Patents by Inventor Yi-Kuei Ryan Wu
Yi-Kuei Ryan Wu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11968034Abstract: Photonic devices, photonic integrated circuits, optical elements, and techniques of making and using the same are described. A photonic device includes an input region adapted to receive an optical signal including a multiplexed channel characterized by a distinct wavelength, a dispersive region optically coupled with the input region to receive the optical signal, the dispersive region including a plurality of sub-regions defined by an inhomogeneous arrangement of a first material and a second material, and a plurality of output regions optically coupled with the input region via the dispersive region. The plurality of sub-regions can include an input channel section, one or more coupler sections, and one or more branching sections. The plurality of sub-regions together can configure the photonic device to demultiplex the optical signal and to isolate the multiplexed channel at a first output region of the plurality of output regions.Type: GrantFiled: August 18, 2022Date of Patent: April 23, 2024Assignee: X Development LLCInventors: Sunil Pai, Yi-Kuei Ryan Wu
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Publication number: 20240063934Abstract: Photonic devices, photonic integrated circuits, optical elements, and techniques of making and using the same are described. A photonic device includes an input region adapted to receive an optical signal including a multiplexed channel characterized by a distinct wavelength, a dispersive region optically coupled with the input region to receive the optical signal, the dispersive region including a plurality of sub-regions defined by an inhomogeneous arrangement of a first material and a second material, and a plurality of output regions optically coupled with the input region via the dispersive region. The plurality of sub-regions can include an input channel section, one or more coupler sections, and one or more branching sections. The plurality of sub-regions together can configure the photonic device to demultiplex the optical signal and to isolate the multiplexed channel at a first output region of the plurality of output regions.Type: ApplicationFiled: August 18, 2022Publication date: February 22, 2024Inventors: Sunil Pai, Yi-Kuei Ryan Wu
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Publication number: 20240056211Abstract: Photonic devices, photonic integrated circuits, optical elements, and techniques of making and using the same are described. A photonic device includes an input region adapted to receive an optical signal including a multiplexed channel characterized by a distinct wavelength, a dispersive region optically coupled with the input region to receive the optical signal, the dispersive region including a plurality of sub-regions defined by an inhomogeneous arrangement of a first material and a second material, and a plurality of output regions optically coupled with the input region via the dispersive region. The plurality of sub-regions can include an input channel section, an in-coupler section, a parallel channel section, an out-coupler section, and an output channel section. The plurality of sub-regions together can configure the photonic device to demultiplex the optical signal and to isolate the multiplexed channel at a first output region of the plurality of output regions.Type: ApplicationFiled: August 12, 2022Publication date: February 15, 2024Inventors: Sunil Pai, Yi-Kuei Ryan Wu
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Patent number: 11832364Abstract: Disclosed herein is an integrated photonics device including a frequency stabilization subsystem for monitoring and/or adjusting the wavelength of light emitted by one or more light sources. The device can include one or more selectors that can combine, select, and/or filter light along one or more light paths, which can include light emitted by a plurality of light sources. Example selectors may include, but are not limited to, an arrayed waveguide grating (AWG), a ring resonator, a plurality of distributed Bragg reflectors (DBRs), a plurality of filters, and the like. Output light paths from the selector(s) can be input into one or more detector(s). The detector(s) can receive the light along the light paths and can generate one or more signals as output signal(s) from the frequency stabilization subsystem.Type: GrantFiled: July 12, 2021Date of Patent: November 28, 2023Inventors: Alfredo Bismuto, Yi-Kuei Ryan Wu, Thomas Schrans, Andrea Trita, Aaron Zilkie
