|| List of recent Waveguide-related patents
| Optical power modulation vital sign detection method and measurement device|
A vital sign measurement device includes a sensor fixation device, a sensor frame, an optical sensing system, and an output unit. The sensor fixation device is adapted to be placed against an anatomical location of a subject.
| Multi-path, multi-magnification, non-confocal fluorescence emission endoscopy apparatus and methods|
An optical scanner, scanner apparatus, or scanner assembly, which may be particularly advantageous for use in a multiphoton microscope, includes a first drivable bending component, a second drivable bending component mounted perpendicularly to the first component, and at least one optical waveguide coupled one or both of the first and second bending components, wherein the at least one optical waveguide provides both a propagation path for a multiphoton excitation radiation delivery between a light source and a target and a multiphoton-induced emission radiation delivery between the target and a detector. A grin relay lens.
| Method for locating a transcutaneous sensor on skin|
A method to aid in diagnosing at least one of infiltration and extravasation in animalia tissue includes moving a light sensor over an epidermis of the animalia tissue and evaluating a light signal while moving the light sensor. The light sensor includes first and second waveguides.
| Methods and apparatus related to an optical fiber member having a removable cover|
An apparatus may include a waveguide. The waveguide may include a distal end surface which may be substantially normal to a centerline of a distal end portion of the waveguide.
| Animal stunning|
Described are animal stunning apparatus and methods for inducing rapid unconsciousness and insensibility. The apparatus includes a stunning station in which a live subject animal is located in a confined position and an applicator contacts an application point on the live subject animal's head immediately overlying a frontal portion of the animal's brain and couples microwave radiation to the head.
| Hybrid laser including anti-resonant waveguides|
Described are embodiments of apparatuses and systems including a hybrid laser including anti-resonant waveguides, and methods for making such apparatuses and systems. A hybrid laser apparatus may include a first semiconductor region including an active region of one or more layers of semiconductor materials from group iii, group iv, or group v semiconductor, and a second semiconductor region coupled with the first semiconductor region and having an optical waveguide, a first trench disposed on a first side of the optical waveguide, and a second trench disposed on a second side, opposite the first side, of the optical waveguide.
| Resilience in an access subnetwork ring|
Embodiments herein include a resilient add-drop module for use in one of multiple access subnetwork nodes forming an access subnetwork ring. The module comprises a dual-arm passive optical filter and a cyclic arrayed waveguide grating (awg).
| Optical-electrical transmission assembly and optical transmission module using the same|
An optical transmission module includes two optical-electrical transmission assemblies and at least two optical waveguides including two fixing ends. Each optical-electrical transmission assembly includes a cmos board, an integrated ic driver chip mounted on the cmos board, an light emitting element array, and at least one photodetector element.
| Optical waveguide directional coupler and method for making same|
An optical waveguide directional coupler includes a base having a planar member and a ridge member and an optical waveguide in the base. The ridge member extends from the planar member and has an upper surface where the optical waveguide exposed.
| Nanomechanical photonic devices|
Devices which operate on gradient optical forces, in particular, nanoscale mechanical devices which are actuable by gradient optical forces. Such a device comprises a waveguide and a dielectric body, with at least a portion of the waveguide separated from the dielectric body at a distance which permits evanescent coupling of an optical mode within the waveguide to the dielectric body.
| Spot size converter and method for making the same|
In order to provide a spot size converter and a method for making the same which enable the optical connection with low loss and are able to reduce the excess loss for the position misalignment in mounting, a spot size converter according to an exemplary aspect of the present invention includes: a substrate on which an optical waveguide including a first core is laminated and which includes a notch; a core reducing part which is formed so that a cross-section area of the first core may gradually decrease toward an end part of the first core in the direction of light propagation; a second core which surrounds the core reducing part and is made of a material whose refractive index is smaller than that of the first core; a peripheral clad which surrounds the second core and is made of a material whose refractive index is smaller than that of the second core; and a lower clad which is formed in a lower part of the second core and includes the peripheral clad; wherein the lower clad is formed in the notch.. .
| Waveguide type optical switch|
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..
| Low loss directional coupling between highly dissimilar optical waveguides for high refractive index integrated photonic circuits|
An optocoupler, an optical interconnect and method of manufacture providing same are provided for coupling an optical signal between a high refractive index waveguide of an integrated circuit and a waveguide external to the integrated circuit. The optocoupler includes a thinned high refractive index waveguide having a thickness configured to exhibit an effective refractive index substantially matching a refractive index of the external waveguide..
