Abstract: Implementations described and claimed herein provide an example LiDAR architecture that facilitates low-cost alignment of solid state components. The system includes at least a transceiver chip, a laser, and a u-shaped optical amplifier. The transceiver chip includes a signal preparation block that receives light from the laser and that modulates the laser light. The u-shaped optical amplifier is positioned to receive a light signal output from the signal preparation block and to output an amplified light signal back into the transceiver chip.

Abstract: Systems and techniques for facilitating card authentication technique selection via machine learning are provided. In various embodiments, a processor can access an attribute vector associated with a financial payment card. In various instances, the processor can determine, via execution of a machine learning model, whether to authenticate the financial payment card with a zero-dollar authentication technique or instead with a tokenization authentication technique, based on the attribute vector. In various cases, the processor can execute the zero-dollar authentication technique with respect to the financial payment card, when the processor determines that the financial payment card should be authenticated with the zero-dollar authentication technique.

Abstract: An active metasurface that provides low-loss and high-bandwidth modulation control of light includes a number of cells arranged on a substrate. A controller dynamically alters a voltage differential supplied to the electrodes of each of the cells is adapted to alter refractive index of each of the high-index dielectric blocks in order to controllably steer light exiting the cell.

Abstract: A predistorter for an electro-optical converter includes a plurality of low noise RF amplifiers distributed along a transmission line that receive an RF input. Second order intermodulation injection (IM2) circuitry includes an inductively-degenerated frequency doubler to square and filter IM2 products of the RF input. A Mach-Zehnder Modulator (MZM) is used for electro-optical conversion. Feed forward circuitry injects IM2 to independently propagate RF intermodulation components with velocity matching to the MZM. At least one driver injects the RF input and RF intermodulation components into the MZM.

Abstract: An active metasurface that provides low-loss and high-bandwidth modulation control of light includes a number of cells arranged on a substrate. A controller dynamically alters a voltage differential supplied to the electrodes of each of the cells is adapted to alter refractive index of each of the high-index dielectric blocks in order to controllably steer light exiting the cell.

Abstract: Systems and techniques for facilitating card authentication technique selection via machine learning are provided. In various embodiments, a processor can access an attribute vector associated with a financial payment card. In various instances, the processor can determine, via execution of a machine learning model, whether to authenticate the financial payment card with a zero-dollar authentication technique or instead with a tokenization authentication technique, based on the attribute vector. In various cases, the processor can execute the zero-dollar authentication technique with respect to the financial payment card, when the processor determines that the financial payment card should be authenticated with the zero-dollar authentication technique.

Abstract: A waveguide grating antenna apparatus includes a substrate layer, a lower waveguide array layer upon the substrate, and an upper waveguide array layer positioned above the lower waveguide array layer. The lower waveguide array layer is composed of a plurality of first waveguides extending axially and a plurality of second waveguides extending axially and arranged in parallel and alternating in position with the plurality of first waveguides across the lower waveguide array layer. Each first waveguide is of a first maximum width. Each second waveguide is of a second maximum width narrower than the first maximum width and is spaced apart from each adjacent first waveguide. The upper waveguide array layer is composed of adjacent, separated elements extending axially along each first waveguide and each second waveguide.

Abstract: Systems, devices, and methods may use input/output (I/O) apparatus and an optical switching medium to switch, or route, optical data signals. The optical switching medium may include a plurality of optical switching regions. The I/O apparatus may transmit optical data signals to and receive optical data signals from the optical switching medium to provide switching functionality.

Abstract: A method and a system for controlling at least one Internet of Things (IoT) device is described. The method includes identifying a current user activity associated with each of the at least one IoT device, detecting a non-speech sound during the identified current user activity, predicting a user action based on the detected non-speech sound, wherein the predicted user action impacts the current user activity, and automatically adjusting an operational setting of the at least one IoT device to minimize the impact on the current user activity, based on initiation of the predicted user action.

Abstract: A waveguide grating antenna apparatus includes a substrate layer, an asymmetric waveguide array layer upon the substrate layer, and a waveguide grating array layer formed above the asymmetric waveguide array layer. The waveguide array layer is composed of two forms of waveguide structures arranged in parallel. Each waveguide of the first form extends continuously, has a first width, and is laterally separated from each adjacent waveguide of the first form by a gap distance. Each waveguide of the second form extends parallel to and between adjacent waveguides of the first form within the first gap distance and is narrower than each of the first width and the gap distance. Pairs of the second form are closer to lateral sides of a first alternating set of the first form. The waveguide grating is composed of adjacent, separated elements extending axially along each waveguide of the first form.

Abstract: Implementations described and claimed herein provide a high-capacity, high-bandwidth scalable storage device. The scalable storage device includes a layer stack including at least one memory layer and at least one optical control layer positioned adjacent to the memory layer. The memory layer includes a plurality of memory cells and the optical control layer is adapted to receive optically-encoded read/write signals and to effect read and write operations to the plurality of memory cells through an electrical interface.

