PHOTONIC INTEGRATED CIRCUIT DEVICES AND METHODS OF FORMING SAME

    公开(公告)号:US20210103094A1

    公开(公告)日:2021-04-08

    申请号:US17102978

    申请日:2020-11-24

    Abstract: A photonic integrated circuit device includes a semiconductor substrate (e.g., wafer) having a chip region therein, which is bounded on at least one side thereof by a scribe line. The chip region includes an optical transmitter, an optical receiver and a test optical waveguide. This test optical waveguide is coupled to the optical transmitter and the optical receiver and overlaps the scribe line. During a substrate dicing operation, a portion of the test optical waveguide overlapping the scribe line is removed.

    MEMORY CONTROLLER, MEMORY SYSTEM INCLUDING THE SAME, AND ELECTRONIC DEVICE INCLUDING THE MEMORY SYSTEM
    13.
    发明申请
    MEMORY CONTROLLER, MEMORY SYSTEM INCLUDING THE SAME, AND ELECTRONIC DEVICE INCLUDING THE MEMORY SYSTEM 有权
    存储器控制器,包括其的存储器系统以及包括存储器系统的电子设备

    公开(公告)号:US20160099781A1

    公开(公告)日:2016-04-07

    申请号:US14791356

    申请日:2015-07-03

    CPC classification number: G11C7/1081 G11C7/1054

    Abstract: A memory system in accordance with an embodiment of the inventive concept includes a memory controller comprising a controller optical transmission unit photoelectrically-converting a data signal to output a first optical modulation signal and a second optical modulation signal, a first memory device which is optically connected with the memory controller to receive the first optical modulation signal, and a second memory device which is optically connected with the memory controller to receive the second optical modulation signal. The first optical modulation signal and the second optical modulation signal are complementary to each other.

    Abstract translation: 根据本发明构思的实施例的存储器系统包括存储器控制器,其包括光电转换数据信号以输出第一光调制信号和第二光调制信号的控制器光传输单元,光学连接的第一存储器件 存储器控制器接收第一光调制信号,以及与存储器控制器光学连接以接收第二光调制信号的第二存储器件。 第一光调制信号和第二光调制信号彼此互补。

    Optical isolator and photonic integrated circuit including the same

    公开(公告)号:US12153254B2

    公开(公告)日:2024-11-26

    申请号:US18114772

    申请日:2023-02-27

    Abstract: Provided is an optical isolator including a semiconductor substrate, an optical attenuator and an optical amplifier aligned with each other on the semiconductor substrate, an input optical waveguide connected to the optical attenuator, and an output optical waveguide connected to the optical amplifier, wherein a gain of the optical amplifier decreases based on an intensity of light incident on the optical amplifier increasing, wherein a first input light incident on the optical attenuator through the input optical waveguide is output as a first output light through the output optical waveguide, and a second input light incident on the optical amplifier through the output optical waveguide is output as a second output light through the input optical waveguide, and wherein when an intensity of the first input light and an intensity of the second input light are equal, an intensity of the first output light is greater than an intensity of the second output light.

    Optical isolator and photonic integrated circuit including the same

    公开(公告)号:US11630262B2

    公开(公告)日:2023-04-18

    申请号:US17357503

    申请日:2021-06-24

    Abstract: Provided is an optical isolator including a semiconductor substrate, an optical attenuator and an optical amplifier aligned with each other on the semiconductor substrate, an input optical waveguide connected to the optical attenuator, and an output optical waveguide connected to the optical amplifier, wherein a gain of the optical amplifier decreases based on an intensity of light incident on the optical amplifier increasing, wherein a first input light incident on the optical attenuator through the input optical waveguide is output as a first output light through the output optical waveguide, and a second input light incident on the optical amplifier through the output optical waveguide is output as a second output light through the input optical waveguide, and wherein when an intensity of the first input light and an intensity of the second input light are equal, an intensity of the first output light is greater than an intensity of the second output light.

    Optical modulating device and apparatus including the same

    公开(公告)号:US11611397B1

    公开(公告)日:2023-03-21

    申请号:US17699553

    申请日:2022-03-21

    Abstract: Provided is an optical modulating device including a substrate including first and second trenches, a phase modulator in a region of the substrate, the phase modulator including an undoped region provided between the first and the second trenches, and first and a second doped regions which are apart from each other with the undoped region therebetween, wherein the phase modulator is configured to modulate a phase of light traveling through the undoped region based on a first electrical signal applied to the phase modulator, an amplifier including a first doped layer, a quantum well layer, a clad layer, and a second doped layer sequentially on the substrate, the amplifier overlapping at least a portion of the phase modulator and being configured to amplify the light based on a second electrical signal applied to the amplifier, and an insulating layer between the phase modulator and the amplifier.

    LiDAR APPARATUS COMPRISING PLURALITY OF SWITCHES

    公开(公告)号:US20220334255A1

    公开(公告)日:2022-10-20

    申请号:US17478391

    申请日:2021-09-17

    Abstract: Provided is a light detection and ranging (LiDAR) apparatus including a plurality of switches connected in a binary tree structure, a light source and a photodetector respectively connected to a root switch provided on a root node of the binary tree structure, and a light transmission/reception optical system connected to a plurality of terminal switches provided at a plurality of terminal nodes of the binary tree structure, the light transmission/reception optical system being configured to transmit light to an outside of the LiDAR apparatus or receive light from the outside, wherein the root switch is a 2×2 switch including a first upstream side port, a second upstream side port, a first downstream side port, and a second downstream side port, and wherein the light source is connected to the first upstream side port and the photodetector is connected to the second upstream side port.

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