公开(公告)号：US20230314731A1

公开(公告)日：2023-10-05

申请号：US18022773

申请日：2021-09-10

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Boon S. OOI ,  Omar ALKHAZRAGI ,  Abderrahmen TRICHILI ,  Islam ASHRY ,  Tien Khee NG ,  Mohamed-Slim ALOUINI

IPC: G02B6/42 ,  H04B10/11

CPC classification number: G02B6/4203 ,  H04B10/11

Abstract: A compounded light-focusing optical element is configured to focus light, and the compounded light-focusing optical element includes a body having a first, flat, end face and a second, curved end face, the second, curved end face being opposite to the first, flat end face, and plural optical fibers extending through the body, from the first, flat end face to the second, curved end face. The plural optical fibers are fused to each other to form the body, and end faces of the plural optical fibers, corresponding to the second, curved end face, are pointing in different directions.

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：US20230047142A1

公开(公告)日：2023-02-16

申请号：US17792280

申请日：2021-01-06

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

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

IPC: H04B10/116 ,  H04B10/61 ,  H04B10/2519

Abstract: A visible-light communication and illumination array includes a substrate and plural surface-emitting superluminescent diodes, SLDs, distributed across the substrate. A first set of SLDs of the plural SLDs generates a first light beam having substantially a first wavelength, a second set of SLDs of the plural SLDs generates a second light beam having substantially a second wavelength, and a third set of SLDs of the plural SLDs generates a third light beam having substantially a third wavelength. The array further includes a controller configured to encode at least one of the first light beam, the second light beam and the third light beam to transmit information. A combination of the first light beam, the second light beam and the third light beam produces white light.

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.