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Publication number: 20230266542Abstract: A photonic coupler includes an input coupling section, an output coupling section, and a multimode interference (MMI) waveguide section. The input coupling section is adapted to receive an input optical signal along an input waveguide channel. The output coupling section is adapted to output a pair of output optical signals along output waveguide channels. The output optical signals having output optical powers split from the input optical signal. The MMI waveguide section is optically coupled between the input and output coupling sections. Notched waveguide sections may each be disposed between the MMI waveguide section and a corresponding one of the input or output coupling sections and/or the MMI waveguide section may include curvilinear sidewalls.Type: ApplicationFiled: February 9, 2023Publication date: August 24, 2023Inventor: Yi-Kuei Ryan Wu
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Patent number: 11609392Abstract: A photonic coupler includes an input coupling section, an output coupling section, and a multimode interference (MMI) waveguide section. The input coupling section is adapted to receive an input optical signal along an input waveguide channel. The output coupling section is adapted to output a pair of output optical signals along output waveguide channels. The output optical signals having output optical powers split from the input optical signal. The MMI waveguide section is optically coupled between the input and output coupling sections. Notched waveguide sections may each be disposed between the MMI waveguide section and a corresponding one of the input or output coupling sections and/or the MMI waveguide section may include curvilinear sidewalls.Type: GrantFiled: February 24, 2022Date of Patent: March 21, 2023Assignee: X Development LLCInventor: Yi-Kuei Ryan Wu
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Publication number: 20210345468Abstract: Disclosed herein is an integrated photonics device including a frequency stabilization subsystem for monitoring and/or adjusting the wavelength of light emitted by one or more light sources. The device can include one or more selectors that can combine, select, and/or filter light along one or more light paths, which can include light emitted by a plurality of light sources. Example selectors may include, but are not limited to, an arrayed waveguide grating (AWG), a ring resonator, a plurality of distributed Bragg reflectors (DBRs), a plurality of filters, and the like. Output light paths from the selector(s) can be input into one or more detector(s). The detector(s) can receive the light along the light paths and can generate one or more signals as output signal(s) from the frequency stabilization subsystem.Type: ApplicationFiled: July 12, 2021Publication date: November 4, 2021Inventors: Alfredo Bismuto, Yi-Kuei Ryan Wu, Thomas Schrans, Andrea Trita, Aaron Zilkie
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Patent number: 11064592Abstract: Disclosed herein is an integrated photonics device including a frequency stabilization subsystem for monitoring and/or adjusting the wavelength of light emitted by one or more light sources. The device can include one or more selectors that can combine, select, and/or filter light along one or more light paths, which can include light emitted by a plurality of light sources. Example selectors may include, but are not limited to, an arrayed waveguide grating (AWG), a ring resonator, a plurality of distributed Bragg reflectors (DBRs), a plurality of filters, and the like. Output light paths from the selector(s) can be input into one or more detector(s). The detector(s) can receive the light along the light paths and can generate one or more signals as output signal(s) from the frequency stabilization subsystem.Type: GrantFiled: September 25, 2019Date of Patent: July 13, 2021Assignee: Apple Inc.Inventors: Alfredo Bismuto, Yi-Kuei Ryan Wu, Thomas Schrans, Andrea Trita, Aaron Zilkie
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Patent number: 9799359Abstract: A recording head includes a layer of plasmonic metal deposited on a surface of the recording head. One or more non-self-supporting layers of crystalline material are attached to the plasmonic metal, the one or more layers of crystalline materials configured to form an active region of a laser. A waveguide is configured to receive plasmons from the laser and direct the plasmons to a recording medium.Type: GrantFiled: March 21, 2017Date of Patent: October 24, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Scott Eugene Olson, Karim Tatah, Yi-Kuei Ryan Wu, Mark Anthony Gubbins, Marcus B. Mooney, Michael James Hardy
