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公开(公告)号：US11906778B2
公开(公告)日：2024-02-20
申请号：US17479943
申请日：2021-09-20
Applicant: Apple Inc.
Inventor： Mark Alan Arbore , Yi-Kuei Wu
CPC classification number: G02B6/12007 , G02B27/1006 , G02B6/2808
Abstract: Configurations for an optical splitter are disclosed. The optical splitter may include an input waveguide, a free propagation region, and an array of output waveguides. The input waveguide may be sufficiently narrow that the light in the free propagation region may diffract and provide the same optical intensity at far field angles across a wide wavelength range. The input waveguide may have a high V number in a vertical dimension and a low V number in a horizontal dimension. Because all of the wavelengths of light diffract at the same angle in the free propagation region, once the light reaches the output waveguides, the light may have similar optical power at each of the output waveguides. Additionally, the output waveguides may vary in width and spacing to mitigate the non-uniform optical power distribution of the phase front of light.
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公开(公告)号：US11852318B2
公开(公告)日：2023-12-26
申请号：US17470916
申请日：2021-09-09
Applicant: Apple Inc.
Inventor： Mark Alan Arbore , Matthew A. Terrel
IPC: G02B27/48 , G02B5/02 , G01N21/01 , F21V14/00 , F21V3/00 , F21V5/00 , F21V5/04 , G02B27/30 , G02B19/00
CPC classification number: F21V14/00 , F21V3/00 , F21V5/007 , F21V5/043 , G02B19/0057 , G02B27/30 , G02B27/48 , G01N21/01
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：US11777279B2
公开(公告)日：2023-10-03
申请号：US17478670
申请日：2021-09-17
Applicant: Apple Inc.
Inventor： Alfredo Bismuto , Mark Alan Arbore , Ross M. Audet
CPC classification number: H01S5/4087 , H01S5/04256 , H01S5/162 , H01S5/2059 , H01S5/2228 , H01S5/3414
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：US20230266243A1
公开(公告)日：2023-08-24
申请号：US18108416
申请日：2023-02-10
Applicant: Apple Inc.
Inventor： Mark Alan Arbore , Matthew A. Terrel , Jason Pelc
IPC: G01N21/49
CPC classification number: G01N21/49 , G01N2021/4711
Abstract: Described here are optical sampling architectures and methods for operation thereof. An optical sampling architecture can be capable of emitting a launch sheet light beam towards a launch region and receiving a detection sheet light beam from a detection region. The launchregion can have one dimension that is elongated relative to another dimension. The detection region can also have one dimension elongated relative to another dimension such that the system can selectively accept light having one or more properties (e.g., angle of incidence, beam size, beam shape, etc.). In some examples, the elongated dimension of the detection region can be greater than the elongated dimension of the launch region. In some examples, the system can include an outcoupler array and associated components for creating a launch sheet light beam having light rays with different in-plane launch positions and/or in-plane launch angles.
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公开(公告)号：US20230163573A1
公开(公告)日：2023-05-25
申请号：US18094797
申请日：2023-01-09
Applicant: Apple Inc.
Inventor： Mark Alan Arbore , Gary Shambat , Miikka M. Kangas , Ross M. Audet , Jeffrey G. Koller
IPC: H01S5/40 , H01S5/024 , G01J3/10 , H01S5/02 , H01S5/125 , H01S5/068 , H01S5/026 , H01S5/0625 , H01S5/02325
CPC classification number: H01S5/4087 , H01S5/02453 , G01J3/10 , H01S5/0206 , H01S5/125 , H01S5/06804 , H01S5/021 , H01S5/0261 , H01S5/06256 , H01S5/02325
Abstract: Integrated laser sources emitting multi-wavelengths of light with reduced thermal transients and crosstalk and methods for operating thereof are disclosed. The integrated laser sources can include one or more heaters and a temperature control system to maintain a total thermal load of the gain segment, the heater(s), or both of a given laser to be within a range based on a predetermined target value. The system can include electrical circuitry configured to distribute current to the gain segment, the heater(s), or both. The heater(s) can be located proximate to the gain segment, and the distribution of current can be based on the relative locations. In some examples, the central laser can be heated prior to being activated. In some examples, one or more of the plurality of lasers can operate in a subthreshold operation mode when the laser is not lasing to minimize thermal perturbations to proximate lasers.
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Patent Agency Ranking
公开(公告)号：US11585749B2
公开(公告)日：2023-02-21
申请号：US17063483
申请日：2020-10-05
Applicant: Apple Inc.
