公开(公告)号：US20230306171A1

公开(公告)日：2023-09-28

申请号：US17666399

申请日：2022-02-07

Applicant: X Development LLC

Inventor： Cyril Bortolato ,  Martin Schubert

IPC: G06F30/3308 ,  G01B11/00

CPC classification number: G06F30/3308 ,  G01B11/00

Abstract: Techniques for optimizing a test physical device for detecting variations in a fabrication process are disclosed. A computing system simulates fabrication of an initial design for the test physical device using at least a first and a second fabrication model to determine first and second structural parameters, respectively. The first fabrication model assumes a first value for a physical characteristic of outputs of the fabrication process, and the second fabrication model assumes a second value for the physical characteristic of outputs of the fabrication process. A first and second performance metric are obtained by simulating performance of the first and second structural parameters, respectively. A loss metric based on at least the first performance metric and the second performance metric is determined that penalizes performance metrics with similar values for dissimilar structural parameters. A gradient of the loss metric is backpropagated to generate an updated design.

公开(公告)号：US20220318365A1

公开(公告)日：2022-10-06

申请号：US17222624

申请日：2021-04-05

Applicant: X Development LLC

Inventor： Cyril Bortolato

IPC: G06F21/44 ,  G06F21/45 ,  H04B10/70

Abstract: A photonic device is provided. The photonic device may include an input region and a dispersive region optically coupled with the input region. The dispersive region may include a first material and a second material anisotropically distributed to form a plurality of interfaces that each correspond to a change in a refractive index of the dispersive region. The plurality of interfaces may collectively structure the dispersive region to generate an output optical signal from an input optical signal. The photonic device may also include an output region, optically coupled with the dispersive region. The plurality of interfaces may form a material interface pattern in the dispersive region that is characterized by a defect distribution to introduce one or more spectral artifacts into the output optical signal that collectively define a unique spectral signature of the photonic device.

公开(公告)号：US20230385499A1

公开(公告)日：2023-11-30

申请号：US17828864

申请日：2022-05-31

Applicant: X Development LLC

Inventor： Cyril Bortolato

IPC: G06F30/337

CPC classification number: G06F30/337

Abstract: In some embodiments, a method for designing a photonic device is provided. A design optimization system receives an initial design for the photonic device. The initial design includes one or more inputs, one or more outputs, a number of subcomponent regions, and a number of waveguides for connecting the subcomponent regions. The design optimization system simulates each subcomponent region to determine simulated s-parameters of each subcomponent region. The design optimization system determines overall s-parameters for a simulated photonic device based on the simulated s-parameters of each subcomponent region and s-parameters of the waveguides. The design optimization system determines an overall gradient associated with the overall s-parameters. The design optimization system optimizes one or more subcomponent regions based on the overall gradient to create an updated design for the photonic device.

公开(公告)号：US12153662B2

公开(公告)日：2024-11-26

申请号：US17222624

申请日：2021-04-05

Applicant: X Development LLC

Inventor： Cyril Bortolato

IPC: G06F21/44 ,  G06F21/45 ,  H04B10/70

Abstract: A photonic device is provided. The photonic device may include an input region and a dispersive region optically coupled with the input region. The dispersive region may include a first material and a second material anisotropically distributed to form a plurality of interfaces that each correspond to a change in a refractive index of the dispersive region. The plurality of interfaces may collectively structure the dispersive region to generate an output optical signal from an input optical signal. The photonic device may also include an output region, optically coupled with the dispersive region. The plurality of interfaces may form a material interface pattern in the dispersive region that is characterized by a defect distribution to introduce one or more spectral artifacts into the output optical signal that collectively define a unique spectral signature of the photonic device.

公开(公告)号：US20230237213A1

公开(公告)日：2023-07-27

申请号：US17586370

申请日：2022-01-27

Applicant: X Development LLC

Inventor： Cyril Bortolato

IPC: G06F30/20 ,  G06F30/18 ,  G06F30/12 ,  H04B10/077

CPC classification number: G06F30/20 ,  G06F30/18 ,  G06F30/12 ,  H04B10/0775 ,  H04B10/0773 ,  G06F2113/16

Abstract: Techniques for creating a design for a physical device are disclosed. A computing system receives a design specification. The design specification includes a design region, one or more ports, and a port location perimeter. The computing system determines an initial proposed design based on the design specification that includes the design region and a location for each port of the one or more ports within the port location perimeter. The computing system optimizes the design region of the initial proposed design to create an improved design region, and optimizes at least one location of a port of the one or more ports within the port location perimeter to create an improved proposed design.