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508 results about "Waveguide array" patented technology

Optical off-chip interconnects in multichannel planar waveguide devices

The multichannel waveguide device includes an array of waveguides located in a plane. Each waveguide channel has a redirecting element for redirecting a guided wave out of said plane, or vice versa. The redirecting elements are staggered in the direction of the waveguides so as to transform a one-dimensional array of in-plane waves into a two-dimensional array of out-of-plane waves, or vice versa.
Owner:NAT RES COUNCIL OF CANADA

Molded waveguides

Chemically or biochemically active agents or other species are patterned on a substrate surface by providing a micromold having a contoured surface and forming, on a substrate surface, a chemically or biochemically active agent or fluid precursor of a structure. A chemically or biochemically active agent or fluid precursor also can be transferred from indentations in an applicator to a substrate surface. The substrate surface can be planar or non-planar. Fluid precursors of polymeric structures, inorganic ceramics and salts, and the like can be used to form patterned polymeric articles, inorganic salts and ceramics, reactive ion etch masks, etc. at the surface. The articles can be formed in a pattern including a portion having a lateral dimension of less than about 1 millimeter or smaller. The indentation pattern of the applicator can be used to transfer separate, distinct chemically or biochemically active agents or fluid precursors to separate, isolated regions of a substrate surface. Waveguide arrays, combinatorial chemical or biochemical libraris, etc. can be made. Differences in refractive index of waveguide and cladding can be created by subjecting the waveguide and cladding, made of indentical prepolymeric material, to different polymerization or cross-linking conditions. Interferometers are defined by coupling arrays of waveguides, where coupling can be controlled by altering the difference in refractive index between cladding and waveguide at any desired location of the array. Alteration and refractive index can be created photochemically, chemically, or the like. Sensors also are disclosed, including biochemical sensors.
Owner:PRESIDENT & FELLOWS OF HARVARD COLLEGE

Connection between a waveguide array and a fiber array

In a connection between an optical fiber or optical fiber array and an integrated optical waveguide or integrated optical waveguide array mounted or fabricated on a grooved substrate, an end face of an optical fiber array has a first facet and a second facet. The first facet has an inclination angle substantially equal to the inclination angle of an end wall of the substrate groove; the second facet has an inclination angle substantially equal to the inclination angle of the end face of the integrated optical waveguide. When the optical fiber array is mounted on the grooved substrate, each of the fibers rests in one of the substrate grooves. The first facet of each optical fiber end face is aligned with the end wall of the groove in which it rests, and the second facet is aligned with the end face of the integrated optical waveguide.
Owner:HO SENG TIONG

VCSEL Sourced Touch Screen Sensor Systems

Touch screen sensor systems that incorporate VCSELs or VCSEL arrays to provide illumination beams for sensing the position of objects such as a finger or stylus in a two dimensional space is provided. Normally the touch sensor is used with a display screen so that objects in the display screen are identified by positioning a finger or stylus at the object's position. The invention describes improved illumination methods using VCSELs that realize higher resolution in position sensing. VCSELs can also be integrated with detectors on a common substrate which provides both illumination and detection functions for the touch sensor system. Different methods to suitably couple light from VCSEL arrays directly, or through guided light paths such as fibers and waveguide arrays are provided to configure a touch sensor in different applications.
Owner:PRINCETON OPTRONICS

Process for manufacturing high gain dual-linear polarization or dual-circle polarization waveguide array antennas

The invention publishes a wave guide array antennas manufacture method of high gain crewel polarized or the double circular polarized, which relates to a wave guide array antennas manufacture technique in the correspondence broadcast and measure-control domain. The invention has designed the radiation level, the horizontal polarization or the circular polarization feed wave guide level, the perpendicular polarization feed wave guide level, the perpendicular polarization feed wave guide lap, the feed way of using the square or the circular waveguide resonant cavity, has solved the receive and launch of the double polarized electromagnetism signal; The horizontal polarization uses the coupling feed way and the perpendicular polarization uses the direct feed way, completes the separation of the two polarized components, simultaneously may realizes the double circular polarized work. The invention has the double polarized radiation, the high feed efficiency, compact structure, low processing cost and so on merits, is specially suitable for the manufacture of each kind of satellite communication or single control station antenna which works in the double thread polarization or double circular polarized application situations.
Owner:NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP

