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公开(公告)号：US11962351B2
公开(公告)日：2024-04-16
申请号：US17540088
申请日：2021-12-01
Applicant: X Development LLC
CPC classification number: H04B10/60 , G02B6/12002 , G02B6/12004 , G02B6/12007 , G02B6/26
Abstract: A multilayer photonic device is described, including an input region configured to receive an input signal, a multilayer stack optically coupled with the input region to receive the input signal, and an output region optically coupled with the multilayer stack to output an output signal. The multilayer stack can include a first metastructured dispersive region disposed in a first patterned layer of the multilayer stack and a second metastructured dispersive region disposed in a second patterned layer of the multilayer stack and optically coupled with the first metastructured dispersive region. The first metastructured dispersive region and the second metastructured dispersive region can together structure the multilayer stack to generate the output signal in response to the input signal.
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公开(公告)号：US20230252201A1
公开(公告)日：2023-08-10
申请号：US17667307
申请日：2022-02-08
Applicant: X Development LLC
IPC: G06F30/20
CPC classification number: G06F30/20 , G06F2113/10
Abstract: Techniques for optimizing a design for a physical device to be fabricated by a fabrication system are disclosed. A computing system receives an initial design of the physical device. The computing system simulates fabrication of the physical device using a fabrication model associated with the fabrication system to determine predicted structural parameters. The computing system determines a gradient of the fabrication model based on an estimator. The computing system backpropagates the gradient of the fabrication model to update the predicted structural parameters and thereby generate updated structural parameters. The computing system backpropagates a gradient associated with the updated structural parameters to update the initial design and thereby generate an updated initial design. In some embodiments, the updated initial design is transmitted to the fabrication system for fabrication of the physical device.
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公开(公告)号：US20240184148A1
公开(公告)日：2024-06-06
申请号：US17970141
申请日：2022-10-20
Applicant: X Development LLC
CPC classification number: G02F1/0123 , G02B6/1225 , G02F1/0018 , G02F1/0136 , G02B2006/12142
Abstract: An optical modulator includes a modulation region, an input port, an output port, and a modulation actuator. The modulation region includes an inhomogeneous arrangement of two or more different materials having different refractive indexes to structure the modulation region to manipulate one or more optical properties of an optical carrier wave in response to a modulation bias. The input port is optically coupled to the modulation region to inject the optical carrier wave into the modulation region. The modulation actuator is disposed proximate to the modulation region and adapted to apply the modulation bias to the modulation region to generate a modulated wave. The modulation bias adjusts at least one of the different refractive indexes of the inhomogeneous arrangement to provide variable control of the one or more optical properties of the optical carrier wave. The output port is optically coupled to the modulation region to receive the modulated wave.
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公开(公告)号：US20240104261A1
公开(公告)日：2024-03-28
申请号：US17945916
申请日：2022-09-15
Applicant: X Development LLC
Inventor： Ian Williamson , Alfred Ka Chun Cheung , Martin Schubert
IPC: G06F30/20
CPC classification number: G06F30/20 , G06F2119/02
Abstract: In some embodiments, techniques for optimizing a design for a physical device to be fabricated by a fabrication system is provided. A computing system receives an initial design. The computing system simulates performance of the initial design to determine a simulated performance metric of the initial design. The computing system determines a Jacobian of the simulated performance metric of the initial design. The computing system backpropagates a gradient of the simulated performance metric of the initial design to generate an updated design. The computing system estimates performance of the updated design using the Jacobian of the simulated performance metric of the initial design to determine an estimated performance metric. The computing system backpropagates a gradient of the estimated performance metric to generate a further updated design.
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5.发明公开公开(公告)号：US20240086593A1
公开(公告)日：2024-03-14
申请号：US17891846
申请日：2022-08-19
Applicant: X Development LLC
Inventor： Ian Williamson , Alfred Ka Chun Cheung , Martin Schubert
IPC: G06F30/27 , G06F30/367
CPC classification number: G06F30/27 , G06F30/367
Abstract: In some embodiments, techniques for optimizing a design for a physical device to be fabricated by a fabrication system is provided. A computing system receives an initial design. The computing system uses a fabrication model to determine structural parameters based on the initial design, wherein using the fabrication model includes applying one or more morphological transformations to the initial design that are predicted to be introduced by the fabrication system. The computing system obtains a performance metric by simulating performance of the structural parameters. The computing system determines a loss metric based on the performance metric. The computing system backpropagates a gradient of the loss metric to generate an updated design.
