Abstract: A multispectral sensing device includes a first die, including silicon, which is patterned to define a first array of sensor elements, which output first electrical signals in response to optical radiation that is incident on the device in a band of wavelengths less than 1000 nm that is incident on the front side of the first die. A second die has its first side bonded to the back side of the first die and includes a photosensitive material and is patterned to define a second array of sensor elements, which output second electrical signals in response to the optical radiation that is incident on the device in a second band of wavelengths greater than 1000 nm that passes through the first die and is incident on the first side of the second die. Readout circuitry reads the first electrical signals and the second electrical signals serially out of the device.

Abstract: A laser assembly includes a vertical cavity surface emitting laser and a resonant cavity extension. The resonant cavity extension is defined by two separate portions. A first portion may be formed from gallium arsenide and can define a microlens. A silicon dioxide layer can be disposed over the first portion and may be polished to a flat, planar surface. Reflective layers may interpose the first portion and second portion of the resonant cavity extension, and a reflective layer may be disposed over the planar surface. As a result of this construction, an extended cavity vertical surface emitting laser can be defined that is resistant to mode hopping and exhibits improved coherence length, beam divergence (high numerical aperture), and beam quality.

Abstract: A surface emitting laser (SEL)-based device for light detection and ranging is described. An example device includes a lens, a substrate, a SEL mounted on the substrate, and a circular polarizer. The substrate includes surface couplers and a set of interference couplers. The SEL emits electromagnetic radiation that is modulated according to a continuous wave frequency modulation. The circular polarizer generates a circularly polarized electromagnetic radiation. The first surface coupler directs in-phase and quadrature components of a local oscillator portion of the circularly polarized electromagnetic radiation toward first and second interference couplers and third and fourth interference couplers, respectively. The second surface coupler directs a first component of the signal portion toward the first interference coupler and the third interference coupler.

Abstract: A device is described that includes a lens, a photonic substrate, and a surface emitting laser mounted and a set of photodetectors mounted on the photonic substrate. The photonic substrate includes a first surface coupler, a second surface coupler, and an interference coupler. The surface emitting laser emits electromagnetic radiation that is modulated according to a continuous wave frequency modulation. The first surface coupler directs a local oscillator portion of the electromagnetic radiation toward the set of photodetectors. The second surface coupler directs, toward the set of photodetectors, a signal portion of the electromagnetic radiation that is reflected from a target and received via the lens. The interference coupler optically interferes the local oscillator portion from the first surface coupler with the signal portion from the second surface coupler to generate a set of optical outputs that are provided to the set of photodetectors.

Abstract: Disclosed herein are self-mixing interferometry (SMI) sensors, such as may include vertical cavity surface emitting laser (VCSEL) diodes and resonance cavity photodetectors (RCPDs). Structures for the VCSEL diodes and RCPDs are disclosed. In some embodiments, a VCSEL diode and an RCPD are laterally adjacent and formed from a common set of semiconductor layers epitaxially formed on a common substrate. In some embodiments, a first and a second VCSEL diode are laterally adjacent and formed from a common set of semiconductor layers epitaxially formed on a common substrate, and an RCPD is formed on the second VCSEL diode. In some embodiments, a VCSEL diode may include two quantum well layers, with a tunnel junction layer between them. In some embodiments, an RCPD may be vertically integrated with a VCSEL diode.

Abstract: Embodiments are directed to electronic devices that include a surface emitting laser array including a first set of light emitters distributed across the surface emitting laser array and configured to emit laser light into an environment of the electronic device. The laser array can also include a second set of light emitters interspersed with the first set of light emitters, where each light emitter in the second set of light emitters includes a first set of layers defining a first mirror, a second set of layers defining a second mirror, and a third set of layers positioned between the first set of layers and the second set of layers and defining a laser cavity. The surface emitting laser array can include a light blocking material positioned on one or more of the second set of light emitters and configured to cause localized heating of the laser array.

Abstract: A manipulating device comprising: a rocker, a supporting member a magnetic assembly and a coil assembly, wherein the rocker is rotatable around the supporting member; the coil assembly is disposed opposite to the rocker, the magnetic assembly is disposed on one end of the rocker adjacent to the coil assembly; the magnetic assembly (3) comprising a central magnet (31) and at least one side magnets. By providing the magnetic assembly on the one end of the rocker adjacent to the coil assembly (4), the power for rotating the rocker is adjusted by interaction force between the magnetic assembly and the coil assembly, and the interaction force between the magnetic assembly and the coil assembly can be further adjusted by adjusting the magnitude of the current of the coil assembly.