| Method and structure providing optical isolation of a waveguide on a silicon-on-insulator substrate|
Disclosed are a method and structure providing a silicon-on-insulator substrate on which photonic devices are formed and in which a core material of a waveguide is optically decoupled from a support substrate by a shallow trench isolation region.. .
| Multiple waveguide imaging structure|
In embodiments of a multiple waveguide imaging structure, an imaging structure includes a first waveguide for see-through viewing of an environment at a first field of view, and includes a second waveguide for see-through viewing of the environment at a second field of view. The first and second waveguides each include a polarizing beam splitter to reflect light that enters at a first polarization orientation angle in the respective first and second waveguides, and the polarizing beam splitters pass through the light that enters at a second polarization orientation angle.
| Semiconductor mach-zehnder modulator and method for manufacturing semiconductor mach-zehnder modulators|
A semiconductor mach-zehnder modulator includes a substrate having a main surface including first, second and third regions sequentially arranged along a direction; a waveguide mesa including first and second waveguide arms provided on the second region, first and second optical couplers provided on the first and third regions, respectively; a first semiconductor protective layer provided on side surfaces of the first and second waveguide arms; a buried layer provided on side surfaces of the waveguide mesa and on the main surface, the buried layer including a material having a dielectric constant lower than that of the first protective layer; and first and second upper electrodes provided on the first and second waveguide arms, respectively. The first and second optical couplers are connected to the first and second waveguide arms.
| Device and method for selecting optical pulses|
The invention discloses a device for selecting pulses comprising an optical waveguide for guiding the optical radiation along an axis; comprising a first electro-optical modulator designed to modulate the optical transparency of the waveguide; comprising a second electro-optical modulator designed to modulate the optical transparency of the waveguide, wherein the first modulator and the second modulator are arranged one after the other on the axis of the waveguide, and further comprising at least one control circuit designed to actuate the first modulator and the second modulator at offset times, and characterized in that a substrate of a semiconductive material is provided, the waveguide and the at least one control circuit are arranged on the substrate.. .
| Laser diodes including substrates having semipolar surface plane orientations and nonpolar cleaved facets|
Laser diodes and methods of fabricating laser diodes are disclosed. A laser diode includes a substrate including (al,in)gan, an n-side cladding layer including (al,in)gan having an n-type conductivity, an n-side waveguide layer including (al,in)gan having an n-type conductivity, an active region, a p-side waveguide layer including (al,in)gan having a p-type conductivity, a p-side cladding layer including (al,in)gan having a p-type conductivity, and a laser cavity formed by cleaved facets.
| Wavelength selective and tunable laser device|
Exemplary embodiments provide wavelength selective and tunable laser devices and a method for tuning the laser devices. An exemplary laser device, which can be operated in a single-wavelength lasing mode at a selectable and tunable lasing wavelength, includes a multi-mode laser, a feedback portion, and a wavelength tuning structure.
| Heat assisted magnetic recording head gimbal assembly and hard disk drive using same|
Provided is a structure of a heat assisted magnetic recording head gimbal assembly that allows common inexpensive te-mode lds to be utilized. The heat assisted magnetic recording head gimbal assembly comprises: a light source unit having a light emitting element mounted on a parabolic solid submount; a heat assisted magnetic recording head comprising a magnetic recording element, a read element, a near field transducer, and a waveguide for guiding light from the light emitting element into the near field transducer; a slider including the heat assisted magnetic recording head and which flies above a disk; and a suspension for supporting the slider.
| Light collimator and lighting unit comprising such light collimator|
The invention provides a light collimator (1) comprising (a) an elongated light waveguide (100) having a waveguide longitudinal axis (101), a waveguide length (wl), a waveguide width (ww) and a waveguide height (wh); the waveguide height (wh) defined by the height between a first waveguide surface (151) and a second waveguide surface (152), the waveguide (100) having an aspect ratio of the waveguide length (wl) and the waveguide width (ww) wl/ww>1; the waveguide comprising a plurality of elongated cavities (110); each cavity (110) comprises a cavity longitudinal axis (111), a cavity length (cl), a cavity width (cw) and a cavity height (ch); each cavity having an aspect ratio of the cavity length (cl) and the cavity width (cw) cl/cw>1, wherein the cavity longitudinal axes (111) of the plurality of cavities (110) are perpendicular to the waveguide longitudinal axis (101); and (b) a diffuse reflective layer (200) adjacent to the second waveguide surface. The invention further provides a lighting unit (2) using such collimator (1)..
