Patents Examined by Mary El-Shammaa
  • Patent number: 11963293
    Abstract: A method for manufacturing a circuit board structure with a waveguide is provided. The method includes: providing a first substrate unit, a second substrate unit, a third substrate unit, and two adhesive layers, the first substrate unit including a first dielectric layer and a first conductive layer, the first conductive layer including a first shielding area and two first artificial magnetic conductor areas disposed on two sides of the first shielding area; the second substrate unit including a second dielectric layer and a second conductive layer, the second conductive layer including a second shielding area; the third substrate unit defining a first slot, and the adhesive layer defining a second slot; stacking the first substrate unit, one of the adhesive layers, the third substrate unit, another one of the adhesive layers, and the second substrate unit in that order; pressing the intermediate body.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: April 16, 2024
    Inventor: Chien-Cheng Lee
  • Patent number: 11953673
    Abstract: An optical coupling having a coupling part and a mating coupling part which are detachably connected to one another is provided, a connection element being arranged on the coupling part and a fitting mating connection element being arranged on the mating coupling part. These connection elements together form a common optical channel, and the mating connection element is arranged with play in the mating coupling part and without play in the coupling part.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: April 9, 2024
    Assignee: Schölly Fiberoptic GmbH
    Inventors: Wolfgang Meder, Martin Hercher
  • Patent number: 11947110
    Abstract: Systems and methods of dispersion compensation in an optical device are disclosed. A holographic optical element may include a set of different holograms in a grating medium (704). Each hologram in the set may have a corresponding grating vector (708, 710, 712) with a grating frequency and direction. The directions of the grating vectors may vary as a function of the grating frequency. Different holograms in the set may diffract light in a particular direction so that the light emerges from a boundary of the grating medium in a single given direction regardless of wavelength. A prism (722) is used to couple light into the grating medium. The prism is formed using materials having dispersion properties that are similar to the dispersion properties of the grating material but not indentical. The prism may have an input face that receives perpendicular input light. The prism may include multiple portions having different refractive indices.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: April 2, 2024
    Assignee: Akonia Holographics LLC
    Inventors: Jonathan Pfeiffer, Adam Urness, Friso Schlottau, Mark R. Ayres
  • Patent number: 11932567
    Abstract: A system and method for fabricating an optical element. The method includes welding an array of fibers to the optical element, measuring an angle error and a position error of each fiber, calculating a correction for each fiber for the angle error and the position error and correcting the angle and position of each fiber using the calculated corrections.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: March 19, 2024
    Inventors: Gregory D. Goodno, Joshua E. Rothenberg, James G. Ho, Dustin Guenther
  • Patent number: 11914415
    Abstract: An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can apply an arbitrary weighting matrix multiplication to an array of input optical signals. Nonlinear activation is realized by an optical nonlinearity unit, which can be based on nonlinear optical effects, such as saturable absorption. These calculations are implemented optically, thereby resulting in high calculation speeds and low power consumption in the optical neural network.
    Type: Grant
    Filed: May 4, 2022
    Date of Patent: February 27, 2024
    Assignee: Massachusetts Institute of Technology
    Inventors: Jacques Johannes Carolan, Mihika Prabhu, Scott A. Skirlo, Yichen Shen, Marin Soljacic, Dirk Englund, Nicholas C. Harris
  • Patent number: 11906780
    Abstract: An asymmetric adiabatic polarization beam splitter integrated with a waveband filtering splitter unit and a polarization filtering splitter unit is capable of being packaged to form an integrated optical waveguide filtering chip. The waveband filtering splitter unit utilizes an adiabatic optical waveguide structure and stimulated Raman adiabatic passage on an optical waveguide to split the energy of light sources of different bands to different spaces when the light energy is performed with an adiabatic process. The polarization filtering splitter unit utilizes the two orthogonal polarization modes of an optical waveguide with birefringence to achieve a polarization-dependent mode splitting effect based on an adiabatic theory. The asymmetric adiabatic polarization beam splitter realizes the characteristics of integration and high process tolerance, and improves the mass production feasibility.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: February 20, 2024
    Assignee: National Central University
    Inventors: Hung-Pin Chung, Kuang-Hsu Huang, Tsung-Yeh Ho, I-Ting Chung, Yen-Hung Chen
  • Patent number: 11885747
    Abstract: An optical sensor may include a housing, a printed circuit board, an optical emitter, and an optical detector. The housing can define a channel configured to receive a transparent tubing line through which fluid can flow during operation. The housing can have multiple optical pathways, including a primary optical pathway transecting the channel, a light emission optical pathway, and a light detection optical pathway. The optical emitter and optical detector can each be mounted on the printed circuit board. Further, the housing may be positioned on the printed circuit board with the optical emitter aligned to emit light into the light emission optical pathway and the optical detector aligned to receive light from the light detection optical pathway.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: January 30, 2024
    Assignee: Ecolab USA Inc.
