Patents Examined by John Bedtelyon
  • Patent number: 12287497
    Abstract: A optical apparatus to display an image to a user is disclosed. The apparatus comprises an image source to generate an image bearing light beam having a first numerical aperture; and a diffuser screen. The diffuser screen is configured to increase the numerical aperture of the image bearing light beam to a second numerical aperture. The diffuser screen comprises a first part comprising: a first face and second face substantially parallel to each other, a first array of a plurality of waveguides forming an optical path between the first face and the second face. A value of an optical property of each of the plurality of waveguides is selected randomly from a set of values of the optical property. The first array of a plurality of waveguides is arranged such that each of the plurality of waveguides has an optical axis that is substantially parallel to it's nearest neighbour.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: April 29, 2025
    Assignee: BAE SYSTEMS PLC
    Inventor: Jonathan Paul Freeman
  • Patent number: 12287486
    Abstract: An optical device, having at least first and second light-transmitting substrates, each having at least two external surfaces and an input aperture and an output aperture. The external surface of the first light-transmitting substrate is optically cemented to an external surface of the second light-transmitting substrate by an optical adhesive defining an interface plane. The refractive index of the optical adhesive is substantially lower than the refractive index of the first substrate. Part of the light waves entering the device through the input aperture and exiting the device through the output aperture impinge on the interface plane of the first substrate having incidence angles smaller than the critical angle. Another part of the light waves impinging on the interface plane have incidence angles higher than the critical angle. The interface plane is substantially transparent for the light waves impinging on interface plane having incidence angles smaller than the critical angle.
    Type: Grant
    Filed: February 22, 2024
    Date of Patent: April 29, 2025
    Assignee: OORYM OPTICS LTD.
    Inventors: Yaakov Amitai, Nadav Amitai
  • Patent number: 12281934
    Abstract: An optical fiber-based sensing membrane includes at least one optical fiber and a substrate. The at least one optical fiber is integrated in the substrate. The optical fiber-based sensing membrane includes, based on a specified geometric pattern of the at least one optical fiber, an optical fiber-based sensing membrane layout. The substrate includes a thickness and a material property that are specified to ascertain, via the at least one optical fiber and based on the optical fiber-based sensing membrane layout, a thermal property or a mechanical property associated with a device, or a radiation level associated with a device environment.
    Type: Grant
    Filed: May 22, 2024
    Date of Patent: April 22, 2025
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Benjamin Cuenot, Pascal Donzel, Vincent Lecoeuche, Andre Champavere
  • Patent number: 12282195
    Abstract: A method of using an integrated circuit includes monitoring a current between a first photodetector (PD) and an electronic circuit. The method further includes determining whether the monitored current is abnormal. The method further includes controlling a resonant structure to optically couple a first waveguide connected to the first PD to a second waveguide connected to a second PD, different from the first PD, in response to a determination that the monitored current is abnormal.
    Type: Grant
    Filed: November 14, 2023
    Date of Patent: April 22, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Weiwei Song, Stefan Rusu
  • Patent number: 12284780
    Abstract: A server rack is cabled to obviate the need for top-of-rack switches. Switches and severs are connected through de-mateable connection interfaces at distribution modules disposed along the raceway above the server cabinets. The distribution modules may have externally accessible ports, internally accessible ports, and/or payout spools for the switch cables and/or the server cables.
    Type: Grant
    Filed: December 2, 2022
    Date of Patent: April 22, 2025
    Assignee: CommScope Technologies LLC
    Inventors: John Paul Anderson, Jason Mikel Bautista, Paula Lockhart, Kamlesh G. Patel, Michael J. Wentworth, William J. Young, Scott C. Sievers
  • Patent number: 12276850
    Abstract: A semiconductor package includes a first mold layer at least partially encasing at least one photonic integrated circuit. A redistribution layer structure is fabricated on the first mold layer, the redistribution layer structure including dielectric material and conductive structures. A second mold layer at least partially encasing at least one semiconductor chip is fabricated on the redistribution layer structure. The redistribution layer structure provides electrical pathways between the at least one semiconductor chip and the at least one photonic integrated circuit. One or more voids are defined in the second mold layer in an area above an optical interface of the at least one photonic integrated circuit such that light is transmittable through dielectric material above the optical interface.
    Type: Grant
    Filed: July 24, 2023
    Date of Patent: April 15, 2025
    Assignee: ADVANCED MICRO DEVICES, INC.
    Inventors: Brett P. Wilkerson, Raja Swaminathan, Kong Toon Ng, Rahul Agarwal
  • Patent number: 12259585
    Abstract: A multi-fiber, fiber optic connector may include a reversible keying arrangement for determining the orientation for plugging the connector into an adapter to thereby allow for a change in polarity of the connection to be made on site. The connector housing may be configured to engage with a removable key that may be engaged with the housing in at least two different locations to provide the plug-in orientation, or the housing may have slidably displaceable keys movable between multiple positions on the housing.