| Optical broadband filter and device comprising the same|
A device including a combination of a waveguide and a grating arranged to provide a spectral reflectance. The grating has a plurality of diffractive features in a first region and in a second region such that in the first region, a local average of a length of a period of the diffractive features substantially increases with increasing distance from an origin, and in the second region, the local average of the length of the period of the diffractive features substantially decreases with increasing distance from an origin.
| Waveguide antenna having annular slots|
A slotted waveguide antenna element s provided, which includes at least one conductive surface provided with at least one annular slot, which defines at the central portion thereof a conductive zone and which electrically insulates the zone from the rest of the surface.. .
| Compact multiport waveguide switches|
A waveguide switch based on alternating short and open loads in a waveguide path. In one embodiment, the switch being made up of four waveguides connected by sections of ridge waveguides where simple short-circuit loads can be activated to control the signal paths.
| Waveguide device, communication module and electronic device|
An electronic device includes a central control unit and a waveguide device. The waveguide device includes a communication module having a communication function, and an attachment/detachment unit capable of attaching/detaching a high-frequency signal waveguide so that coupling between the module and the high-frequency signal is possible.
| Low-oxygen atmosphere apparatus|
A low-oxygen atmosphere apparatus including a chamber which houses an object to be processed, microwave generators, and waveguides through which a microwave generated in the microwave generators is transmitted, and further including, in the chamber and/or the waveguides, oxygen-reducing materials to lower the oxygen concentration of the atmosphere in the chamber, which generates heat by the microwave in order to accelerate a reducing reaction of oxygen, thereby lowering the oxygen concentration of the atmosphere in the chamber.. .
| Photon induced enhanced field electron emission collector|
An electromagnetic energy collector and sensor use enhanced fields to emit electrons for energy collection. The collector and sensor collect energy from visible light, infrared radiation and ultraviolet electromagnetic radiation.
|Haptic interface for portable electronic device|
The application includes an apparatus connectable with a portable electronic and/or consumer electronics device that provides haptic information and/or feedback to a user of the portable electronic device. The apparatus may include one or more acousto-haptic transducers that provide at least one of audio and haptic output to a user of the portable electronic device.
|Method for the design of uniform waveguide light extraction|
A system and method are provided for designing a waveguide with uniform light extraction. Due to the complex nature of the calculations required, the method may be enabled as a set of software instructions, stored as a sequence of steps in a non-transitory memory for execution by a processor.
|Substrate for semiconductor package and method of manufacturing thereof|
Disclosed is a substrate for a semiconductor package in which leakage of radiation noise from a gap between a semiconductor element and a mounting substrate can be prevented. The substrate for the semiconductor package includes a coplanar waveguide including a signal and ground electrodes on the mounting substrate, the signal electrode flip-chip connected to the semiconductor element, the ground electrodes arranged on both sides of the signal electrode with intervals therebetween.
|Enhancing uniformity of slab region thickness in optical components|
A method of forming an optical device includes generating a device precursor having a layer of a light-transmitting medium on a base. The method also includes forming an etch stop on the layer of light-transmitting medium.
|Test element, test kit, test device, and test method|
According to one embodiment, a test element includes a base, a pair of optical element units, an optical waveguide unit, a detection unit and a holding unit. The base has transparency.
|Multi-target photonic biosensor, and method for manufacturing and preparing same|
A component or device is provided for the detection or the measurement in parallel of one or more specific types of biological or chemical target products. This component includes a group of nanotubes selected and/or functionalized to interact with the target product, around an optical waveguide.
|Appliance and arrangement for optical signal transmission by means of optical wave-guides|
An appliance for optical signal transmission using optical waveguides in explosion-hazard areas, in particular in underground mining, includes an optical transmitter, having an optical output interface for connection of an optical waveguide transmission path and having a device for limiting the light power. An arrangement for bi-directional optical signal transmission is also provided.
|Optical waveguide having a varying index gradient|
A photoacoustic detection device including a nanophotonic circuit including a first chip on which is formed at least one optical waveguide and in which is formed a set of cavities defining a helmholtz resonator; at least one optical source capable of emitting an optical signal in a given wavelength range, capable of being modulated at an acoustic modulation frequency, this source being attached to the first chip; a second chip forming a cap for said cavities and including acoustic sensors; and electronic circuits for processing the output of the acoustic sensors formed in the first or the second chip. Further, an optical waveguide comprising, on a silicon substrate, a silicon germanium core with a variable germanium concentration along a direction perpendicular to the substrate, said core being covered with a cladding silicon layer..