Abstract: Systems and techniques for facilitating card authentication technique selection via machine learning are provided. In various embodiments, a processor can access an attribute vector associated with a financial payment card. In various instances, the processor can determine, via execution of a machine learning model, whether to authenticate the financial payment card with a zero-dollar authentication technique or instead with a tokenization authentication technique, based on the attribute vector. In various cases, the processor can execute the zero-dollar authentication technique with respect to the financial payment card, when the processor determines that the financial payment card should be authenticated with the zero-dollar authentication technique.

Abstract: An active metasurface includes a number of periodically-repeated unit cells arranged on a substrate that each include a plasmonic waveguide shaped and sized to provide a cutoff mode that captures light of a target wavelength. The active metasurface includes an index modulation controller that controllably varies a voltage differential across each one of the periodically-repeated cells to change a phase of light incident on the metasurface.

Abstract: Apparatus and method for transferring data in a data storage system, such as but not limited to a hard disc drive (HDD). An optical link is provided between an analog front end (AFE) of a data storage device controller circuit (SOC) and a preamplifier/driver circuit (preamp) mounted to a rotary actuator to transfer an analog domain signal. A selected component is extracted from the signal using a modulation element such as a micro-resonance ring (MRR) or a Mach-Zehnder Interferometer Modulation (MZM) device. The extracted component is forwarded to a processing circuit to facilitate a transfer of data between a local memory and a non-volatile memory (NVM). The optical link includes a flexible portion in a flex circuit affixed to the rotary actuator and which supports the preamp. Multiplexed read, write, and power control signals are concurrently transmitted via the optical link. The link can concurrently service multiple head-disc assemblies (HDAs).

Abstract: A metasurface includes a plurality of Bragg mirrors, each having a defect cavity therein, arrayed in a grid. A heat source is provided for each of the plurality of Bragg mirrors. Each heat source is positioned to selectively modulate heat applied to its respective Bragg mirror and to impart a different phase shift via the applied heat from the heat source.

Abstract: Method and apparatus for generating and controlling pulses in a light detection and ranging (LiDAR) system. An opto-mechanical phase shifter (OMPS) device has an array of unit cells supported by a semiconductor substrate. Each unit cell includes a resonator extending between opposing first and second doped regions and a flexible layer extending above the resonator separated by an intervening gap. Application of voltage across the doped regions establishes an electric field that extends through the resonator and controllably deforms the flexible layer to direct a beam of light in a desired direction and with a desired phase. A detector derives range information associated with a target illuminated by the directed beam of light. The derived range information can be used to adjust the voltage(s) applied to the OMPS device. Each unit cell can be independently activated and controlled, or groups of unit cells can be operated as a set.

Abstract: Method and apparatus for enhancing resolution in a light detection and ranging (LiDAR) system. In some embodiments, an emitter emits light in the form of multiplexed beams of randomized, multiple wavelengths across a field of view (FoV). A detector uses one or more detection channels to detect the multiplexed beams reflected from a target within the FoV to decode range information associated with the target. The multiplexed beams may be generated by multiple light sources such as laser diodes, or a single source such as a frequency comb device. Randomization may be applied via a pseudorandom bit sequence modulator, and multiplexing/demultiplexing may be performed using waveguides and micro-resonance rings (MRRs). The multiplexed beam may be emitted using an optical phase array (OPA) integrated circuit device to scan the FoV simultaneously using the different wavelengths. The range information can be used to adaptively adjust the wavelengths in a subsequent scan.

Abstract: There are provided systems and methods for identifying transaction processing retry attempts based on machine learning models for transaction success. A service provider, such as an electronic transaction processor for digital transactions, may detect a failure of data processing for a transaction when processed with a separate data processing system, such as a card processing system for payment cards. In order to minimize cost and wasted resources for retrying transactions that are likely to further fail, a machine learning model may be implements that generates a predictive score for whether a failed transaction is likely to be successful if retried with the data processing system. The predictive score may be used to predict a probability of success, which may then be used with a cost function to determine a cost to retry the failed transaction and a cost to stop a retry of the failed transaction.

Abstract: Guest-to-host virtual networking can include linking a virtual entity proxy to a network adapter of a host machine through a virtual bridge. In response to a request that starts a guest running on the host machine, the guest can be configured to point to the virtual entity proxy and to communicatively couple to a network through the virtual entity proxy linked to the network adapter of the host machine. The virtual entity proxy can be bound to the network, such that the virtual entity proxy intermediates communications between the guest and one or more other guests running on one or more different host machines that are also communicatively coupled to the network.

Abstract: A light detection and ranging system can have a modulator coupled to a light source with the modulator consisting of a first PN junction with a first width and a second PN junction with a second width. In order for the total transfer function to add to arccosine, the first width and second width are configured differently.