OPTICAL SENSOR MODULE AND PACKAGING METHOD THEREOF

    公开(公告)号:US20230228619A1

    公开(公告)日:2023-07-20

    申请号:US18067066

    申请日:2022-12-16

    CPC classification number: G01J1/0271 G01J1/0459 G01J1/0474 G01J2001/0276

    Abstract: An optical sensor module and a packaging method thereof are disclosed, wherein the optical sensor module comprises a substrate having a light sensing element; and a housing made of a transparent material. The housing is connected to the substrate and covers the light sensing element. The housing has a light-receiving area facing the light sensing element, and the inner surface of the housing toward the substrate is provided with a light-shielding coating in a portion outside of the light-receiving area. In this way, optical components such as the light sensor can be effectively protected, and still retain the effect of avoiding noise light interference with the light sensor module.

    Optical device metrology systems and related methods

    公开(公告)号:US11802791B2

    公开(公告)日:2023-10-31

    申请号:US17456421

    申请日:2021-11-24

    CPC classification number: G01J1/0459 G01J1/0425 G01J1/08

    Abstract: A method of optical device metrology is provided. The method includes providing a first type of light into a first optical device during a first time period; measuring a quantity of the first type of light transmitted from a first location on the top surface or the bottom surface during the first time period; coating at least a portion of an edge of the one or more edges with a first coating of optically absorbent material during a second time period that occurs after the first time period; providing the first type of light into the first optical device during a third time period that occurs after the second time period; and measuring a quantity of the first type of light transmitted from the first location on the top surface or the bottom surface during the third time period.

    Integrated quantum-random noise generator using quantum vacuum states of light

    公开(公告)号:US09965250B2

    公开(公告)日:2018-05-08

    申请号:US14362869

    申请日:2012-12-07

    Abstract: An integrated quantum random noise source includes a substrate, an optical oscillator that may be integral to the substrate coupled by an optical waveguide to an optical directional coupler. The optical directional coupler has two outputs that are coupled by optical waveguides to a pair of photodetectors that are part of a balanced photodetector. The balanced photodetector in response outputs an analog signal proportional to the difference in photocurrents of the two photodetectors. The analog output signal from the balanced photodetector is a random Gaussian-distributed signal representative of quadrature measurements on the quantum vacuum state of light. The random noise source can be coupled other apparatus to provide a source of random bits.

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