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公开(公告)号：US20210305767A1
公开(公告)日：2021-09-30
申请号：US17321337
申请日：2021-05-14
Applicant: X Development LLC
Inventor： Martin Friedrich Schubert , Brian John Adolf , Jesse Lu
Abstract: Methods for designing a mode-selective optical device including one or more optical interfaces defining an optical cavity include: defining a loss function within a simulation space encompassing the optical device, the loss function corresponding to an electromagnetic field having an operative wavelength within the optical device resulting from an interaction between an input electromagnetic field at the operative wavelength and the one or more optical interfaces of the optical device; defining an initial structure for each of the one or more optical interfaces, each initial structure being defined using a plurality of voxels; determining values for at least one structural parameter and/or at least one functional parameter of the one or more optical interfaces by solving Maxwell's equations; and defining a final structure of the one or more optical interfaces based on the values for the one or more structural and/or functional parameters.
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公开(公告)号：US11011884B1
公开(公告)日：2021-05-18
申请号：US16555454
申请日：2019-08-29
Applicant: X Development LLC
Inventor： Martin Friedrich Schubert , Brian John Adolf , Jesse Lu
Abstract: Methods for designing a mode-selective optical device including one or more optical interfaces defining an optical cavity include: defining a loss function within a simulation space encompassing the optical device, the loss function corresponding to an electromagnetic field having an operative wavelength within the optical device resulting from an interaction between an input electromagnetic field at the operative wavelength and the one or more optical interfaces of the optical device; defining an initial structure for each of the one or more optical interfaces, each initial structure being defined using a plurality of voxels; determining values for at least one structural parameter and/or at least one functional parameter of the one or more optical interfaces by solving Maxwell's equations; and defining a final structure of the one or more optical interfaces based on the values for the one or more structural and/or functional parameters.
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公开(公告)号：US10862610B1
公开(公告)日：2020-12-08
申请号：US16679579
申请日：2019-11-11
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.
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公开(公告)号：US11835715B1
公开(公告)日：2023-12-05
申请号：US16720957
申请日：2019-12-19
Applicant: X Development LLC
Inventor： Jesse Lu , Brian John Adolf , Martin Friedrich Schubert
IPC: G02B27/00 , G06F30/23 , G06F111/10
CPC classification number: G02B27/0012 , G06F30/23 , G06F2111/10
Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for designing a multimodal photonic component. In one aspect, a method includes defining a loss function within a simulation space including multiple voxels and encompassing features of the multimodal photonic component. The loss function corresponds to a target output mode profile for an input mode profile, where the target output mode profile includes a relationship between a set of operating conditions and one or more supported modes of the multimodal photonic component at a particular operative wavelength. The initial structure is defined for one or more features, where at least some of the voxels corresponding to features have a dimension smaller than a smallest operative wavelength of the multimodal photonic component, and values for structural parameters for the features are determined so that a loss according to the loss function is within a threshold loss.
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公开(公告)号：US11828934B1
公开(公告)日：2023-11-28
申请号：US16508175
申请日：2019-07-10
Applicant: X Development LLC
Inventor： Jesse Lu , Brian John Adolf , Martin Friedrich Schubert
IPC: G02B27/00 , G06F30/00 , G06F111/10
CPC classification number: G02B27/0012 , G06F30/00 , G06F2111/10
Abstract: A computer-implemented method for designing a dispersive optical component includes: (i) defining a loss function within a simulation space composed of multiple voxels, the simulation space encompassing optical interfaces of the component, the loss function corresponding to a target dispersion profile for the component including a relationship between a scattering angle and a wavelength of an incident electromagnetic field for different operative wavelengths; (ii) defining an initial structure for the optical interfaces, at least some of the voxels corresponding to each optical interface having a dimension smaller than a smallest operative wavelength of the component; and (iii) determining, using a computer system, a structure for each optical interface using a finite-difference time domain solver to solve Maxwell's equations so that a loss determined according to the loss function is above a specified threshold.
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Patent Agency Ranking
公开(公告)号：US11804691B2
公开(公告)日：2023-10-31
申请号：US17321337
申请日：2021-05-14
Applicant: X Development LLC
Inventor： Martin Friedrich Schubert , Brian John Adolf , Jesse Lu
CPC classification number: H01S5/0035 , H01S5/0285 , H01S5/0287 , H01S5/065 , H01S5/0651 , H01S5/1003 , H01S5/1028 , H01S5/20 , H01S5/2027 , H01S5/2031 , H01S5/22 , H01S5/32 , H01S5/34 , H01S2301/16
Abstract: Methods for designing a mode-selective optical device including one or more optical interfaces defining an optical cavity include: defining a loss function within a simulation space encompassing the optical device, the loss function corresponding to an electromagnetic field having an operative wavelength within the optical device resulting from an interaction between an input electromagnetic field at the operative wavelength and the one or more optical interfaces of the optical device; defining an initial structure for each of the one or more optical interfaces, each initial structure being defined using a plurality of voxels; determining values for at least one structural parameter and/or at least one functional parameter of the one or more optical interfaces by solving Maxwell's equations; and defining a final structure of the one or more optical interfaces based on the values for the one or more structural and/or functional parameters.
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27.发明授权公开(公告)号：US11636241B2
公开(公告)日：2023-04-25
申请号：US17387082
申请日：2021-07-28
Applicant: X Development LLC
Inventor： Brian Adolf , Martin Schubert , Jesse Lu
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.
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公开(公告)号：US20230052816A1
公开(公告)日：2023-02-16
申请号：US17402141
申请日：2021-08-13
Applicant: X Development LLC
Inventor： Brian Adolf , Martin Schubert , Jesse Lu
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. At least some of the generating, determining, combining, and creating actions are repeated until a fabricable segmented design is generated.
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公开(公告)号：US11550971B1
公开(公告)日：2023-01-10
申请号：US16251708
申请日：2019-01-18
Applicant: X Development LLC
Inventor： Jesse Lu , Brian Adolf , Martin Schubert
Abstract: At least one machine-accessible storage medium that provides instructions that, when executed by a machine, will cause the machine to perform operations. The operations comprise configuring a simulated environment to be representative of a physical device based, at least in part, on an initial description of the physical device that described structural parameters of the physical device. The operations further comprise performing a physics simulation with an artificial intelligence (“AI”) accelerator. The AI accelerator includes a matrix multiply unit for computing convolution operations via a plurality of multiply-accumulate units. The operations further comprise computing a field response in response of the physical device in response to an excitation source within the simulated environment when performing the physics simulation. The field response is computed, at least in part, with the convolution operations to perform spatial differencing.
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30.发明授权公开(公告)号：US11501169B1
公开(公告)日：2022-11-15
申请号：US16398697
申请日：2019-04-30
Applicant: X Development LLC
Inventor： Martin Schubert , Brian Adolf , Jesse Lu
Abstract: A method of optimizing structural parameters of a physical device includes: receiving an initial description of the physical device that describes the physical device with an array of voxels that each describe one or more of the structural parameters; performing a time-forward simulation of a field response propagating through the physical device and interacting with the voxels in a simulated environment, wherein the field response is influenced by the structural parameters of the voxels; generating field response values describing the field response at each of the voxels for each of a plurality of time steps; encoding the field response values to generate compressed field response values; storing the compressed field response values; decoding one or more of the compressed field response values to extract regenerated field response values; and generating a revised description of the physical device having a structural parameter optimized.
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