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公开(公告)号:US20210408329A1
公开(公告)日:2021-12-30
申请号:US17471379
申请日:2021-09-10
Inventor: Boon S. OOI , Aditya PRABASWARA , Bilal JANJUA , Tien Khee NG
Abstract: A dislocation-free GaN/InGaN-based nanowires-LED epitaxially grown on a transparent, electrically conductive template substrate. The simultaneous transparency and conductivity are provided by a thin, translucent metal contact integrated with a quartz substrate. The light transmission properties of the translucent metal contact are tunable during epitaxial growth of the nanowires LED. Transparent light emitting diodes (LED) devices, optical circuits, solar cells, touch screen displays, and integrated photonic circuits can be implemented using the current platform.
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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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3.
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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公开(公告)号:US20210116725A1
公开(公告)日:2021-04-22
申请号:US17111639
申请日:2020-12-04
Inventor: Boon S. OOI , Aditya PRABASWARA , Bilal JANJUA , Tien Khee NG
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.
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5.
公开(公告)号:US20200259047A1
公开(公告)日:2020-08-13
申请号:US16838299
申请日:2020-04-02
Inventor: Boon S. OOI , Aditya PRABASWARA , Bilal JANJUA , Tien Khee NG
Abstract: A dislocation-free GaN/InGaN-based nanowires-LED epitaxially grown on a transparent, electrically conductive template substrate. The simultaneous transparency and conductivity are provided by a thin, translucent metal contact integrated with a quartz substrate. The light transmission properties of the translucent metal contact are tunable during epitaxial growth of the nanowires LED. Transparent light emitting diodes (LED) devices, optical circuits, solar cells, touch screen displays, and integrated photonic circuits can be implemented using the current platform.
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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: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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8.
公开(公告)号:US20180248077A1
公开(公告)日:2018-08-30
申请号:US15906694
申请日:2018-02-27
Inventor: Boon S. OOI , Aditya PRABASWARA , Bilal JANJUA , Tien Khee NG
CPC classification number: H01L33/24 , H01L33/0025 , H01L33/007 , H01L33/06 , H01L33/08 , H01L33/16 , H01L33/32 , H01L33/385 , H01L33/40 , H01L33/42 , H01L2933/0016
Abstract: A dislocation-free GaN/InGaN-based nanowires-LED epitaxially grown on a transparent, electrically conductive template substrate. The simultaneous transparency and conductivity are provided by a thin, translucent metal contact integrated with a quartz substrate. The light transmission properties of the translucent metal contact are tunable during epitaxial growth of the nanowires LED. Transparent light emitting diodes (LED) devices, optical circuits, solar cells, touch screen displays, and integrated photonic circuits can be implemented using the current platform.
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9.
公开(公告)号:US20180087722A1
公开(公告)日:2018-03-29
申请号:US15674275
申请日:2017-08-10
Inventor: Boon S. OOI , Bilal JANJUA , Chao SHEN , Chao ZHAO , Tien Khee NG
CPC classification number: F21K9/00 , F21Y2115/10 , F21Y2115/30 , H01L33/06 , H01L33/08 , H01L33/32 , H04B10/11 , 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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