公开(公告)号：US20240007197A1

公开(公告)日：2024-01-04

申请号：US17923069

申请日：2021-05-12

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Meiwei KONG ,  Boon S. OOI ,  Tien Khee NG

IPC: H04B10/80 ,  G01S15/88 ,  H04B10/27

CPC classification number: H04B10/807 ,  G01S15/88 ,  H04B10/27 ,  H04B2210/006

Abstract: An underwater wireless communication network includes a first buoyant platform, including a radio-frequency communication transceiver and a wired communication transceiver, floating at a surface of a body of water. A first underwater sensor node is coupled to the first buoyant platform by at least one wire over which the first buoyant platform and the first underwater sensor node communicate. The first underwater sensor includes a wired communication transceiver to communicate with the first buoyant platform over the at least one wire. The first buoyant platform or the first underwater sensor node includes a first ambient energy collector configured to power the first buoyant platform or the first underwater sensor node. A second underwater sensor node, arranged under the body of water, includes a second ambient energy collector configured to power the second underwater sensor node. The first and second underwater sensor nodes each comprise a sensor, an optical communication transceiver, and an acoustic positioning system.

公开(公告)号：US20230420470A1

公开(公告)日：2023-12-28

申请号：US18036938

申请日：2021-11-15

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Boon Siew OOI ,  Chun Hong KANG ,  Tien Khee NG ,  Omar ALKHAZRAGI ,  Osman M. BAKR

IPC: H01L27/146 ,  G02B6/42

CPC classification number: H01L27/14621 ,  G02B6/4215 ,  G02B6/4298 ,  H01L27/14625

Abstract: An optical converting receiver, for changing a visible light beam into a near-infrared, NIR, light beam, includes a substrate, a non-silicon-based optical element located on the substrate and configured to receive the visible light beam and convert the visible light beam into the NIR light beam, a silicon-based optical element located on the substrate and optically coupled to the non-silicon-based optical element, the silicon-based optical element being configured to propagate the NIR light beam, and a photodetector located on the substrate and optically coupled to the silicon-based optical element, the photodetector being configured to convert the NIR light beam into an electrical signal.

公开(公告)号：US20230198218A1

公开(公告)日：2023-06-22

申请号：US18008289

申请日：2021-06-15

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Boon S. OOI ,  Omar ALKHAZRAGI ,  Tien Khee NG

IPC: H01S5/02251 ,  H01S5/22 ,  H01S5/187 ,  H01S5/125 ,  H01S5/12 ,  H01S5/024

CPC classification number: H01S5/02251 ,  H01S5/2214 ,  H01S5/2223 ,  H01S5/187 ,  H01S5/125 ,  H01S5/1221 ,  H01S5/02461

Abstract: An array of surface-emitting gain chips includes a common substrate, plural gain chips formed on the common substrate, each configured to generate a light beam, plural optical couplers, each located on a top surface of a corresponding gain chip of the plural gain chips, plural optical fibers, each connected with one end to a corresponding optical coupler of the plurality of optical couplers, an array wide optical coupler connected to another end of the plural optical fibers, and a single optical fiber connected to the array wide optical coupler and configured to output the combined light beams.

公开(公告)号：US20220021465A1

公开(公告)日：2022-01-20

申请号：US17413700

申请日：2019-11-26

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Boon S. OOI ,  Chun Hong KANG ,  Tien Khee NG ,  Osman M. BAKR ,  Ibrahim DURSUN ,  Lutfan SINATRA ,  Marat LUTFULLIN

IPC: H04B10/69 ,  H04B10/67 ,  H04B10/116 ,  C09K11/66

Abstract: A high-speed, wavelength-converting receiver that includes a housing; a high-speed, wavelength-converting layer attached to the housing and configured to absorb a first light having a first wavelength range and emit a second light having a second wavelength range, which is different from the first wavelength range; and a high-speed photodetector attached to the housing and having an active face configured to absorb the second light having the second wavelength range and generate an electrical signal. The active face of the photodetector is fully placed within the housing.

公开(公告)号：US20200088353A1

公开(公告)日：2020-03-19

申请号：US16686993

申请日：2019-11-18

Applicant: King Abdullah University of Science and Technology

Inventor： Boon S. OOI ,  Bilal JANJUA ,  Chao SHEN ,  Chao ZHAO ,  Tien Khee NG

IPC: F21K9/00 ,  H04B10/116 ,  H01L33/06 ,  H01L33/08 ,  H01L33/32

Abstract: Embodiments of the present disclosure describe a white light illumination system using InGaN-based orange nanowires (NWs) LED, in conjunction with a blue LD for high speed optical wireless communications. By changing the relative intensities of an ultrabroad linewidth orange LED and narrow-linewidth blue LD components, a hybrid LED/LD device achieves correlated color temperature (CCT) ranging from 3000 K to above 6000K with color rendering index (CRI) values reaching 83.1. Orange-emitting NWs LED are utilized as an active-phosphor, while a blue LD was used for both color mixing and optical wireless communications

公开(公告)号：US20230163638A1

公开(公告)日：2023-05-25

申请号：US17922859

申请日：2021-05-11

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Meiwei KONG ,  Boon S. OOI ,  Tien Khee NG

IPC: H02J50/30 ,  H04B10/112 ,  H02J50/00 ,  H02J7/35

CPC classification number: H02J50/30 ,  H04B10/112 ,  H02J50/001 ,  H02J7/35 ,  H02J2300/24

Abstract: An optical wireless communication receiver includes one or more harvesting solar cells configured to transform light into electrical power; one or more communication solar cells configured to transform light into an electrical signal embedding information; a rechargeable battery configured to store the electrical power generated by the one or more harvesting solar cells; a communication module configured to decode the electrical signal generated by the one or more communication solar cells and extract the information; a first switch configured to connect the one or more harvesting solar cells to the rechargeable battery for a harvesting-first state, and to the communication module for a communication-second state; a second switch configured to connect the one or more communication solar cells to the communication module for a communication-first state, and to the rechargeable battery for a harvesting-second state; and a microprocessor configured to control the first and second switches.

