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公开(公告)号:US20240288306A1
公开(公告)日:2024-08-29
申请号:US18655689
申请日:2024-05-06
Applicant: Apple Inc.
Inventor: Mark Alan Arbore , Gary Shambat , Matthew A. Terrel
CPC classification number: G01J3/0229 , G01J3/0205 , G01J3/0216 , G01J3/0256 , G01J3/0294 , G01J3/10 , G01J3/108 , G01J3/36 , G01J3/42 , G01N21/25 , G01N21/49 , G01N2021/4711
Abstract: Systems and methods for determining one or more properties of a sample are disclosed. The systems and methods disclosed can be capable of measuring along multiple locations and can reimage and resolve multiple optical paths within the sample. The system can be configured with one-layer or two-layers of optics suitable for a compact system. The optics can be simplified to reduce the number and complexity of the coated optical surfaces, etalon effects, manufacturing tolerance stack-up problems, and interference-based spectroscopic errors. The size, number, and placement of the optics can enable multiple simultaneous or non-simultaneous measurements at various locations across and within the sample. Moreover, the systems can be configured with an optical spacer window located between the sample and the optics, and methods to account for changes in optical paths due to inclusion of the optical spacer window are disclosed.
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公开(公告)号:US20230314321A1
公开(公告)日:2023-10-05
申请号:US18205551
申请日:2023-06-04
Applicant: Apple Inc.
Inventor: Mark Alan Arbore , Matthew A. Terrel
CPC classification number: G01N21/59 , G01N21/49 , G01N2021/1782
Abstract: An illuminator/collector assembly can deliver incident light to a sample and collect return light returning from the sample. A sensor can measure ray intensities as a function of ray position and ray angle for the collected return light. A ray selector can select a first subset of rays from the collected return light at the sensor that meet a first selection criterion. In some examples, the ray selector can aggregate ray intensities into bins, each bin corresponding to rays in the collected return light that traverse within the sample an estimated optical path length within a respective range of optical path lengths. A characterizer can determine a physical property of the sample, such as absorptivity, based on the ray intensities, ray positions, and ray angles for the first subset of rays. Accounting for variations in optical path length traversed within the sample can improve accuracy.
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公开(公告)号:US11740126B2
公开(公告)日:2023-08-29
申请号:US17351067
申请日:2021-06-17
Applicant: Apple Inc.
Inventor: Trent D. Ridder , Mark Alan Arbore , Gary Shambat , Robert Chen , David I. Simon , Miikka M. Kangas
CPC classification number: G01J3/427 , G01J3/06 , G01J3/10 , G01J3/108 , G01J3/2803 , G01J3/2846 , G01J3/42 , G01N21/25 , G01N21/35
Abstract: Methods and systems for measuring one or more properties of a sample are disclosed. The methods and systems can include multiplexing measurements of signals associated with a plurality of wavelengths without adding any signal independent noise and without increasing the total measurement time. One or more levels of encoding, where, in some examples, a level of encoding can be nested within one or more other levels of encoding. Multiplexing can include wavelength, position, and detector state multiplexing. In some examples, SNR can be enhanced by grouping together one or more signals based on one or more properties including, but not limited to, signal intensity, drift properties, optical power detected, wavelength, location within one or more components, material properties of the light sources, and electrical power. In some examples, the system can be configured for optimizing the conditions of each group individually based on the properties of a given group.
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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:US11041758B2
公开(公告)日:2021-06-22
申请号:US16095323
申请日:2017-04-13
Applicant: Apple Inc.
Inventor: Trent D. Ridder , Mark Alan Arbore , Gary Shambat , Robert Chen , David I. Simon , Miikka M. Kangas
Abstract: Methods and systems for measuring one or more properties of a sample are disclosed. The methods and systems can include multiplexing measurements of signals associated with a plurality of wavelengths without adding any signal independent noise and without increasing the total measurement time. One or more levels of encoding, where, in some examples, a level of encoding can be nested within one or more other levels of encoding. Multiplexing can include wavelength, position, and detector state multiplexing. In some examples, SNR can be enhanced by grouping together one or more signals based on one or more properties including, but not limited to, signal intensity, drift properties, optical power detected, wavelength, location within one or more components, material properties of the light sources, and electrical power. In some examples, the system can be configured for optimizing the conditions of each group individually based on the properties of a given group.