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Patent number: 9633683Abstract: An apparatus includes a write head comprising a near-field transducer at a media-facing surface of the write head and a waveguide extending along a light-propagation direction. The waveguide is configured to receive light emitted from a light source at a fundamental transverse electric mode. The waveguide is configured to deliver the light to the near-field transducer at a transverse magnetic mode which directs surface plasmons to a recording medium in response thereto. The waveguide comprises a core with first and second tapers separated by a straight portion of constant cross sectional width. The first and second tapers successively decrease a cross-sectional width of the core as it nears the near-field transducer. The waveguide includes an end portion between the second taper and the near field transducer. The end portion comprises a top cladding layer, aside cladding layer, and a bottom cladding layer on the side cladding layer.Type: GrantFiled: February 19, 2015Date of Patent: April 25, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Tae-Woo Lee, Yi-Kuei Ryan Wu, Pierre Asselin, Werner Scholz
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Patent number: 9607638Abstract: A recording head includes a layer of plasmonic metal deposited on a surface of the recording head. One or more non-self-supporting layers of crystalline material are attached to the plasmonic metal, the one or more layers of crystalline materials configured to form an active region of a laser. A waveguide is configured to receive plasmons from the laser and direct the plasmons to a recording medium.Type: GrantFiled: November 19, 2015Date of Patent: March 28, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Scott Eugene Olson, Karim Tatah, Yi-Kuei Ryan Wu, Mark Gubbins, Marcus B. Mooney, Michael J. Hardy
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Publication number: 20160247525Abstract: An apparatus includes a write head comprising a near-field transducer at a media-facing surface of the write head and a waveguide extending along a light-propagation direction. The waveguide is configured to receive light emitted from a light source at a fundamental transverse electric mode. The waveguide is configured to deliver the light to the near-field transducer at a transverse magnetic mode which directs surface plasmons to a recording medium in response thereto. The waveguide comprises a core with first and second tapers separated by a straight portion of constant cross sectional width. The first and second tapers successively decrease a cross-sectional width of the core as it nears the near-field transducer. The waveguide includes an end portion between the second taper and the near field transducer. The end portion comprises a top cladding layer, aside cladding layer, and a bottom cladding layer on the side cladding layer.Type: ApplicationFiled: February 19, 2015Publication date: August 25, 2016Inventors: Tae-Woo Lee, Yi-Kuei Ryan Wu, Pierre Asselin, Werner Scholz
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Patent number: 9153277Abstract: Near field transducers (NFTs) and devices that include a peg having an air bearing region and an opposing back region, the back region including a sacrificial structure, a disc having a first surface in contact with the peg, and a barrier structure, the barrier structure positioned between the opposing back region of the peg and the first surface of the disc.Type: GrantFiled: November 7, 2014Date of Patent: October 6, 2015Assignee: Seagate Technology LLCInventors: Tong Zhao, Xiaoyue Huang, Michael C. Kautzky, Hui Brickner, Yi-Kuei Ryan Wu
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Patent number: 9047912Abstract: A write head includes a three-dimensional waveguide extending along a light-propagation direction. The three-dimensional waveguide is configured to receive light from a light source at a fundamental transverse electric (TE) mode. The three-dimensional waveguide includes an input coupler, a curved middle section, and a terminating end. The input coupler is tapered between the light source and the curved middle section. The write head includes a dual-mode waveguide extending along the light propagation direction and has an edge proximate to and separated from the curved section by a gap at a coupling region. The three-dimensional waveguide excites a higher-order TE mode in the dual-mode waveguide via the coupling region.Type: GrantFiled: September 22, 2014Date of Patent: June 2, 2015Assignee: SEAGATE TECHNOLOGY LLCInventors: Chubing Peng, Yi-Kuei Ryan Wu
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Publication number: 20150131417Abstract: Near field transducers (NFTs) and devices that include a peg having an air bearing region and an opposing back region, the back region including a sacrificial structure, a disc having a first surface in contact with the peg, and a barrier structure, the barrier structure positioned between the opposing back region of the peg and the first surface of the disc.Type: ApplicationFiled: November 7, 2014Publication date: May 14, 2015Inventors: Tong Zhao, Xiaoyue Huang, Michael C. Kautzky, Hui Brickner, Yi-Kuei Ryan Wu