Abstract: In optical interconnect systems, information may be encoded in different wavelengths of light in an optical signal in a wavelength division multiplexing (WDM) scheme. The inventors have recognized and appreciated that the data rate of an optical interconnect system may be doubled by employing a polarization multiplexing scheme, where some information is encoded in an optical signal having a first polarization state and other information is encoded in an optical signal having a second, orthogonal polarization state as the different polarizations will act independently while propagating along a fiber. Accordingly, described herein are systems and techniques for optical interconnect systems employing polarization multiplexing.

Abstract: A method for improved multimodal gesture recognition may include training a first model to recognize a gesture in a first input modality and using the training of the first model to recognize the gesture in the first input modality to train a second model in a second input modality to recognize the gesture.

Abstract: Described herein are systems and techniques for a bidirectional polarization diverse optical transceivers. When an optical signal propagates along a single mode fiber, the single polarization mode gets rotated and may arrive at an optical transceiver with an arbitrary superposition of two orthogonal polarization modes, each of which experience differing optical effects. The bidirectional optical transceivers described herein include one or more features for addressing the differing optical effects so that both polarization modes are received at substantially a same time.

Abstract: Light is propagated in a first waveguide of a 1×2 optical switch that is coupled to the input to receive light and coupled to the first output to output light that is in the first waveguide; and a second waveguide that is adjacent to the first waveguide in a coupling region. The second waveguide is coupled to the second output to output light that is in the second waveguide. Light is coupled to the first output and second output based on absorption values of the second waveguide in the coupling region being below a threshold level, whereas light is coupled to only the first output based on upon increased absorption values of the second waveguide in the coupling region, the increased absorption values being above the threshold level.

Abstract: A method for processing sensitive user personally identifiable information (PII) data across geographical boundaries, including: receiving in real-time, by a personally identifiable information (PII) resolver within a first location, a payload data object from a first processing unit at a second location, wherein the payload data object comprises: a header comprising metadata, a body comprising a message to be sent to a user, and a first identifier associated with the user; determining, by the PII resolver, a second identifier and a third identifier stored in a database corresponding to the received first identifier, wherein the database includes a mapping between the first identifier, and the second identifier, and the third identifier; replacing, by the PII resolver.

Abstract: A method includes receiving, by a user device, a prompt associated with treatment of a patient. The method includes determining a treatment context for the treatment of the patient based on access to a back-end treatment context support system. The method includes processing the prompt in view of the treatment context using one or more trained machine learning models to generate one or more actionable recommendations. The method includes outputting the one or more actionable recommendations via at least one of the user device or an additional device associated with the user device.

Abstract: In embodiments, a system comprises a server computing device comprising a messaging platform configured to provide messaging between a plurality of different types of medical applications, a first computing device of a doctor and a second computing device of a patient or prospective patient. The first computing device comprises a doctor-focused medical application and a first chat module that integrates with the doctor-focused medical application and that enables the doctor-focused medical application to interface with the messaging platform. The second computing device comprises a patient-focused medical application and a second chat module that integrates with the patient-focused medical application and that enables the patient-focused medical application to interface with the messaging platform, wherein the patient-focused medical application has different functionality than the doctor-focused medical application.

Abstract: Hybrid interconnect schemes that combine both electrical and optical stitching are described. Electrical stitching is well-suited for short-reach, high-bandwidth connections between adjacent or closely spaced units. On the other hand, optical stitching is well-suited for long-reach, low-loss connections between non-adjacent units. By leveraging the complementary nature of electrical and optical stitching, a multi-reticle device may be constructed that provides substantially greater scalability in terms of compute and memory density and overall interconnect bandwidth than is achievable using conventional approaches. An intermediate connection layer is configured to electrically connect electrical integrated circuits (EIC) of the plurality of EICs that are within a cutoff range of one another. An electro-optical interposer is configured to optically connect EICs of the plurality of EICs that are outside the cutoff range of one another.

Abstract: A mounting rail configured to connect to a photovoltaic (PV) module may include an upper portion, a first alignment member, and a second alignment member. The upper portion may include a surface configured to physically engage with a bottom surface of a module rail associated with the PV module. The first alignment member may extend from the surface of the upper portion at a first location. The first alignment member may also be configured to physically engage with a side surface of the module rail. The second alignment member may extend from the surface of the upper portion at a second location. The second alignment member may also be configured to physically engage with the side surface of the module rail.

Abstract: Electro-optical devices and methods for constructing electro-optical devices such as a switch or phase shifter. An electrode layer is deposited on a substrate layer, a waveguide structure is deposited on the electrode layer, a first cladding layer is deposited on the waveguide structure, and the first cladding layer is planarized and bonded to a wafer. The substrate layer is removed and the electrode layer is etched to split the electrode layer into a first electrode separated from a second electrode. A second cladding layer is deposited on the etched electrode layer. The first and second electrodes may be composed of a material with a large dielectric constant, or they may be composed of a material with a large electron mobility. The device may exhibit a sandwich waveguide architecture where an electro-optic layer is disposed between two strip waveguides.

Abstract: A method includes propagating light in a first waveguide of a 1×2 optical switch. The first waveguide is adjacent to a second waveguide in a coupling region. The 1×2 optical switch comprising an input to receive the light and couple the light to the first waveguide. The 1×2 optical switch further comprising a first output to output light from the first waveguide and a second output to output the light from the second waveguide. The method further includes coupling the light to the first output and the second output based on absorption values of the second waveguide in the coupling region; adjusting absorption values of the second waveguide in the coupling region such that light is directed from the input to only the first output; and coupling light to only the first output based on the adjusted absorption values of the second waveguide in the coupling region.