|Optical printed circuit board|
An optical pcb includes a substrate, conductive traces, a solder resist layer, and a light waveguide. The substrate includes a surface.
|Optical-electrical conversion module and optical transmission connecting assembly using the same|
An optical-electrical conversion module includes a circuit board, a planar optical waveguide formed on the circuit board, two first lenses and two second lenses mounted above the planar optical waveguide, a base plate electrically connected to the circuit board, and an optical signal emitting member and an optical signal receiving member mounted on the base plate. The planar optical waveguide forms two inclined surfaces.
|Optical multiplexing/demultiplexing device|
An optical multiplexing/demultiplexing device comprise a plurality of propagation waveguides comprising an input waveguide capable of receiving input light and an output waveguide outputting light of a given wavelength among the wavelengths included in the input light and resonance waveguide that is an optical waveguide provided between adjoining waveguides and extends in a longitudinal direction in which both the adjoining waveguides extend, wherein the adjoining waveguides are an adjoining pair among the propagation waveguides. The distance between the resonance waveguide and each of the adjoining waveguides of the resonance waveguide and a length in the longitudinal direction of the resonance waveguide are set so as to form a transition part, wherein when a light comprising a transition wavelength set to the transition part passes through the transition part of one of the adjoining waveguides, the light of the transition wavelength component shifts to the other adjoining propagation waveguide..
|Optical printed circuit board with two light waveguide layers optcally coupled to each other|
An optical pcb includes a substrate layer, a first light waveguide layer and a second light waveguide layer. The first light waveguide layer and the second light waveguide layer are positioned on the substrate layer and are optically coupled with each other.
|Ultra-thin waveguide with controlled light extraction|
A system and method are provided for using bubble structures to control the extraction of light from a waveguide top surface. The method determines a maximum angle (α) of light propagation through a waveguide medium relative to a first horizontal direction parallel to a waveguide top surface.
|Optical semiconductor and optical module|
Provided are an optical semiconductor which includes a pyroelectric first substrate having an optical waveguide formed in a surface thereof and a second substrate connected to the first substrate via an insulating adhesive layer and which inhibits a pyroelectric effect caused therein, and an optical module. The optical semiconductor includes: a first substrate which has an electro-optic effect and is pyroelectric, the first substrate having an optical waveguide formed in an upper surface thereof; a second substrate connected the first substrate via an insulating adhesive layer; a first conductive film formed on a lower surface of the first substrate; and a second conductive film formed on at least one side surface of the first substrate and the second substrate, in which the first conductive film is electrically connected to the second conductive film..
|Photocarrier-injecting variable optical attenuator|
A photocarrier-injecting variable optical attenuator that operates by injecting photocarriers into a light transmitting waveguide from a second, injection light source. The light transmitting waveguide may be defined by a ridge extending from a slab of a light transmitting medium.
|Single-layer full-mesh, point-to-point network|
An mcm may include a single optical routing layer that provides point-to-point connectivity among n chips in the mcm, such as all-to-all connectivity or full-mesh point-to-point connectivity. Moreover, the optical routing layer may include: n optical waveguides optically coupled to the n chips and a cyclic de-multiplexer, optically coupled to the n optical waveguides, that routes optical signals among the n optical waveguides without optical-waveguide crossing in the optical routing layer.
|Optical waveguide attenuator for a polarized light source|
An optical apparatus comprises: a waveguide substrate, optical cladding formed on the substrate; a waveguide core formed within the cladding, an optically absorptive layer formed within the cladding, and a linearly polarized light source. The waveguide core includes an attenuating segment thereof, and the absorptive layer is formed near the attenuating segment of the core.
|Portable audio system having waveguide structure|
An audio system includes a housing and an acoustic exit that exits the housing, and has a configuration that facilitates the grasping of the housing with a plurality of fingers from a single human hand. The acoustic exit is located adjacent an exterior surface of the housing such that the shape of the exit together with the exterior surface facilitates grasping of the housing with a plurality of fingers and the thumb from the single human hand and the acoustic exit exits a back surface of the housing such that the plurality of fingers can be inserted into the exit while the thumb of the same hand can rest on at least one of the top surface and the front surface of the housing..