Despeckling in Optical Measurement Systems
    11.
    发明公开

    公开(公告)号:US20240102856A1

    公开(公告)日:2024-03-28

    申请号:US18234794

    申请日:2023-08-16

    Applicant: Apple Inc.

    CPC classification number: G01J1/44 G02B6/43 G01J2001/444

    Abstract: Embodiments are directed to optical measurement systems that utilize multiple emitters to emit light during a measurement, as well as methods of performing measurements using these optical measurement systems. The optical measurement systems may include a light generation assembly that is configured to generate light via a light source unit, and a photonic integrated circuit that includes a launch group having a plurality of emitters. Each of these emitters is optically coupled to the light generation assembly to receive light generated from the light generation assembly, and may emit this light from a surface of the photonic integrated circuit. The optical measurement system may perform a measurement in which the light generation assembly generates light and each of the plurality of emitters simultaneously emit light received from the light generation assembly.

    Compact Optical Phase Shifter
    12.
    发明公开

    公开(公告)号:US20240094566A1

    公开(公告)日:2024-03-21

    申请号:US18230098

    申请日:2023-08-03

    Applicant: Apple Inc.

    CPC classification number: G02F1/025 G02F1/0151

    Abstract: Embodiments are directed to photonic integrated circuits that include a carrier-based phase shifter. The carrier-based phase shifter is configured as a PIN phase shifter with a pair of traces that delivers current through a PIN diode. The PIN phase shifter is configured such that current flows through the pair of traces in a common direction.

    Optical Measurement System with Multiple Launch Sites

    公开(公告)号:US20230324286A1

    公开(公告)日:2023-10-12

    申请号:US18121427

    申请日:2023-03-14

    Applicant: Apple Inc.

    CPC classification number: G01N21/31

    Abstract: Various embodiments disclosed herein describe optical measurement systems for characterizing a sample. The optical measurement systems may selectively emit light from different numbers of launch groups, and may include a multi-stage optical switch network that may be controlled to route light to a desired number of launch groups. The optical measurement systems may further measure light using a corresponding number of detector groups. The optical measurement systems may perform measurements using a plurality of different wavelengths, where different groups of these wavelengths may be measured using different numbers of launch groups (as well as corresponding detector groups).

    Integrated photonics device having integrated edge outcouplers

    公开(公告)号:US11226459B2

    公开(公告)日:2022-01-18

    申请号:US16969034

    申请日:2019-02-13

    Applicant: Apple Inc.

    Abstract: Described herein is an integrated photonics device including a light emitter, integrated edge outcoupler(s), optics, and a detector array. The device can include a hermetically sealed enclosure. The hermetic seal can reduce the amount of moisture and/or contamination that may affect the measurement, analysis, and/or the function of the individual components within the sealed enclosure. Additionally or alternatively, the hermetic seal can be used to protect the components within the enclosure from environmental contamination induced during the manufacturing, packaging, and/or shipping process. The outcoupler(s) can be formed by creating one or more pockets in the layers of a die. Outcoupler material can be formed in the pocket and, optionally, subsequent layers can be deposited on top. The edge of the die can be polished until a targeted polish plane is achieved. Once the outcoupler is formed, the die can be flipped over and other components can be formed.

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