Integrated structure of array waveguide grating and optical fiber array and manufacture method thereof

The structure comprises the array of the wave-guide grating as well as the input and output optical fiber array, which is aimed at and coupled to the array of the input and output wave-guide in the array of the wave-guide grating. The array of the wave-guide grating and the input and output optical fiber array are integrated on the same silicon substrate. The self-alignment method is adopted in the invention to carry out the end surface coupling between the input and output wave-guide in the array of the wave-guide grating and the optical fiber array. The optical fiber array is prepared by using the adhesive agent to bond the array of the V or U shaped groove on the substrate, the upper cover piece and the monomode fiber with multiple cores.
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI

Wave shaping sound chamber

InactiveUS20020014368A1Suitable degree of flatnessCurvature can be modifiedMicrophonesLoudspeakersThroatWavefront
A loudspeaker system containing wave-shaping sound chambers with approximately rectangular inlets and outlets of substantially the same size that are used to flatten or control the curvature of the acoustic wavefronts contained within system waveguides. Control of the degree of curvature of the wavefront enables the development of a wide variety of multi-waveguide arrays. The sound chambers are placed between a waveguides and a flattened conical horns of secondary waveguides. The sound chambers transform the curvature of the typical fan shaped wavefront that results from a conical horn throat into a wavefront that approximates a planar or curved rectangular ribbon of sound.
Owner:ADAMSON ALAN BROCK

Active optical phase conjugating method and apparatus

InactiveCN1932565ARealize automatic and precise adjustmentSimple structureCoupling light guidesWaveguideWaveguide array
The invention relates to the active optics phase conjugate method and the imaging device, the optical switch. It constructs the mode separation / integration convertor by the optical waveguide array which is set together at one end, the optics field couples with each other; it is set separately in the other end. It leads the optical wave into the separating optical waveguide by the separation / integration convertor, then to achieve the active optics phase conjugate by adjusting the phase and the swing. It can solves the imaging problem in many limit condition such as big size, high quality, super quick focal variation, long distance and so on. So it can be used in the field of the computer-human conversation, the robot optics, the integrate circuit photoetching, information storage, the military affairs, the energy source, the biology and the light communication network.
Owner:李志扬

Channeling fluidic waveguide surfaces and tubes

Waveguide or flow guide surfaces can improve the efficiency of fluid flow through tubes or over surfaces. When incorporated in a tube, the waveguides improve flow and function as sound absorbers making them useful in engine mufflers, firearm silencer / suppressors and jet engine exhaust attenuators. On surfaces, the waveguides can reduce fluid drag and find use on projectiles (e.g., bullets), airfoils for aircraft, and land borne vehicles. The waveguide array in either a tubular chamber or on a surface comprises a plurality of successive wave-like undulations inclined generally in the direction of flow and when employed in tubes extending inwardly to permit an unobstructed path for the fluid gas from entry to exit. The waves define annular wave cavities between their successive inwardly extending edges and the wall of the chamber with each cavity having a cavity mouth open to the unobstructed path. The waveguides are sized and spaced so that gas vortices are created within the cavities when gas flow occurs which vortices create a fluid boundary layer that assists the gas flow.
Owner:PARAFLUIDICS

Waveguide grating-based wavelength selective switch actuated by micro-electromechanical system

The present invention is a wavelength-selective optical switching system. The switching system includes an input waveguide designated as waveguide WG(0) for receiving a multiplexed optical signal comprising optical signals transmitted over a plurality of wavelength channels represented by λ1, λ2, λ3, , λN, where N is a positive integer wherein the input waveguide extending over a first direction. The switching system further includes a two dimensional waveguide array comprising a plurality of first direction waveguides WG(i), i=1, 2, 3, , M extending over the first direction substantially parallel to the input waveguide WG(0) where M is a positive integer and a plurality of second direction waveguides WG′(j), j=1, 2, 3, N, extending over a second direction substantially perpendicular to the first direction and intersecting with the input waveguide and each of the first direction waveguide WG(i), i=0, 1, 2, 3, ,M, thus forming (M+1)×N intersections. The switching system further includes a plurality of wavelength selective grating-based switches SW(i, j) where i=0, 1, 2, 3, , M and j=1, 2, 3, , N, each disposed on one of the (M+1)×N intersections for selectively transmitting an optical signal of wavelength λj into a waveguide WG′(j) and for selectively transmitting an optical signal of a predefined combination of wavelengths into at least one of the waveguide WG(i) for i=1, 2, 3, M.
Owner:OPLUN