    Inventors: Brandon Matthew Davis, Stephen J. Hinterlong, David Alan Ambrose
  • Patent number: 11880036
    Abstract: A waveguide head-up display (HUD) includes a waveguide that includes a lower surface and an upper surface and is configured to receive an input and project, based on the input, at least one image from the upper surface and into an eyebox, and a prism arranged at least one of on and above the waveguide. The prism includes a lower surface facing the waveguide and configured to receive the at least one image and an upper surface opposite the lower surface configured to project the at least one image received via the lower surface of the prism. The upper surface of the prism is angled relative to the upper surface of the waveguide such that a first normal of the upper surface of the prism is different from a second normal of the upper surface of the waveguide.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: January 23, 2024
    Inventors: Thomas A. Seder, Kai-Han Chang
  • Patent number: 11860502
    Abstract: Provided is an electro-optical modulator, particularly a double layer graphene modulator having an optimized arrangement to provide both a large optical bandwidth and a high optical transmission for light travelling through an optical waveguide of the modulator, wherein at least one of a top and a bottom graphene sheets extends along a X-direction: above part of the width of the optical waveguide, wherein that part ranges from 50% to 100% of the width of the optical waveguide; or completely above the whole width of the optical waveguide, and beyond through a respective further projecting portion with a length, along the X direction, of up to 25% of the optical waveguide width. Provided is also a method for obtaining the electro-optical modulator of the invention.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: January 2, 2024
    Inventors: Frank Koppens, Bernat Terrés, Hitesh Agarwal
  • Patent number: 11852817
    Abstract: A waveguide can include a first portion configured to confine an input beam within the structure of the waveguide, and a second portion configured to collimate the beam to be projected through a combiner, to produce an image in infinity. A method of constructing an optical system for a head-up-display can include shaping a first waveguide element such that a first portion of the waveguide is configured to confine an input beam within the structure of the waveguide, and a second portion is configured to collimate the input beam. The method can include coupling the waveguide to a combiner.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: December 26, 2023
    Inventors: Wesley Burkhard, Kangbin Chua, Alexander Naumov, Robert Waldo, Ninad Patnekar, Ranjit Pradhan, Andrew Kostrzewski
  • Patent number: 11852883
    Abstract: A telecommunications closure (10) comprising cables (46), a cover (20), an interior frame (30), the frame (30) holding telecommunications equipment (32), and a seal block (40) sealing the cover (20) closed relative to one or more cables (46) which enter the closure (10). The frame (30) defines a plurality of clamp assembly holders (36). A plurality of clamp assemblies (60, 160, 260) are provided, each clamp assembly (60, 160, 260) for holding a cable including a jacket (48), interior optical fibers (52), and at least one interior strength member (50). Each clamp assembly (60, 160, 260) includes a jacket clamp assembly (64, 164, 264) moveable relative to the frame, and including a wrap (68) which mounts around the jacket, and a strength member clamp assembly (80, 180, 280) moveable relative to the frame. The wrap (68) wraps around the jacket (48) and is adjustable for different jacket diameters.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: December 26, 2023
    Assignee: CommScope Connectivity Belgium BVBA
    Inventors: Mohamed Aznag, Emilie De Groe, Dirk Kempeneers, Eric Marcel M. Keustermans
  • Patent number: 11844494
    Abstract: A laser system includes a first cavity to output a laser light along a first path, a first mirror to receive the laser light from the first cavity, and redirect the laser light along a second path that is different than the first path, a beam splitter removably located at a first position on the second path, a beam combiner removably located at a second position on the second path, and an alignment device having first and second alignment features. The first and second alignment features occupy the first position and the second position, respectively, on the second path, when the beam splitter and the beam combiner are removed from the first position and the second position.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: December 19, 2023
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Honggang Yu, Baocheng Yang
  • Patent number: 11835735
    Abstract: A coupling method of an optical module is provided. A circuit board with a light emitting element emitting an output light and an output lens are provided. The light emitting element is covered by the output lens. The output lens is connected to an output meter. The output lens and the circuit board are moved relatively. An intensity of the output light is measured by the output meter. An output qualified region is defined based on a region where the output lens is located when the intensity of the output light is greater than an output requirement. The aforementioned steps are repeated for a predetermined number of times. The output lens and the circuit board are moved relatively in an intersection area of the output qualified regions. The output lens is fixed on the circuit board when the intensity of the output light is greater than the output requirement.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: December 5, 2023
