公开(公告)号：US12147739B2

公开(公告)日：2024-11-19

申请号：US17402141

申请日：2021-08-13

Applicant: X Development LLC

Inventor： Brian Adolf ,  Martin Schubert ,  Jesse Lu

IPC: G06F30/20 ,  G06F30/10 ,  G06F119/02 ,  G06F119/18

Abstract: In some embodiments, a computer-implemented method for creating a fabricable segmented design for a physical device is provided. A computing system receives a design specification. The computing system generates a proposed segmented design based on the design specification. The computing system determines two or more loss values based on the proposed segmented design. The computing system combines the two or more loss values to create a combined loss value. The computing system creates an updated design specification using the combined loss value. The generating, determining, combining, and creating actions are repeated until a fabricable segmented design is generated.

公开(公告)号：US20220131632A1

公开(公告)日：2022-04-28

申请号：US17573492

申请日：2022-01-11

Applicant: X Development LLC

Inventor： Martin Schubert ,  Brian Adolf ,  Jesse Lu

IPC: H04J14/02 ,  H04B10/25 ,  G06F30/30 ,  G06F30/367

Abstract: A multi-channel photonic demultiplexer includes an input region to receive a multi-channel optical signal including four distinct wavelength channels, four output regions, each adapted to receive a corresponding one of the four distinct wavelength channels demultiplexed from the multi-channel optical signal, and a dispersive region optically disposed between the input region and the four output regions. The dispersive region includes a first material and a second material inhomogeneously interspersed to form a plurality of interfaces that each correspond to a change in refractive index of the dispersive region and collectively structure the dispersive region to optically separate each of the four distinct wavelength channels from the multi-channel optical signal and respectively guide each of the four distinct wavelength channels to the corresponding one of the four output regions.

公开(公告)号：US11106841B1

公开(公告)日：2021-08-31

申请号：US16397395

申请日：2019-04-29

Applicant: X Development LLC

Inventor： Brian Adolf ,  Martin Schubert ,  Jesse Lu

IPC: G06F30/20 ,  G06F30/17 ,  G06T17/00

Abstract: A system, apparatus, and method for optimizing structural parameters of a physical device are described. The method includes receiving an initial description of the physical device describing the structural parameters within a simulated environment. The method further includes performing a simulation of the physical device in response to an excitation source to determine a performance metric of the physical device. The simulation environment includes one or more absorbing boundaries for attenuation of an output of the excitation source during the simulation. The method further includes recording attenuated field values of the simulated environment associated with the attenuation during the simulation. The method further includes determining a loss metric based on a difference between the performance metric and a target performance metric, backpropagating the loss metric using the attenuated field values, and generating a revised description of the physical device by updating the structural parameters to reduce the loss metric.

公开(公告)号：US12061851B1

公开(公告)日：2024-08-13

申请号：US18313982

申请日：2023-05-08

Applicant: X Development LLC

Inventor： Jesse Lu ,  Brian John Adolf ,  Martin Friedrich Schubert

IPC: G06F30/23 ,  G02B27/00 ,  G06F111/10

CPC classification number: G06F30/23 ,  G02B27/0012 ,  G06F2111/10

Abstract: Methods and systems for designing a photonic computational architecture including a plurality of optical components. At least some of the methods include: defining a loss function within a simulation space composed of a plurality of voxels, the simulation space encompassing the plurality of optical components; defining an initial structure for the photonic computational architecture in the simulation space, at least some of the voxels corresponding to each of the plurality of optical components and having a dimension smaller than an operative wavelength of the computational architecture; determining values for at least one structural parameter and/or at least one functional parameter for each of the plurality of optical components using a numerical solver to solve Maxwell's equations; and defining a final structure of the photonic computational architecture based on the values for the one or more structural and/or functional parameters.

公开(公告)号：US11824631B2

公开(公告)日：2023-11-21

申请号：US17573492

申请日：2022-01-11

Applicant: X Development LLC

Inventor： Martin Schubert ,  Brian Adolf ,  Jesse Lu

IPC: H04J14/02 ,  H04B10/25 ,  G06F30/30 ,  G06F30/367

CPC classification number: H04J14/02 ,  G06F30/30 ,  G06F30/367 ,  H04B10/25

Abstract: A multi-channel photonic demultiplexer includes an input region to receive a multi-channel optical signal including four distinct wavelength channels, four output regions, each adapted to receive a corresponding one of the four distinct wavelength channels demultiplexed from the multi-channel optical signal, and a dispersive region optically disposed between the input region and the four output regions. The dispersive region includes a first material and a second material inhomogeneously interspersed to form a plurality of interfaces that each correspond to a change in refractive index of the dispersive region and collectively structure the dispersive region to optically separate each of the four distinct wavelength channels from the multi-channel optical signal and respectively guide each of the four distinct wavelength channels to the corresponding one of the four output regions.

