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1.
公开(公告)号:US20200266902A1
公开(公告)日:2020-08-20
申请号:US16863356
申请日:2020-04-30
Inventor: Boon S. OOI , Bilal JANJUA , Chao SHEN , Hassan M. OUBEI , Tien Khee NG
IPC: H04B13/02 , H04B10/80 , H04B10/116 , H01S5/00 , H04B10/564 , H04L27/26
Abstract: Embodiments of the present disclosure describe an underwater optical communication and illumination system employing laser diodes directly encoded with data, including spectrally efficient orthogonal frequency division multiplex quadrature amplitude modulation (QAM-OFDM) data. A broadband light source may be utilized to provide both illumination to an underwater field of interest and underwater optical communication from the field of interest to a remote location.
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2.
公开(公告)号:US20200088353A1
公开(公告)日:2020-03-19
申请号:US16686993
申请日:2019-11-18
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
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公开(公告)号:US20220381406A1
公开(公告)日:2022-12-01
申请号:US17879156
申请日:2022-08-02
Inventor: Ibrahim DURSUN , Chao SHEN , Osman M. BAKR , Tien Khee NG , Boon OOI
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.
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公开(公告)号:US20210288717A1
公开(公告)日:2021-09-16
申请号:US17258183
申请日:2019-07-09
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.
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公开(公告)号:US20190145587A1
公开(公告)日:2019-05-16
申请号:US16098575
申请日:2017-04-27
Inventor: Ibrahim DURSUN , Chao SHEN , Osman M. BAKR , Tien Khee NG , Boon OOI
IPC: F21K9/64 , C09K11/66 , C09K11/88 , C09K11/02 , H04B10/116
Abstract: Embodiments of the present disclosure provide devices and systems including a material including a halide perovskite and/or phosphor to produce and/or communicate using visible light, and the like.
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6.
公开(公告)号:US20180062766A1
公开(公告)日:2018-03-01
申请号:US15679898
申请日:2017-08-17
Inventor: Boon S. OOI , Bilal JANJUA , Chao SHEN , Hassan M. OUBEI , Tien Khee NG
IPC: H04B13/02 , H04B10/80 , H04L27/26 , H04B10/564 , H01S5/00
CPC classification number: H04B13/02 , H01S5/0071 , H04B10/116 , H04B10/564 , H04B10/80 , H04B10/807 , H04L27/2698
Abstract: Embodiments of the present disclosure describe an underwater optical communication and illumination system employing laser diodes directly encoded with data, including spectrally efficient orthogonal frequency division multiplex quadrature amplitude modulation (QAM-OFDM) data. A broadband light source may be utilized to provide both illumination to an underwater field of interest and underwater optical communication from the field of interest to a remote location.
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公开(公告)号:US20220140903A1
公开(公告)日:2022-05-05
申请号:US17431465
申请日:2019-05-07
Inventor: Boon Siew OOI , Xiaobin SUN , Chao SHEN , Tien Khee NG
IPC: H04B10/112 , H04B10/118 , H04B13/02
Abstract: A method for transmitting information across a water-air interface with a ultraviolet (UV) beam, the method including emitting the UV beam in a first medium, with a first optical wireless communication device; measuring a scintillation index of the UV beam in a second medium, different from the first medium, at a second optical wireless communication device; selecting, based on a value of the scintillation index, a modulation scheme for the UV beam; and modulating the UV beam with the selected modulation scheme. The UV beam has a wavelength in a range of 100 to 400 nm.
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公开(公告)号:US20210247029A1
公开(公告)日:2021-08-12
申请号:US17245896
申请日:2021-04-30
Inventor: Boon S. OOI , Bilal JANJUA , Chao SHEN , Chao ZHAO , Tien Khee NG
IPC: F21K9/00 , H01L33/06 , H01L33/08 , H01L33/32 , H04B10/116
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
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公开(公告)号:US20200332968A1
公开(公告)日:2020-10-22
申请号:US16891621
申请日:2020-06-03
Inventor: Ibrahim DURSUN , Chao SHEN , Osman M. BAKR , Tien Khee NG , Boon OOI
Abstract: Embodiments of the present disclosure provide devices and systems including a halide perovskite and/or phosphor to produce and/or communicate using visible light, and the like.
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公开(公告)号:US20200295529A1
公开(公告)日:2020-09-17
申请号:US16464186
申请日:2017-11-28
Inventor: Boon Siew OOI , Chao SHEN , Tien Khee NG
Abstract: An integrated semiconductor optical amplifier-laser diode (SOA-LD) device includes a laser diode (LD) section fabricated on a substrate, a semiconductor optical amplifier (SOA) section fabricated on the substrate adjacent to the LD section; and a trench formed at least partially between the LD section and SOA section to electrically isolate the LD section and the SOA section while maintaining optical coupling between the LD section and the SOA section.
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