    Inventors: Chi-Hsien Sun, Ching-Hung Liu
  • Patent number: 11817670
    Abstract: A pulse configurable laser unit is an environmentally stable, mechanically robust, and maintenance-free ultrafast laser source for low-energy industrial, medical and analytical applications. The key features of the laser unit are a reliable, self-starting fiber oscillator and an integrated programmable pulse shaper. The combination of these components allows taking full advantage of the laser's broad bandwidth ultrashort pulse duration and arbitrary waveform generation via spectral phase manipulation. The source can routinely deliver near-TL, sub-60 fs pulses with megawatt-level peak power. The output pulse dispersion can be tuned to pre-compensate phase distortions down the line as well as to optimize the pulse profile for a specific application.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: November 14, 2023
    Inventors: Andrey Bordenyuk, Dmitry Pestov, Vadim Lozovoy, Igor Samartsev
  • Patent number: 11808985
    Abstract: A waveguide combiner includes an in-coupling area, a waveguide body and an out-coupling area. The in-coupling area is configured to introduce a light beam. The waveguide body is configured to guide the light beam introduced by the in-coupling area. The out-coupling area is configured to output the light beam guided by the waveguide body. The waveguide body includes at least one of a beam-expanding part configured to expand the light beam to a predetermined direction by reflecting the light beam and a beam-folding part configured to change the light beam to a different direction by reflecting the light beam.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: November 7, 2023
    Inventor: Jiun-Yi Lien
  • Patent number: 11805982
    Abstract: Disclosed are an optical fiber probe and a method for manufacturing an optical fiber probe which can reduce astigmatism. The disclosed optical fiber probe comprises: an optical fiber configured to receive light inputted from a light source; a reflection part configured to reflect the inputted light in the direction of a cylindrical surface; and a transparent window comprising an incidence surface and an output surface, the incidence surface coupled to the cylindrical surface of the reflection part, the output surface comprising a curvature thereof different from a curvature of the cylindrical surface.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: November 7, 2023
    Assignee: Industry-University Cooperation Foundation Hanyang University
    Inventors: Hong Ki Yoo, Min Woo Lee, Jingchao Xing
  • Patent number: 11803008
    Abstract: An optical device includes a waveguide configured to guide light, a taper integrated with the waveguide on a substrate configured for optical coupling, and an attenuator to degrade unwanted optical signal from the taper. The attenuator extends along one side of the taper, and includes one of a conductive structure, a doped structure and a refractive structure.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: October 31, 2023
    Inventors: Chewn-Pu Jou, Huan-Neng Chen, Lan-Chou Cho, Feng Wei Kuo
  • Patent number: 11789268
    Abstract: A diffractive beam expander device (EPE1) includes a first spectral filter region (C2a) and a second spectral filter region (C2b) to provide a first optical route for blue and green light (B, G), and to provide a second optical router for red light (R). The expander device (EPE1) includes a first Bragg grating region (BRGa) to enhance optical absorption of red light (R) in the first spectral filter region (C2a). The expander device (EPE1) includes a second Bragg grating region (BRGb) to enhance optical absorption of blue light (B) in the second spectral filter region (C2b).
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: October 17, 2023
    Assignee: Shenzhen Optiark Semiconductor Technologies Limited
    Inventors: Tapani Kalervo Levola, Houqiang Jiang, Yisheng Zhu, Yifan Zhu
  • Patent number: 11789347
    Abstract: The invention relates to a laser projection arrangement. The arrangement includes a sub-mount carrier with a main surface and at least one edge-emitting laser arranged on the sub-mount. The at least one edge-emitting laser is facing the sub-mount and includes at least one laser facet that is located at a predefined distance from the main surface of the sub-mount. A planar light circuit with at least one light guide has an inlet and is arranged on the sub-mount such that the at least one light guide and the inlet is located at the predefined distance from the main surface of the sub-mount facing the at least one laser facet.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: October 17, 2023
    Inventors: Jörg Erich Sorg, Nicole Berner
  • Patent number: 11782276
    Abstract: Systems and methods to reduce light loss from a waveguide. The system includes a waveguide having an incoupler to direct light into the waveguide and a laser projector having laser diodes mounted to a substrate. The laser projector is configured to provide a plurality of laser light beams to the incoupler of the waveguide. The system further includes at least one alignment component configured to align the plurality of laser light beams tangent with an edge of the incoupler to minimize light lost from the waveguide through contact with the incoupler more than once.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: October 10, 2023
    Assignee: GOOGLE LLC
    Inventors: Daniel Adema, Timothy Paul Bodiya, Shreyas Potnis