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：US20220283022A1

公开(公告)日：2022-09-08

申请号：US17637684

申请日：2020-08-21

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Boon Siew OOI ,  Yuan MAO ,  Islam ASHRY

IPC: G01H9/00 ,  G01D5/353 ,  A01G7/00

Abstract: An integrated system for detecting a red palm weevil (RPW), farm fire, and soil moisture includes an optical fiber configured to be extending to a tree, and a distributed acoustic sensor (DAS) box connected to the optical fiber. The DAS box is configured to process first to third different optical signals reflected from the optical fiber, to determine a presence of the RPW from the first optical signal, a temperature at a location along the optical fiber from the second optical signals, and a moisture at a location around the tree from the third optical signal.

公开(公告)号：US20230160743A1

公开(公告)日：2023-05-25

申请号：US17913003

申请日：2021-03-09

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Islam ASHRY ,  Boon Siew OOI ,  Yuan MAO

IPC: G01H9/00 ,  G01D5/353 ,  G06N3/0464 ,  G06N3/048 ,  H04R23/00

CPC classification number: G01H9/004 ,  G01D5/35361 ,  G01D5/35316 ,  G06N3/0464 ,  G06N3/048 ,  H04R23/008

Abstract: A fiber optic distributed acoustic sensing (DAS) system for detecting a red palm weevil (RPW) includes an optical fiber configured to be wrapped around a tree and a DAS box connected to the optical fiber. The DAS box includes a processing unit that is configured to receive a filtered Rayleigh signal reflected by the optical fiber, and run the filtered Rayleigh signal through a neural network system to determine a presence of the RPW in the tree.

公开(公告)号：US20180261455A1

公开(公告)日：2018-09-13

申请号：US15753578

申请日：2016-10-07

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Boon Siew OOI ,  Chao ZHAO ,  Tien Khee NG

IPC: H01L21/02 ,  C30B29/60 ,  C30B29/40 ,  C30B23/02 ,  H01L31/0352 ,  H01L33/32 ,  H01L33/40 ,  H01L33/22 ,  H01L29/06

CPC classification number: H01L21/02603 ,  C30B23/025 ,  C30B29/403 ,  C30B29/60 ,  H01L21/02631 ,  H01L29/0669 ,  H01L31/035227 ,  H01L33/22 ,  H01L33/32 ,  H01L33/405

Abstract: Elemental or compound semiconductors on metal substrates and methods of growing them are provided. The methods can include the steps of: (i) providing a metal substrate; (ii) adding an interlayer on a surface of the metal substrate, and (iii) growing semiconductor nanowires on the interlayer using a semiconductor epitaxy growth system to form the elemental or compound semiconductor. The method can include direct growth of high quality group III-V and group III-N based materials in the form of nanowires and nanowires-based devices on metal substrates. The nanowires on all-metal scheme greatly simplifies the fabrication process of nanowires based high power light emitters.

公开(公告)号：US20230079092A1

公开(公告)日：2023-03-16

申请号：US17801594

申请日：2021-02-22

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Omar ALKHAZRAGI ,  Mohamed-Slim ALOUINI ,  Osama AMIN ,  Seifallah JARDAK ,  Boon Siew OOI ,  Basem SHIHADA

IPC: H04B13/02

Abstract: A communication system includes a first communication gateway arranged proximate to a surface of a body of water and an underwater communication gateway. The underwater communication gateway is configured to receive data from a first underwater communication device using radio frequencies and the ethernet data link layer protocol, to convert the data received from the first underwater communication device from the ethernet data link layer protocol to the second data link layer protocol, and to transmit, using optical radiation and the second data link layer protocol, the data converted by the underwater communication gateway to the first communication gateway. The first communication gateway is configured to convert the data transmitted by the underwater communication gateway from the second data link layer protocol to the ethernet data link layer protocol, and to transmit, using the ethernet data link layer protocol, the data converted by the first communication device to a further communication device.