    Type: Grant
    Filed: February 22, 2023
    Date of Patent: March 25, 2025
    Assignee: Senko Advanced Components, Inc.
    Inventors: Jeffrey Gniadek, Kim Man Wong, Yim Wong, Jimmy Chang
  • Patent number: 12253722
    Abstract: An optical package comprising an optical die that is electrically coupled to a package substrate, and an optical interconnect adjacent the optical die. The optical interconnect comprises a first polarizing filter adjacent to a first lens, a second polarizing filter adjacent to a second lens; and a film comprising a magnetic material between the first polarizing filter and the second polarizing filter. The second polarizing filter is rotated with respect to the first polarizing filter and the magnetic material is to rotate a polarization vector of light incoming to the optical interconnect. An optical fiber interface port is immediately adjacent to the first lens. The second lens is immediately adjacent to an optical interface of the optical die.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: March 18, 2025
    Assignee: Intel Corporation
    Inventors: Hiroki Tanaka, Kristof Darmawikarta, Brandon Marin, Robert May, Sri Ranga Sai Boyapati
  • Patent number: 12248173
    Abstract: Disclosed is an optical module, including a lower housing, an upper housing covering the lower housing, a circuit board, a first metal base, a second metal base, a silicon photonic chip, and a light emission module including a laser chip and an optical path assembly. The first metal base is disposed on one side of the upper housing. The second metal base is disposed on one side of the lower housing. The circuit board with a hollow region is disposed on the second metal base. The silicon photonic chip is disposed on the second metal base exposed from the hollow region. The laser chip is disposed on the first metal base. The optical path assembly is disposed on the first metal base and/or on the second metal base exposed from the hollow region, and guides a third optical signal emitted by the laser chip to the silicon photonic chip.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: March 11, 2025
    Assignee: DONGGUAN LUXSHARE TECHNOLOGIES CO., LTD
    Inventors: Chung-Hsin Fu, Min-Sheng Kao, ChunFu Wu, Yi-Tseng Lin, Chih-Wei Yu, Chien-Tzu Wu, QianBing Yan, Yueh-Kuo Lin
  • Patent number: 12242111
    Abstract: An optical multiplexing and demultiplexing method of the present disclosure includes arranging, face to face, a polished surface of a coated optical fiber whose side surface is polished to a core or a vicinity of the core and a polished surface of an optical waveguide whose propagation constant varies in a longitudinal direction and whose side surface is polished to a core or a vicinity of the core, and aligning the polished surface of the coated optical fiber and the polished surface of the optical waveguide so that desired branching ratio is obtained from one end of the coated optical fiber to the end, distal to the former end, of the optical waveguide by relatively moving the polished surface of the coated optical fiber and the polished surface of the optical waveguide.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: March 4, 2025
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takui Uematsu, Hidenobu Hirota, Hiroyuki Iida
  • Patent number: 12222627
    Abstract: An optical modulator includes a Mach-Zehnder interferometer including (i) a first optical waveguide including a first semiconductor junction diode, and (ii) a second optical waveguide including a second semiconductor junction diode. A semiconductor region connects the first and second semiconductor junction diodes such that a distance between the first and second optical waveguides is less than 2.0 ?m for at least a portion of a longitudinal direction of the optical modulator. In another aspect, a method of modulating an optical signal includes splitting input light into first and second optical transmission paths; modulating a phase difference between light in the first optical transmission path and light in the second optical transmission path without applying a bias voltage through an impedance less than 100 ohm between the first and second optical transmission paths; and combining light that is output from the first and second optical transmission paths.
    Type: Grant
    Filed: March 25, 2024
    Date of Patent: February 11, 2025
    Assignee: Aloe Semiconductor Inc.
    Inventor: Christopher R. Doerr
  • Patent number: 12222543
    Abstract: Disclosed is a nanoimprintable resin for use in optical waveguide applications. The nanoimprintable resin includes a base resin, metal oxide nanoparticles, and a photoinitiator. A cured film of the nanoimprintable resin exhibits a refractive index greater than or equal to 1.8 (589 nm), such as 1.9 (599 nm), according to ASTM D1218-21 at 25° C.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: February 11, 2025
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Atul Bhaskar Chaudhari, Klaus Henrik Valtteri Kalima, Mervi Kaarina Ylä-Jarkko, Pasi Petteri Heinonen
  • Patent number: 12210199
    Abstract: In one embodiment, an apparatus includes an upper cold plate and a lower cold plate, at least one of the upper cold plate or the lower cold plate comprising an electrical or optical path extending therethrough, a substrate and die package interposed between the upper cold plate or the lower cold plate, and a connector coupled to one of the upper cold plate or the lower cold plate for transmitting power or an optical signal through the electrical or optical path to the substrate and die package.
    Type: Grant
    Filed: November 14, 2023
    Date of Patent: January 28, 2025
    Assignee: CISCO TECHNOLOGY, INC.
