiding element moves relative to the fixed portion in the first moving dimension, the first blade is driven by the guiding element to move relative to the fixed portion in a second moving dimension, and the first moving dimension and the second moving dimension are different.

Abstract: The present invention relates to a camera module, and the present invention may comprise: a lens; a heating layer positioned on the lens so as to generate heat when power is supplied thereto; and a heating wire, which is positioned on the surface of the lens or of the heating layer, which generates heat when a current is supplied thereto from an external power supply, and which is electrically connected to the heating layer. The present invention comprises a heating wire, besides the heating layer that comprises a conductive material, and thus can reduce the time taken to supply a heating body with a current, and the reduced heating time accordingly enables rapid heating.