Abstract: Electro-optical devices and methods for constructing electro-optical devices such as a switch or phase shifter. An electrode layer is deposited on a substrate layer, a waveguide structure is deposited on the electrode layer, a first cladding layer is deposited on the waveguide structure, and the first cladding layer is planarized and bonded to a wafer. The substrate layer is removed and the electrode layer is etched to split the electrode layer into a first electrode separated from a second electrode. A second cladding layer is deposited on the etched electrode layer. The first and second electrodes may be composed of a material with a large dielectric constant, or they may be composed of a material with a large electron mobility. The device may exhibit a sandwich waveguide architecture where an electro-optic layer is disposed between two strip waveguides.

Abstract: Electro-optical devices and methods for constructing electro-optical devices such as a switch or phase shifter. An electrode layer is deposited on a substrate layer, a waveguide structure is deposited on the electrode layer, a first cladding layer is deposited on the waveguide structure, and the first cladding layer is planarized and bonded to a wafer. The substrate layer is removed and the electrode layer is etched to split the electrode layer into a first electrode separated from a second electrode. A second cladding layer is deposited on the etched electrode layer. The first and second electrodes may be composed of a material with a large dielectric constant, or they may be composed of a material with a large electron mobility. The device may exhibit a sandwich waveguide architecture where an electro-optic layer is disposed between two strip waveguides.

Abstract: Described herein are wavelength division multiplexing (WDM) transceivers configured to support fast, bidirectional communication over optical channels. An optical transceiver comprises a transmitter, a receiver, an input/output (I/O) port and an optical interleaver. The transmitter comprises a first bus waveguide and a plurality of optical modulators coupled to the first bus waveguide, each of the optical modulators being resonant at a respective wavelengths in a first wavelength set. The receiver comprises a second bus waveguide and a plurality of optical filters coupled to the second bus waveguide, each of the optical filters being resonant at a respective wavelength in a second wavelength set. The (I/O) port is coupled to an optical channel.

Abstract: A first embodiment of a torque tube coupler may include an outer body that includes a first abutting surface and a second abutting surface adjacent to the first abutting surface. Set screws may be inserted into one or more channels of the first abutting surface. Tightening the set screws may force the abutting surfaces away from each other and the outer body to press against an inner surface of a torque tube. Another embodiment of the torque tube coupler may include a central ring sized based on a size of a torque tube. The torque tube coupler may also include a set of fingers that extend away from a first side of the central ring and are shaped to flex radially outward. The torque tube coupler may include a core disposed within the set of fingers that, when drawn towards the central ring, causes the fingers to flex radially outwards.

Abstract: Described herein are wavelength division multiplexing (WDM) transceivers configured to support fast, bidirectional communication over optical channels. An optical transceiver comprises a transmitter, a receiver, an input/output (I/O) port and an optical interleaver. The transmitter comprises a first bus waveguide and a plurality of optical modulators coupled to the first bus waveguide, each of the optical modulators being resonant at a respective wavelengths in a first wavelength set. The receiver comprises a second bus waveguide and a plurality of optical filters coupled to the second bus waveguide, each of the optical filters being resonant at a respective wavelength in a second wavelength set. The (I/O) port is coupled to an optical channel.

Abstract: A torque tube coupler may include an outer body that includes a first abutting surface and a second abutting surface adjacent to the first abutting surface. Set screws may be inserted into one or more channels of the first abutting surface. Tightening the set screws may force the abutting surfaces away from each other and the outer body to press against an inner surface of a torque tube. Another embodiment of the torque tube coupler may include a central ring sized based on a size of a torque tube. The torque tube coupler may also include a set of fingers that extend away from a first side of the central ring and are shaped to flex radially outward. The torque tube coupler may include a core disposed within the set of fingers that, when drawn towards the central ring, causes the fingers to flex radially outwards.

Abstract: Described herein are architectures configured to enable wavelength remapping in on-chip wavelength division multiplexing (WDM) optical systems. An optical switching network receives light having wavelengths corresponding to wavelength set A at a first subset of the plurality of inputs and light having wavelengths corresponding to wavelength set B at a second subset of the plurality of inputs. The wavelengths are received in accordance with a first spatial order. In response, the optical switching network may change the order from the first spatial order to a second spatial order. For example, the optical switching network may output light having wavelengths corresponding to wavelength set A at a first subset of the plurality of outputs and light having wavelengths corresponding to wavelength set B at a second subset of the plurality of outputs in accordance with the second spatial order.

Abstract: Electro-optical devices and methods for constructing electro-optical devices such as a switch or phase shifter. An electrode layer is deposited on a substrate layer, a waveguide structure is deposited on the electrode layer, a first cladding layer is deposited on the waveguide structure, and the first cladding layer is planarized and bonded to a wafer. The substrate layer is removed and the electrode layer is etched to split the electrode layer into a first electrode separated from a second electrode. A second cladding layer is deposited on the etched electrode layer. The first and second electrodes may be composed of a material with a large dielectric constant, or they may be composed of a material with a large electron mobility. The device may exhibit a sandwich waveguide architecture where an electro-optic layer is disposed between two strip waveguides.

Abstract: Electro-optical devices and methods for constructing electro-optical devices such as a switch or phase shifter. An electrode layer is deposited on a substrate layer, a waveguide structure is deposited on the electrode layer, a first cladding layer is deposited on the waveguide structure, and the first cladding layer is planarized and bonded to a wafer. The substrate layer is removed and the electrode layer is etched to split the electrode layer into a first electrode separated from a second electrode. A second cladding layer is deposited on the etched electrode layer. The first and second electrodes may be composed of a material with a large dielectric constant, or they may be composed of a material with a large electron mobility. The device may exhibit a sandwich waveguide architecture where an electro-optic layer is disposed between two strip waveguides.