    Inventor: Joel Richard Goergen
  • Patent number: 12210189
    Abstract: A method of making a photonic integrated circuit (PIC) is provided. The method comprises depositing a functional resist material layer over a substrate, disposing and pressing a stamp with a plurality of nanopatterns into the functional resist material for a period of time, and removing the stamp from the functional resist material to provide nanofeatures that are inverted versions of the nanopatterns, wherein the nanofeatures form one or more optical elements.
    Type: Grant
    Filed: October 2, 2023
    Date of Patent: January 28, 2025
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Mark William Knight, Stephanie Roxane Sandor-Leahy, Lakshminarayanan Ravi Narasimhan
  • Patent number: 12210265
    Abstract: An optical beam scanning semiconductor device includes 1×N electrically controlled, integrated optical switch matrix and specifically designed integrated optical grating output couplers at each of N output waveguides of 1×N switch. By selecting one of the N outputs of the 1×N switch as the output of the input optical signal, an optical output beam scans in free space. Variation in the grating output coupler design enables a smart scanning device with multiple controllable beam characteristics.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: January 28, 2025
    Assignee: SCIDATEK INC.
    Inventors: Tomoyuki Izuhara, Junichiro Fujita, Louay Eldada
  • Patent number: 12204187
    Abstract: An optical scan device includes an optical waveguide array, including a plurality of optical waveguides each of which propagates light along a first direction, that emits a light beam, the plurality of optical waveguides being arranged in a second direction that intersects the first direction, a phase shifter array including a plurality of phase shifters connected separately to each of the plurality of optical waveguides, a control circuit that controls a phase shift amount of each of the plurality of phase shifters and/or inputting of light to each of the plurality of phase shifters and thereby controls a direction and shape of the light beam that is emitted from the optical waveguide array, a photodetector that detects the light beam reflected by a physical object, and a signal processing circuit that generates distance distribution data on the basis of output from the photodetector.
    Type: Grant
    Filed: December 5, 2023
    Date of Patent: January 21, 2025
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasuhisa Inada, Atsushi Ishikawa, Yumiko Kato
  • Patent number: 12204147
    Abstract: An integrated on-chip polarization rotator splitter (26) comprises a waveguide polarization rotator (54) having a first and a second layer (62) that form a rib waveguide (66) together and are both made of silicon nitride. The first layer (62) has a first, a second and a third section. The first layer (64) has a first width (w1) that increases in the first section (S1), is constant in the second section (S1) and decreases in the third section (S3). The second layer (64) has a second width (w2) that continuously increases. The polarization rotator splitter (26) further includes a waveguide polarization splitter (61) comprising a first strip waveguide (71) and a second strip waveguide (72) that are separated by a gap (74). The first and second strip waveguides (71, 72) are also made of silicon nitride. The first and second strip waveguide (71, 72) form an asymmetric evanescent direction coupler.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: January 21, 2025
    Assignee: Scantinel Photonics GmbH
    Inventor: Sandeep Ummethala
  • Patent number: 12199404
    Abstract: Disclosed is a coherent optical combining photonic integrated circuit that can detect and align light amplified by a scalable quantity of semiconductor optical amplifiers (SOAs). The light can be split into beams and amplified by individual SOAs in a PIC and combined via couplers in the PIC. The combined light can be measured using a photodetector and the light beams can be adjusted based the photodetector measurement to coherently combine the light to achieve high optical power from the photonic integrated circuit.
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: January 14, 2025
    Assignee: OpenLight Photonics, Inc.
    Inventors: John Parker, Tom Mader, Steven B. Alleston
  • Patent number: 12189217
    Abstract: An optical device including a waveguide, electrodes, and a connecting dielectric is described. The waveguide includes an electro-optic material having a waveguide optical refractive index and a waveguide microwave dielectric constant. The electrodes include a first electrode and a second electrode. The waveguide is between the first electrode and the second electrode. At least a portion of the connecting dielectric is between the waveguide and electrodes. The connecting dielectric has a microwave dielectric constant greater than the waveguide microwave dielectric constant.
    Type: Grant
    Filed: February 9, 2024
    Date of Patent: January 7, 2025
    Assignee: HyperLight Corporation
    Inventors: Mian Zhang, Christian Reimer, Prashanta Kharel
  • Patent number: 12174428
    Abstract: An optical connector including: a plug housing having a pin cavity; a pin disposed at least partially in the pin cavity of the plug housing, the pin comprising at least a pin sleeve; a receptacle housing having a socket cavity; a socket disposed at least partially in the socket cavity, the socket comprising at least a socket sleeve; and an alignment sleeve between said pin and socket, wherein the plug housing, the pin, the pin sleeve, the pin ferrule, the receptacle housing, the socket, the socket sleeve, the socket ferrule, and the alignment sleeve: (i) magnetic permeability that is less than 1.0 B/H, where B is magnetic flux density and H is magnetic flux, and (ii) are configured to perform at least 100,000 mating cycles.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: December 24, 2024
    Assignee: Nortech Systems, Inc.
    Inventor: Scott G. Blanc