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公开(公告)号:US12300974B2
公开(公告)日:2025-05-13
申请号:US18244752
申请日:2023-09-11
Applicant: Apple Inc.
Inventor: Alfredo Bismuto , Mark Alan Arbore , Ross M. Audet
Abstract: A laser chip including a plurality of stripes is disclosed, where a laser stripe can be grown with an initial optical gain profile, and its optical gain profile can be shifted by using an intermixing process. In this manner, multiple laser stripes can be formed on the same laser chip from the same epitaxial wafer, where at least one laser stripe can have an optical gain profile shifted relative to another laser stripe. For example, each laser stripe can have a shifted optical gain profile relative to its neighboring laser stripe, thereby each laser stripe can emit light with a different range of wavelengths. The laser chip can emit light across a wide range of wavelengths. Examples of the disclosure further includes different regions of a given laser stripe having different intermixing amounts.
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公开(公告)号:US20240410822A1
公开(公告)日:2024-12-12
申请号:US18808482
申请日:2024-08-19
Applicant: Apple Inc.
Inventor: Miikka M. Kangas , Mark Alan Arbore , David I. Simon , Michael J. Bishop , James W. Hillendahl , Robert Chen
IPC: G01N21/27 , G01J3/02 , G01J3/32 , G01J3/36 , G01J3/42 , G01J3/433 , G01J3/447 , G01N21/21 , G01N21/35 , G01N21/47 , G01N21/49
Abstract: This relates to systems and methods for measuring a concentration and type of substance in a sample at a sampling interface. The systems can include a light source, optics, one or more modulators, a reference, a detector, and a controller. The systems and methods disclosed can be capable of accounting for drift originating from the light source, one or more optics, and the detector by sharing one or more components between different measurement light paths. Additionally, the systems can be capable of differentiating between different types of drift and eliminating erroneous measurements due to stray light with the placement of one or more modulators between the light source and the sample or reference. Furthermore, the systems can be capable of detecting the substance along various locations and depths within the sample by mapping a detector pixel and a microoptics to the location and depth in the sample.
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公开(公告)号:US12140291B2
公开(公告)日:2024-11-12
申请号:US18543225
申请日:2023-12-18
Applicant: Apple Inc.
Inventor: Mark Alan Arbore , Matthew A. Terrel
IPC: G02B27/48 , F21V3/00 , F21V5/00 , F21V5/04 , F21V14/00 , G01N21/01 , G02B5/02 , G02B19/00 , G02B27/30
Abstract: Configurations for a photonics assembly design and methods for mitigating coherent noise thereof are disclosed. The photonics assembly may include a set of light sources, an optical subsystem that may include a set of optical elements, and a diffusing element. The light emitted by the set of light sources may be different wavelengths and the light may be de-cohered by a phase shifter before being received by the set of optical elements. The diffusing element may be moveable and may be capable of repeating the same positions or set of positions for each beam of light emitted by the set of light sources. By combining the coherent noise mitigation techniques of the moveable diffusing element and the de-cohered light, the photonics system may provide an illumination profile with a specific spatial profile and angular profile on the sample that allows reliable measurement of the sample and coherent noise mitigation.
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公开(公告)号:US12125865B2
公开(公告)日:2024-10-22
申请号:US17464550
申请日:2021-09-01
Applicant: Apple Inc.
Inventor: Daniel Mahgerefteh , Mark Alan Arbore , Matthew T. Morea , Romain F. Chevallier , Yung-Yu Hsu
IPC: H01L31/00 , G01J5/0808 , H01L27/146 , H01L31/0232
CPC classification number: H01L27/14625 , G01J5/0808 , H01L27/1464 , H01L27/14649 , H01L31/02327
Abstract: An electromagnetic radiation detector pixel includes a set of epitaxial layers and a lens. The set of epitaxial layers defines an electromagnetic radiation absorber. The lens is directly bonded to the set of epitaxial layers.
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公开(公告)号:US11835836B1
公开(公告)日:2023-12-05
申请号:US17015974
申请日:2020-09-09
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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