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：US20210288717A1

公开(公告)日：2021-09-16

申请号：US17258183

申请日：2019-07-09

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Chao SHEN ,  Boon Siew OOI

IPC: H04B10/116 ,  H01S5/026 ,  H01S5/02208 ,  H04B10/50

Abstract: An illuminating and wireless communication device includes a base; a shell attached to the base and forming a closed chamber; a laser diode located inside the closed chamber and configured to generate visible light; and a photodetector located inside the closed chamber and configured to detect incoming light. A parameter of the generated visible light is modulated to encode information.

公开(公告)号：US20220077933A1

公开(公告)日：2022-03-10

申请号：US17423233

申请日：2020-02-19

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

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

IPC: H04B10/291 ,  H04B10/116 ,  H04B10/294

Abstract: A plastic optical fiber communication system includes a light source that emits a first signal having a first wavelength in a visible light spectrum, the first signal being encoded with information at a high data-rate of 0.1 to 10 Gbit/s; a pump laser system that emits a pump laser light having a second wavelength, different from the first wavelength; a perovskite-doped optical fiber excited by the pump laser light to generate an amplified spontaneous emission spectrum that encompasses the first wavelength so as to receive and amplify the first signal for generating an amplified output signal having the first wavelength; and a photodetector optically coupled to the perovskite-doped optical fiber, and configured to receive the amplified output signal at the high data-rate of 0.1 to 10 Gbit/s. The amplified output signal is encoded with the information.

公开(公告)号：US20220029384A1

公开(公告)日：2022-01-27

申请号：US17281705

申请日：2019-09-25

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY ,  KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Mohammed Zahed Mustafa KHAN ,  Md Hosne Mobarok SHAMIM ,  Tien Khee NG ,  Boon Siew OOI

IPC: H01S5/10 ,  G02F1/35 ,  H01S5/343 ,  H01S5/00

Abstract: A tunable laser system includes a laser diode producing a light beam having a plurality of frequencies in a visible portion of a light spectrum. A collimating lens arranged in front of the laser diode produces a collimated light beam from the light beam produced by the laser diode. A partial reflector arranged in a path of the collimated laser beam reflects a first portion of the collimated light beam and passes a second portion of the collimated light beam as an output light beam. The first portion of the collimated light beam enters the laser diode and mixes with the plurality of frequencies of the light beam produced by the laser diode so that the laser diode produces a self-injection-locked light beam including at least two frequencies having a frequency difference in a terahertz frequency range. A translational stage adjusts a distance between the laser diode and the partial reflector. The laser diode or the partial reflector is mounted on the translational stage. The at least two frequencies of the self-injection-locked light beam are based on the distance between the laser diode and the partial reflector.

公开(公告)号：US20200328079A1

公开(公告)日：2020-10-15

申请号：US16090758

申请日：2017-05-09

Applicant: King Abdullah University of Science and Technology ,  KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY

Inventor： Chao ZHAO ,  Tien Khee NG ,  Lain-Jong LI ,  Boon Siew OOI ,  Ahmed Y. ALYAMENI ,  Munir M. ELDESOUKI

IPC: H01L21/02 ,  H01L29/267 ,  H01L29/06

Abstract: Methods of direct growth of high quality group III-V and group III-N based materials and semiconductor device structures in the form of nanowires, planar thin film, and nanowires-based devices on metal substrates are presented. The present compound semiconductor all-metal scheme greatly simplifies the fabrication process of high power light emitters overcoming limited thermal and electrical conductivity of nanowires grown on silicon substrates and metal thin film in prior art. In an embodiment the methods include: (i) providing a metal substrate; (ii) forming a transition metal dichalcogenide (TMDC) layer on a surface of the metal substrate; and (iii) growing a semiconductor epilayer on the transition metal dichalcogenide layer using a semiconductor epitaxy growth system. In an embodiment, the semiconductor device structures can be compound semiconductors in contact with a layer of metal dichalcogenide, wherein the layer of metal dichalcogenide is in contact with a metal substrate.