Broadband dual circularly polarized planar waveguide array antenna

The invention belongs to the field of design and manufacturing of millimeter wave antennas and provides a broadband dual circularly polarized planar waveguide array antenna. The antenna comprises a radiation aperture, a resonant cavity, a feed square waveguide, a circular polarizer, a dual polarization feed network and a standard waveguide interface which are sequentially stacked from top to bottom, wherein the radiation aperture consists of multiple 2*2 atomic arrays arranged in an array; the resonant cavity consists of a square ridge waveguide resonant cavity, a first square waveguide resonant cavity and a second square waveguide resonant cavity which are sequentially stacked from top to bottom; the circular polarizer is formed by inserting a stepped metal membrane into the square waveguide in a center loading manner; the dual polarization feed network consists of a left-hand circular polarization feed network and a right-hand circular polarization feed network; the standard waveguide interface comprises two output ports, namely, a left-hand circular polarization interface and a right-hand circular polarization interface. The broadband dual circularly polarized planar waveguide array antenna with high gain and efficiency is realized.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Active optical phased array photon integration chip and manufacturing method thereof

ActiveCN106410607AImprove frequency control abilityStable Injection LockSemiconductor laser arrangementsLaser output parameters controlLaser arrayOptoelectronics
The invention discloses an active optical phased array photon integration chip and a manufacturing method thereof. The chip comprises a coherent laser array, an optical phase modulator array, a transitional waveguide array and a light field radiation array, wherein the coherent laser array is a master-slave laser realized through a same material and a same technology; through a unidirectional injection locking mode, a plurality of slave lasers possess a same frequency and good coherence of a fixed phase; the optical phase modulator array controls phase delay of each optical phase modulator in the plurality of optical phase modulators to light through an electric signal modulation mode; and the transitional waveguide array and the light field radiation array are used for adjusting wave beams and emission positions of coherent beams which are emitted from different lasers, pass through different optical phase modulators and possess different optical phase delays and determining a coherent superposed light beam emitting direction according to differences of the phase delays. The integration chip can be integrated on a same substrate. Total power of output light is formed by coherent superposition of slave lasers. And the chip possesses advantages of chip integration and high emitting power.
Owner:TSINGHUA UNIV

Lensed fiber array for sub-micron optical lithography patterning

In accordance with various embodiments, there is an exposure system for writing a pattern on a photosensitive material. The exposure system can include a waveguide array and a light modulator. The waveguide array can include a plurality of optical fibers that focuses light on the radiation sensitive material. The light modulator can modulate the light coupled into the plurality of optical fibers. Exemplary exposure systems can reduce aberrations due to coma and distortion, and provide improved alignment.
Owner:3M INNOVATIVE PROPERTIES CO

Dual polarization transmit-receive waveguide array antenna

InactiveCN107871935AWorking bandwidthRealization of shared sending and receivingPolarised antenna unit combinationsSpace fed arraysBroadbandOptoelectronics
The invention relates to the field of communication and measurement control and especially relates to a dual polarization transmit-receive waveguide array antenna. The polarization transmit-receive waveguide array antenna includes N broadband dual polarization antenna sub arrays and a polarization adjusting device. Each broadband dual polarization antenna sub array includes a dual polarization opening waveguide array radiation layer and a network feed layer, wherein the dual polarization opening waveguide array radiation layer is arranged above the network feed layer and the polarization adjusting device is arranged below the network feed layer. By adopting the waveguide grid structure for feeding a plate satellite antenna, the working bandwidth of the plate satellite antenna is enlarged,share of transmit-receive of antenna opening and face is realized, radiation grating lobe is reduced and an interface is provided for automatic adjustment of electromagnetic wave polarization direction.
Owner:NANJING CLEANWAVE COMM TECH