公开(公告)号：US20220381406A1

公开(公告)日：2022-12-01

申请号：US17879156

申请日：2022-08-02

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Ibrahim DURSUN ,  Chao SHEN ,  Osman M. BAKR ,  Tien Khee NG ,  Boon OOI

IPC: F21K9/64 ,  C09K11/66 ,  C09K11/88 ,  H05B33/14 ,  C09K11/02 ,  H04B10/116

Abstract: A device including a material including halide perovskite nanocrystals forming a film and configured to receive first electromagnetic radiation having a first wavelength emitted by an excitation source, the first electromagnetic radiation is modulated to include information prior to being received by the material, the material is configured to absorb the first electromagnetic radiation including the information and to emit second electromagnetic radiation having a second wavelength and also including the information, the second wavelength being in the visible range, and the first wavelength of the first electromagnetic radiation is shorter than the visible range; a detector configured to receive the second electromagnetic radiation and to extract the information; and a screen connected to the detector and configured to display the information.

公开(公告)号：US20220329103A1

公开(公告)日：2022-10-13

申请号：US17715335

申请日：2022-04-07

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Boon Siew OOI ,  Tien Khee NG ,  Chun Hong KANG ,  Meiwei KONG ,  Yujian GUO

IPC: H02J50/00 ,  H04B10/40 ,  H02J50/30 ,  F03B13/10 ,  H04B13/02

Abstract: A free node to be deployed underwater for omnidirectional energy and data harvesting includes a housing that forms a sealed chamber; a wavelength-changing layer attached to an outside of the housing and configured to receive a first optical signal having a first wavelength range and to emit a second optical signal having a second wavelength range, different from the first wavelength range, wherein the first optical signal includes encoded data; a flexible solar cell wrapped around the housing, the flexible solar cell being configured to receive the second optical signal and generate an electrical signal; an energy storage module located in the chamber and configured to store electrical energy associated with the electrical signal; and a decoder located in the chamber and configured to receive the electrical signal and decode the encoded data. The first wavelength range is ultraviolet light and the second wavelength range is visible or infrared light.

公开(公告)号：US20220140201A1

公开(公告)日：2022-05-05

申请号：US17577568

申请日：2022-01-18

Applicant: King Abdullah University of Science and Technology

Inventor： Tien Khee NG ,  Chao ZHAO ,  Davide PRIANTE ,  Boon S. OOI ,  Mohamed Ebaid Abdrabou HUSSEIN

IPC: H01L33/44 ,  H01L31/0216 ,  C25B1/55 ,  C25B1/04 ,  H01L31/18

Abstract: Gallium nitride based semiconductors are provided having one or more passivated surfaces. The surfaces can have a plurality of thiol compounds attached thereto for enhancement of optoelectronic properties and/or solar water splitting properties. The surfaces can also include wherein the surface has been treated with chemical solution for native oxide removal and/or wherein the surface has attached thereto a plurality of nitrides, oxides, insulating compounds, thiol compounds, or a combination thereof to create a treated surface for enhancement of optoelectronic properties and/or solar water splitting properties. Methods of making the gallium nitride based semiconductors are also provided. Methods can include cleaning a native surface of a gallium nitride semiconductor to produce a cleaned surface, etching the cleaned surface to remove oxide layers on the surface, and applying single or multiple coatings of nitrides, oxides, insulating compounds, thiol compounds, or a combination thereof attached to the surface.

公开(公告)号：US20210116725A1

公开(公告)日：2021-04-22

申请号：US17111639

申请日：2020-12-04

Applicant: King Abdullah University of Science and Technology

Inventor： Boon S. OOI ,  Aditya PRABASWARA ,  Bilal JANJUA ,  Tien Khee NG

IPC: G02F1/017 ,  F21K9/62 ,  F21K9/64 ,  F21K9/68 ,  F21K9/69 ,  H01L27/15 ,  H01L33/36 ,  H01L33/24

Abstract: A system and method providing correlated color temperature-tunable (CCT-tunable) white light using a laser diode(s) in conjunction with a III-Nitride nanowires-based LED element grown on a semi-transparent substrate. The tunability spans across yellow, amber, and red wavelengths and can be implemented by current injection. The current-dependent broad wavelength tunability enables control of wide range of CCT values (intensity, peak wavelength, and spectral coverage). The broad coverage in the yellow-amber-red color regime mimics that of a passive yellow phosphor, while the injection of current into the LED element defines an active phosphor element. The semi-transparent active phosphor element allows direct transmission of light from a laser diode(s) for achieving extreme wide tunability of CCT.