Inventor： Miikka M. Kangas , Mark Alan Arbore , David I. Simon , Michael J. Bishop , James W. Hillendahl , Robert Chen
IPC: G01N21/27 , G01N21/35 , G01N21/47 , G01J3/32 , G01J3/36 , G01J3/433 , G01J3/447 , G01J3/02 , G01J3/42 , G01N21/49 , G01N21/21
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：US11579080B2
公开(公告)日：2023-02-14
申请号：US16650804
申请日：2018-09-27
Applicant: Apple Inc.
Inventor： Mark Alan Arbore , Matthew A. Terrel , Jason Pele
Abstract: Described here are optical sampling architectures and methods for operation thereof. An optical sampling architecture can be capable of emitting a launch sheet light beam towards a launch region and receiving a detection sheet light beam from a detection region. The launch region can have one dimension that is elongated relative to another dimension. The detection region can also have one dimension elongated relative to another dimension such that the system can selectively accept light having one or more properties (e.g., angle of incidence, beam size, beam shape, etc.). In some examples, the elongated dimension of the detection region can be greater than the elongated dimension of the launch region. In some examples, the system can include an outcoupler array and associated components for creating a launch sheet light beam having light rays with different in-plane launch positions and/or in-plane launch angles.
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公开(公告)号：US11552454B1
公开(公告)日：2023-01-10
申请号：US16142676
申请日：2018-09-26
Applicant: Apple Inc.
Inventor： Mark Alan Arbore , Gary Shambat , Miikka M. Kangas , Ross M. Audet , Jeffrey G. Koller
IPC: H01S5/024 , H01S5/40 , G01J3/10 , H01S5/02 , H01S5/125 , H01S5/068 , H01S5/026 , H01S5/0625 , H01S5/02325
Abstract: Integrated laser sources emitting multi-wavelengths of light with reduced thermal transients and crosstalk and methods for operating thereof are disclosed. The integrated laser sources can include one or more heaters and a temperature control system to maintain a total thermal load of the gain segment, the heater(s), or both of a given laser to be within a range based on a predetermined target value. The system can include electrical circuitry configured to distribute current to the gain segment, the heater(s), or both. The heater(s) can be located proximate to the gain segment, and the distribution of current can be based on the relative locations. In some examples, the central laser can be heated prior to being activated. In some examples, one or more of the plurality of lasers can operate in a subthreshold operation mode when the laser is not lasing to minimize thermal perturbations to proximate lasers.
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公开(公告)号：US11469570B2
公开(公告)日：2022-10-11
申请号：US16740331
申请日：2020-01-10
Applicant: Apple Inc.
Inventor： Ross M. Audet , Mark Alan Arbore , Alfredo Bismuto , Yves Bidaux , Antoine Jean André Müller
IPC: H01S5/0683 , H01S5/06 , H01S5/12 , H01S5/125 , H01S5/024 , H01S5/026 , H01S5/14 , H01S5/0625 , H01S5/0687 , H01S5/227 , H01S5/0234
Abstract: Methods for driving a tunable laser with integrated tuning elements are disclosed. The methods can include modulating the tuning current and laser injection current such that the laser emission wavelength and output power are independently controllable. In some examples, the tuning current and laser injection current are modulated simultaneously and a wider tuning range can result. In some examples, one or both of these currents is sinusoidally modulated. In some examples, a constant output power can be achieved while tuning the emission wavelength. In some examples, the output power and tuning can follow a linear relationship. In some examples, injection current and tuning element drive waveforms necessary to achieve targeted output power and tuning waveforms can be achieved through optimization based on goodness of fit values between the targeted and actual output power and tuning waveforms.
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公开(公告)号：US11437779B2
公开(公告)日：2022-09-06
申请号：US15570683
申请日：2016-04-27
Applicant: Apple Inc.
Inventor： Ross M. Audet , Mark Alan Arbore , Alfredo Bismuto , Yves Bidaux , Camille Tardy , Tobias Gresch , Antoine Jean André Müller
IPC: H01S5/0625 , H01S5/125 , H01S5/12 , H01S5/06 , H01S5/0683 , H01S5/34
Abstract: Disclosed is a Vernier effect DBR laser that has uniform laser injection current pumping along the length of the laser. The laser can include one or more tuning elements, separate from the laser injection element, and these tuning elements can be used to control the temperature or modal refractive index of one or more sections of the laser. The refractive indices of each diffraction grating can be directly controlled by temperature changes, electro optic effects, or other means through the one or more tuning elements. With direct control of the temperature and/or refractive indices of the diffraction gratings, the uniformly pumped Vernier effect DBR laser can be capable of a wider tuning range. Additionally, uniform pumping of the laser through a single electrode can reduce or eliminate interfacial reflections caused by, for example, gaps between metal contacts atop the laser ridge, which can minimize multi-mode operation and mode hopping.
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