Apparatus for thermal compensation of an arrayed waveguide grating

An arrayed waveguide grating including a waveguide array extending between two free propagation regions is disclosed. One free propagation region is coupled to an input waveguide, and the other free propagation region is coupled to output waveguides. In an example, the input-side free propagation region has two sections that are moveable relative to one another. Movement is achieved by using, for example, a thermally responsive actuator that moves the input waveguide a desired distance to compensate for a temperature change. An arm formed of a low thermal expansion coefficient metal may be used as a thermally responsive actuator moving a substrate. In another example, both the input side and the output side free propagation regions have sections moveable relative to one another and, therefore, less movement is required to correct for thermal variations. An NxN arrayed waveguide grating may also be formed.
Owner:INTEL CORP

Conformal low-sidelobe waveguide slotted array antenna

The invention discloses a conformal low-sidelobe waveguide slotted array antenna. The antenna is characterized by comprising a radiation rectangular waveguide array, a feed rectangular waveguide and a coaxial feed unit; the wide side of the radiation rectangular waveguide array is vertical to the wide side of the feed rectangular waveguide; bias radiation slots are formed in the wide side of the radiation rectangular waveguide array in the top, and inclined coupling slots are formed in the wide side of the feed rectangular waveguide; and the end portion of the feed rectangular waveguide is provided with a coaxial feed interface. Feed includes two levels; in the first level, coaxial cables in the bottom feed the feed rectangular waveguide in the middle; and in the second level, the feed rectangular wave uses the inclined coupling slots thereof to feed the radiation rectangular waveguide array, and the bias radiation slots serve as an antenna radiation array plane to complete antenna radiation. According to index requirements for the anti-interference capability of antennas and sensitivity of micro signals, the antennas characterized by being easily conformal, low in sidelobe, high in gain, easy to design, compact in structure and the like are designed.
Owner:HEFEI UNIV OF TECH

Optoelectronic integrated circuit board and communications device using the same

In the optical connection between multi-layered optical waveguides and photoelectric converting elements or optical waveguide array connectors formed on a substrate, the optical coupling efficiency is to be prevented from degrading due to deviation of the optical axis positions between optical elements and the optical waveguide layers that is caused by a radiation due to a beam expansion or by a deviation of positioning layers in producing the optical waveguides. There are stacked, on a substrate, optical waveguide layers, each of which comprises a clad layer and a core having a higher refractive index than the clad layer, and optical elements formed on the uppermost optical waveguide layer. The optical elements are positioned such that they correspond to the optical path conversion mirrors of the cores of the underlaying optical waveguide layer. The light transmission / reception between the optical elements and the optical path conversion mirrors of the cores of the underlaying optical waveguide layer is performed via the cores of overlying optical waveguide layer.
Owner:HITACHI CHEM CO LTD

Electrical-optical package with capacitor DC shunts and associated methods

An optical-electrical (OE) package includes a substrate electrically coupled to a motherboard via one or more capacitor DC shunts (CDCSs). In one embodiment, the substrate includes an IC chip electrically coupled to a first set of contact-receiving members on an upper surface of the substrate. The substrate also includes a light-emitting package and a photodetector package electrically coupled to respective second and third sets of contact-receiving members on the substrate lower surface. The substrate has internal wiring that electrically interconnects the IC chip, the light-emitting package and the photodetector array. The light-emitting package and the photodetector array are optically coupled to respective first and second waveguide arrays formed in or on the motherboard. The CDCSs mitigate noise generated by the IC chip by serving as a local current source.
Owner:INTEL CORP

Longitudinal Pulse Wave Array

An acoustic pulse array is described. The pulse array can include a plane wave pulse generator having a first side from which a first wave emanates, and a second side from which a second wave emanates. A first waveguide array can be attached to the generator on the first side of the generator, and a second waveguide array can be attached to a second side of the generator. One or more of the waveguides can be attached to the generator so as to orient the waveguide to transmit wave pulses in a direction that is substantially perpendicular to the generator.
Owner:QUALCOMM INC