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Patent Agency Ranking
公开(公告)号：US11621784B1
公开(公告)日：2023-04-04
申请号：US17489640
申请日：2021-09-29
Applicant: X Development LLC
Abstract: A photonic integrated circuit comprises an optical deinterleaver, including an input region, a dispersive region, and at least two output regions. The input region is adapted to receive an input optical signal including a plurality of channels. The dispersive region is optically coupled to the input region to receive the input optical signal. The dispersive region includes an inhomogeneous arrangement of a first material and a second material to structure the dispersive region to separate the input optical signal into a plurality of multi-channel optical signals, including a first multi-channel optical signal and a second multi-channel optical signal. The at least two output regions, include a first out region and a second output region optically coupled to the dispersive region. The first output region is positioned to receive the first multi-channel optical signal and the second output region is positioned to receive the second multi-channel optical signal.
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公开(公告)号：US20230100128A1
公开(公告)日：2023-03-30
申请号：US17486514
申请日：2021-09-27
Applicant: X Development LLC
Abstract: A computer-implemented method of creating a design for a physical device using an inverse design process is provided. A computing system receives a proposed design. The computing system conducts an operational simulation based on the proposed design at a first resolution to generate a calculated performance result. The computing system provides the calculated performance result to a machine learning model to generate a predicted performance result of an operational simulation based on the proposed design at a second resolution, where the second resolution is higher than the first resolution. The computing system updates the proposed design based on the predicted performance result.
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公开(公告)号：US20230099485A1
公开(公告)日：2023-03-30
申请号：US17487649
申请日：2021-09-28
Applicant: X Development LLC
IPC: G06F30/398 , H04B10/073 , G05B19/4155
Abstract: In some embodiments, techniques for creating a design for a physical device are provided. A computing system receives an initial design of the physical device. Performance of the physical device is simulated using the initial design. A performance loss value is determined for the physical device based on the simulated performance at a target wavelength and one or more delta wavelengths. The performance loss value is backpropagated to determine a gradient corresponding to an influence of changes in the initial design on the total performance loss value. The initial design of the physical device is revised based at least in part on the gradient.
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公开(公告)号：US20240053625A1
公开(公告)日：2024-02-15
申请号：US17884970
申请日：2022-08-10
Applicant: X Development LLC
IPC: G02F1/025
CPC classification number: G02F1/025
Abstract: An optical modulator includes a modulation region, input, output, and sink ports, and a modulation actuator. The modulation region includes an inhomogeneous arrangement of two or more different materials having different refractive indexes. The input port is optically coupled to the modulation region to inject an optical carrier wave into the modulation region. The output port is optically coupled to the modulation region to receive and emit a modulated signal having a high state and a low state. The sink port is optically coupled to the modulation region. The modulation actuator is disposed proximate to the modulation region and adapted to apply a modulation bias to the modulation region that influences the different refractive indexes of the inhomogeneous arrangement to selectively steer a portion of optical power of the optical carrier wave to the sink port when the modulated signal is modulated into the low state.
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公开(公告)号：US20230171001A1
公开(公告)日：2023-06-01
申请号：US17540088
申请日：2021-12-01
Applicant: X Development LLC
Abstract: A multilayer photonic device is described, including an input region configured to receive an input signal, a multilayer stack optically coupled with the input region to receive the input signal, and an output region optically coupled with the multilayer stack to output an output signal. The multilayer stack can include a first metastructured dispersive region disposed in a first patterned layer of the multilayer stack and a second metastructured dispersive region disposed in a second patterned layer of the multilayer stack and optically coupled with the first metastructured dispersive region. The first metastructured dispersive region and the second metastructured dispersive region can together structure the multilayer stack to generate the output signal in response to the input signal.
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