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公开(公告)号：US12111210B2
公开(公告)日：2024-10-08
申请号：US17859912
申请日：2022-07-07
Applicant: Apple Inc.
Inventor： Mark Alan Arbore , Thomas C. Greening , Yongming Tu
IPC: G01J3/02 , G01J3/10 , G01J3/18 , G01J3/32 , G01J3/45 , G02B6/293 , G02B6/42 , G02B27/10 , G02F1/21
CPC classification number: G01J3/0297 , G01J3/10 , G01J3/108 , G01J3/1809 , G01J3/32 , G01J3/45 , G02B6/2938 , G02B6/4215 , G02B27/10 , G01J2003/102 , G02F1/212
Abstract: Configurations for light source modules and methods for mitigating coherent noise are disclosed. The light source modules may include multiple light source sets, each of which may include multiple light sources. The light emitted by the light sources may be different wavelengths or the same wavelength depending on whether the light source module is providing redundancy of light sources, increased power, coherent noise mitigation, and/or detector mitigation. In some examples, the light source may emit light to a coupler or a multiplexer, which may then be transmitted to one or more multiplexers. In some examples, the light source modules provide one light output and in other examples, the light source modules provide two light outputs. The light source modules may provide light with approximately zero loss and the wavelengths of light may be close enough to spectroscopically equivalent respect to a sample and far enough apart to provide coherent noise mitigation.
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公开(公告)号：US11886007B2
公开(公告)日：2024-01-30
申请号：US17985615
申请日：2022-11-11
Applicant: Apple Inc.
Inventor： Yi-Kuei Wu , Yongming Tu , Alfredo Bismuto , Andrea Trita , Yangyang Liu
CPC classification number: G02B6/1228 , G02B6/12004 , G02B27/10
Abstract: A waveguide structure and a method for splitting light is described. The method may include optically coupling a first waveguide and a second waveguide, where the optical coupling may be wavelength insensitive. The widths of the first and second waveguides may be non-adiabatically varying and the optical coupling may be asymmetric between the first and second waveguides. A gap between the first and second waveguides may also be varied non-adiabatically and the gap may depend on the widths of the first and second waveguides. The optical coupling between the first and second waveguides may also occur in the approximate wavelength range of 800 nanometers to 1700 nanometers.
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公开(公告)号：US11231319B1
公开(公告)日：2022-01-25
申请号：US17014015
申请日：2020-09-08
Applicant: Apple Inc.
Inventor： Yongming Tu , Alfredo Bismuto
Abstract: Configurations for a diffraction grating design that mitigates thermal wavelength shifts and corresponding methods thereof are disclosed. The wavelength stability monitoring system may include a planar waveguide that receives input light directed toward a diffraction grating. The diffraction grating may reflect the light back through the planar waveguide and to one or more detectors. The planar waveguide may include multiple materials, such as a first material and a second athermal material that is adjacent to the first material. The athermal material may mitigate thermal wavelength shifts of the light. The design of the athermal material may include targeting a ratio of the input and output path lengths across sets of input and output angles of light that pass through the first material and the second athermal material. In some examples, the output waveguides may be positioned to receive leakage modes of light.
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公开(公告)号：US20230089758A1
公开(公告)日：2023-03-23
申请号：US17949066
申请日：2022-09-20
Applicant: Apple Inc.
Inventor： Yongming Tu , Jeremy D. Witmer , Huiyang Deng , Mark A. Arbore , Mohsen Kamandar Dezfouli , Alfredo Bismuto , Petr Markov
Abstract: Configurations for an optical system used for guiding light and reducing back-reflection back in an output waveguide is disclosed. The optical system may include an output waveguide defined in a slab waveguide. The output waveguide may terminate before an output side of the slab waveguide, which may reduce the back-reflection of light from the output side back into the output waveguide. The output side may define an optical element that may steer the output light. The optical element may collimate the output light, cause the output light to converge, or cause the output light to diverge.
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公开(公告)号：US20230071329A1
公开(公告)日：2023-03-09
申请号：US17985615
申请日：2022-11-11
Applicant: Apple Inc.
Inventor： Yi-Kuei Wu , Yongming Tu , Alfredo Bismuto , Andrea Trita , Yangyang Liu
Abstract: A waveguide structure and a method for splitting light is described. The method may include optically coupling a first waveguide and a second waveguide, where the optical coupling may be wavelength insensitive. The widths of the first and second waveguides may be non-adiabatically varying and the optical coupling may be asymmetric between the first and second waveguides. A gap between the first and second waveguides may also be varied non-adiabatically and the gap may depend on the widths of the first and second waveguides. The optical coupling between the first and second waveguides may also occur in the approximate wavelength range of 800 nanometers to 1700 nanometers.