公开(公告)号：US11205022B2

公开(公告)日：2021-12-21

申请号：US16244846

申请日：2019-01-10

Applicant: X Development LLC

Inventor： Jesse Lu ,  Martin Schubert ,  Brian Adolf

IPC: G06F30/00 ,  G06F111/10 ,  G06F30/23

Abstract: A method and system for optimizing structural parameters of an electromagnetic device is described that includes performing operations. The operations include performing a time-forward simulation of a field response in a simulated environment describing the electromagnetic device and extracting decomposition components from the field response to compute a loss value. The operations further include backpropagating the loss value backwards in time using the decomposition components to determine an influence of changes in the structural parameters of the electromagnetic device on the loss value. The operations further include generating a revised description of the electromagnetic device by updating the structural parameters to reduce the loss value.

公开(公告)号：US20210143930A1

公开(公告)日：2021-05-13

申请号：US17084032

申请日：2020-10-29

Applicant: X Development LLC

Inventor： Martin Schubert ,  Brian Adolf ,  Jesse Lu

IPC: H04J14/02 ,  H04B10/25 ,  G06F30/367 ,  G06F30/30

Abstract: A multi-channel photonic demultiplexer includes an input region to receive a multi-channel optical signal including four distinct wavelength channels, four output regions, each adapted to receive a corresponding one of the four distinct wavelength channels demultiplexed from the multi-channel optical signal, and a dispersive region optically disposed between the input region and the four output regions. The dispersive region includes a first material and a second material inhomogeneously interspersed to form a plurality of interfaces that each correspond to a change in refractive index of the dispersive region and collectively structure the dispersive region to optically separate each of the four distinct wavelength channels from the multi-channel optical signal and respectively guide each of the four distinct wavelength channels to the corresponding one of the four output regions.

公开(公告)号：US20200342325A1

公开(公告)日：2020-10-29

申请号：US16393666

申请日：2019-04-24

Applicant: X Development LLC

Inventor： Jesse Lu ,  Brian Adolf ,  Martin Schubert

IPC: G06N3/08 ,  G06F17/50

Abstract: A computer-implemented method for revising structural parameters of a physical device is provided. The method comprises configuring a simulated environment to be representative of the physical device based on an initial description that describes structural parameters of the physical device. The method further includes performing an operational simulation of the physical device based on training data representative of physical stimuli within a physical domain to simulate an interaction between the physical device and the physical stimuli. The method further includes computing a loss value based on a simulated output of the physical device and performing and adjoint simulation by backpropagating the loss value through the simulated environment. The method also includes generating a revised description of the physical device by updating the structural parameters to reduce the loss value.

公开(公告)号：US11900026B1

公开(公告)日：2024-02-13

申请号：US16393654

申请日：2019-04-24

Applicant: X Development LLC

Inventor： Martin Schubert ,  Brian Adolf ,  Jesse Lu

IPC: G06F30/20 ,  G06N3/084 ,  G06N3/045 ,  G06F30/27 ,  G06F30/23 ,  G06F111/04 ,  G06F119/18 ,  G06F119/22 ,  G02B5/02

CPC classification number: G06F30/20 ,  G06N3/045 ,  G06N3/084 ,  G02B5/0268 ,  G06F30/23 ,  G06F30/27 ,  G06F2111/04 ,  G06F2119/18 ,  G06F2119/22 ,  Y02P90/02

Abstract: A computer-implemented method for modeling fabrication constraints of a fabrication process is described. The method includes receiving training data including pre-fabrication structures and post-fabrication, training a fabrication constraint model by optimizing parameters of the fabrication constraint model based on the training data to model the fabrication constraints of the fabrication process, receiving an input design corresponding to a physical device, and generating a fabricability metric of the input design via the fabrication constraint model. The fabricability metric is related to a probabilistic certainty that the input design is fabricable by the fabrication process determined by the fabrication constraint model.

公开(公告)号：US11703640B2

公开(公告)日：2023-07-18

申请号：US17490622

申请日：2021-09-30

Applicant: X Development LLC

Inventor： Martin Schubert ,  Brian Adolf ,  Jesse Lu

IPC: G02B6/12 ,  G06F30/23

CPC classification number: G02B6/12007 ,  G02B6/12004 ,  G06F30/23

Abstract: A two-channel photonic demultiplexer includes an input region to receive a multi-channel optical signal, two output regions, each adapted to receive a corresponding one of two distinct wavelength channels demultiplexed from the multi-channel optical signal, and a dispersive region including a first material and a second material inhomogeneously interspersed to form a plurality of interfaces that collectively structure the dispersive region to optically separate each of the two distinct wavelength channels from the multi-channel optical signal and respectively guide the first distinct wavelength channel to a first output region and the second distinct wavelength channel to the second output region when the input region receives the multi-channel optical signal. At least one of the first material or the second material is structured within the dispersive region to be schematically reproducible by a feature shape with a pre-determined width.