Apparatus for thermal compensation of an arrayed waveguide grating

An arrayed waveguide grating including a waveguide array extending between two free propagation regions is disclosed. One free propagation region is coupled to an input waveguide, and the other free propagation region is coupled to output waveguides. In an example, the input-side free propagation region has two sections that are moveable relative to one another. Movement is achieved by using, for example, a thermally responsive actuator that moves the input waveguide a desired distance to compensate for a temperature change. An arm formed of a low thermal expansion coefficient metal may be used as a thermally responsive actuator moving a substrate. In another example, both the input side and the output side free propagation regions have sections moveable relative to one another and, therefore, less movement is required to correct for thermal variations. An N×N arrayed waveguide grating may also be formed.
Owner:INTEL CORP

Receiver on a photonic IC

An optical receiver includes a first substrate including a demultiplexer and a first optical waveguide array. An input of the demultiplexer is configured to receive a wavelength division multiplexed optical input signal having a plurality of channels. Each of the plurality of channels corresponds to one of a plurality of wavelengths. Each of the plurality of outputs is configured to supply a corresponding one of the plurality of channels. The first optical waveguide array has a plurality of inputs. Each of the inputs of the first optical waveguide array is configured to receive a corresponding one of the plurality of channels. A second substrate is in signal communication with the first substrate and includes an optical detector array. The optical detector array has a plurality of inputs, each of which is configured to receive a corresponding one of the plurality of channels and generate an electrical signal in response thereto.
Owner:INFINERA CORP

Single-line multi-row equivalent negative refractive index flat lens

PendingCN107807417ARealize Holographic ImageLarge field of viewLensRefractive indexWaveguide
The invention provides a single-line multi-row equivalent negative refractive index flat lens, which comprises a pair of glass windows with two optical surfaces and two groups of light waveguide arrays positioned between the two glass windows, wherein the optical waveguide array is formed by single-line multi-row light waveguides being in 45-degree inclined arrangement and having the rectangular cross section; the waveguide directions of the mutually corresponding parts of the two groups of light waveguide arrays are vertical to each other. Through the reconstructed plane lens of the special precise microscopic structure, the single-line multi-row light waveguides with the rectangular cross section are used for forming an array structure; two-dimensional or three-dimensional light sourcesdirectly form solid images in the air to realize the real holographic image.
Owner:ANHUI EASPEED TECHNOLOGY CO LTD

Efficient waveguide arrays with nearly perfect element patterns

An optical interconnection apparatus including waveguide arrays such as waveguide lenses, waveguide gratings and star couplers, has improved efficiency realized by using a periodic array including in each period a combination of two radial waveguides. The array is formed with angular period α between an input circle and an output circle and it includes an input section, connected to the input circle, and an output section connected to the output circle. The input section includes a single waveguide in each period and it is efficiently coupled with minimal loss to the output section, whose waveguides are approximately arranged with period α / 2 in the final region close to the output circle.
Owner:CALLAHAN CELLULAR L L C

Off-axis micro-mirror arrays for optical coupling in polymer waveguides

A micro-mirror array for optical coupling in a waveguide array including, a transparent body having a slanted portion, a sidewall portion, and a bottom portion, the sidewall portion and the bottom portion each respectively facing the slanted portion, and wherein a complementary shape of a conventional form off-axis mirror is arranged on the slanted portion, and a reflective coating on at least a portion of the complementary shape.
Owner:IBM CORP

Polarization-insensitive array waveguide grating wavelength division multiplexing device

The invention discloses a polarization-insensitive array waveguide grating wavelength division multiplexing device which comprises one or multiple input waveguides, an input slab waveguide, multiple array waveguides, an output slab waveguide and one or multiple output waveguide, wherein one end of each of array waveguides is connected with the input slab waveguide, and the other end of each of array waveguides is connected with the output slab waveguide; a forward direction single polarization mode converter is arranged between each input wave guide and the input slab waveguide and a reverse direction single polarization mode converter is arranged between each output waveguide and the output slab waveguide. The polarization-insensitive array waveguide grating wavelength division multiplexing device is simple in structure and convenient to design, and does not need to specially design parts, such as a slab waveguide zone and a waveguide array; and a standard process for making the array waveguide grating is just needed without introducing extra complex processes, and the device is not sensitive to the process deviation. The polarization-insensitive array waveguide grating wavelength division multiplexing device is suitable for N*N array waveguide grating, and is also suitable for the situation of a large amount of channels.
Owner:ZHEJIANG UNIV
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