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Patent Agency Ranking
公开(公告)号：US20230012376A1
公开(公告)日：2023-01-12
申请号：US17859912
申请日：2022-07-07
Applicant: Apple Inc.
Inventor： Mark Alan Arbore , Thomas C. Greening , Yongming Tu
Abstract: Configurations for light source modules and methods for mitigating coherent noise are disclosed. The light source modules may include multiple light source sets, each of which may include multiple light sources. The light emitted by the light sources may be different wavelengths or the same wavelength depending on whether the light source module is providing redundancy of light sources, increased power, coherent noise mitigation, and/or detector mitigation. In some examples, the light source may emit light to a coupler or a multiplexer, which may then be transmitted to one or more multiplexers. In some examples, the light source modules provide one light output and in other examples, the light source modules provide two light outputs. The light source modules may provide light with approximately zero loss and the wavelengths of light may be close enough to spectroscopically equivalent respect to a sample and far enough apart to provide coherent noise mitigation.
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公开(公告)号：US20250027813A1
公开(公告)日：2025-01-23
申请号：US18908626
申请日：2024-10-07
Applicant: Apple Inc.
Inventor： Mark Alan Arbore , Thomas C. Greening , Yongming Tu
IPC: G01J3/02 , G01J3/10 , G01J3/18 , G01J3/32 , G01J3/45 , G02B6/293 , G02B6/42 , G02B27/10 , G02F1/21
Abstract: Configurations for light source modules and methods for mitigating coherent noise are disclosed. The light source modules may include multiple light source sets, each of which may include multiple light sources. The light emitted by the light sources may be different wavelengths or the same wavelength depending on whether the light source module is providing redundancy of light sources, increased power, coherent noise mitigation, and/or detector mitigation. In some examples, the light source may emit light to a coupler or a multiplexer, which may then be transmitted to one or more multiplexers. In some examples, the light source modules provide one light output and in other examples, the light source modules provide two light outputs. The light source modules may provide light with approximately zero loss and the wavelengths of light may be close enough to spectroscopically equivalent respect to a sample and far enough apart to provide coherent noise mitigation.
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公开(公告)号：US11561346B2
公开(公告)日：2023-01-24
申请号：US17386297
申请日：2021-07-27
Applicant: Apple Inc.
Inventor： Yongming Tu , Alfredo Bismuto
Abstract: Configurations for a tunable Echelle grating are disclosed. The tunable Echelle grating may include an output waveguide centered in a waveguide array, with input waveguides on both sides of the output waveguide. A metal tuning pad may be located over the slab waveguide and may be heated to induce a temperature change in the slab waveguide. By increasing the temperature of the propagation region of the slab waveguide, the index of refraction may shift, thus causing the peak wavelength of the channel to shift. This may result in an optical component capable of multiplexing multiple light sources in an energy efficient manner while maintaining a small form factor.
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公开(公告)号：US11506535B1
公开(公告)日：2022-11-22
申请号：US17014902
申请日：2020-09-08
Applicant: Apple Inc.
Inventor： Yongming Tu , Alfredo Bismuto
Abstract: Configurations for a diffraction grating design and methods thereof are disclosed. The diffraction grating system can include an input waveguide located at a first location on or near a Rowland circle and multiple output waveguides located at a second and third location on or near the Rowland circle. The input waveguide may be located between the output waveguides and this configuration of input and output waveguides can reduce the footprint size of the device. In some examples, the optical component can function as a de-multiplexer. Additionally, the optical component may separate the input wavelength band into two output wavelength bands which are separated from one another by approximately 0.1 μm.
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公开(公告)号：US20240094592A1
公开(公告)日：2024-03-21
申请号：US18526269
申请日：2023-12-01
Applicant: Apple Inc.
Inventor： Yi-Kuei Wu , Jason Pelc , Mark Alan Arbore , Thomas C. Greening , Matthew A. Terrel , Yongming Tu , Mohamed Mahmoud
IPC: G02F1/21
Abstract: Disclosed herein is an integrated photonics device including an on-chip wavelength stability monitor. The wavelength stability monitor may include one or more interferometric components, such as Mach-Zehnder interferometers and can be configured to select among the output signals from the interferometric components for monitoring the wavelength emitted by a corresponding photonic component, such as a light source. The selection may be based on a slope of the output signal and in some examples may correspond to a working zone at or around a wavelength or wavelength range. In some examples, the interferometric components can be configured with different phase differences such that the corresponding working zones have different wavelengths. In some examples, the slopes of the output signals may be weighted based on the steepness of the slope and all of the output signals may include information for wavelength locking the measured wavelength to the target wavelength.
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