Abstract: An optoelectronic device includes a semiconductor substrate and an array of emitters disposed on the substrate. The array includes a first sub-array, having a first pitch, disposed in a peripheral area of the substrate, a second sub-array, also having the first pitch, disposed in a central area of the substrate, which is contained within the peripheral area, and a third sub-array, having a second pitch finer than the first pitch, interleaved with the second sub-array in the central area of the substrate. Conductors disposed on the substrate are configured to activate the first, second, and third sub-arrays selectively.

Abstract: The disclosed systems and methods provide a framework for a proactive prediction of the toxic propensity of an article. Prior to the publication and/or reception of comments to online content, the disclosed framework determines the toxic propensity of the content's context and/or specific words, sentences, sentiments, tone or other messages receivable from consumption of the content. Thus, disclosed framework performs proactive forecasting of the content's toxicity propensity”, which quantifies how likely the content is prone to incur or attract toxic comments. The framework can function and/or be configured to operate in a manner that can perform specifically adherent moderation actions that correspond to the content and control how the content can be interacted with, based on the toxic propensity determination, prior to the content's publication in an effort to thwart, prevent or stop toxic environments surrounding or stemming from the content from coming into existence.

Abstract: Disclosed herein are self-mixing interference (SMI) sensors, frequency modulated continuous wave (FMCW) sensors, and electronic devices that include SMI and FMCW sensors. Both types of sensors include a photonic crystal surface-emitting laser diode. The SMI sensors include a photonic crystal surface-emitting laser diode configured to undergo SMI between a primary emitted light from the photonic crystal surface-emitting laser diode and reflections thereof from an object. The SMI sensor includes a photodetector configured to receive a secondary light emission from the photonic crystal surface-emitting laser diode and detect a parameter related to the SMI, from which distance or motion to the object may be inferred. The FMCW sensors include a photonic crystal surface-emitting laser diode configured to emit a primary light emission toward the object and a secondary light emission toward a light beam combiner.

Abstract: Embodiments described herein include an optoelectronic sensing device having a vertical cavity surface emitting laser (VCSEL), a resonance cavity photodetector (RCPD), and a tunnel junction. The VCSEL is at least partly defined by a first set of semiconductor layers disposed on a substrate. The first set of semiconductor layers includes a first active region. The VCSEL is configured to emit laser light towards the substrate, upon application of a first bias voltage, and undergo self-mixing interference upon reception of reflections or backscatters thereof. The RCPD is vertically adjacent to the VCSEL and is at least partly defined by a second set of semiconductor layers disposed on the substrate. The second set of semiconductor layers includes a second active region. The RCPD is configured to detect, upon application of a second bias voltage, the self-mixing interference. The tunnel junction is disposed between the first active region and the second active region.

Abstract: The disclosed systems and methods provide a framework for a proactive prediction of the toxic propensity of an article. Prior to the publication and/or reception of comments to online content, the disclosed framework determines the toxic propensity of the content's context and/or specific words, sentences, sentiments, tone or other messages receivable from consumption of the content. Thus, disclosed framework performs proactive forecasting of the content's toxicity propensity”, which quantifies how likely the content is prone to incur or attract toxic comments. The framework can function and/or be configured to operate in a manner that can perform specifically adherent moderation actions that correspond to the content and control how the content can be interacted with, based on the toxic propensity determination, prior to the content's publication in an effort to thwart, prevent or stop toxic environments surrounding or stemming from the content from coming into existence.

Abstract: A manipulating device comprising: a rocker, a supporting member a magnetic assembly and a coil assembly, wherein the rocker is rotatable around the supporting member; the coil assembly is formed to have an arc shape, an inner surface of the arc shape faces the rocker, the magnetic assembly is disposed on one end of the rocker adjacent to the coil assembly. According to the technical solution, by providing the magnetic assembly on the one end of the rocker adjacent to the coil assembly, the power for rotating the rocker is adjusted by interaction force between the magnetic assembly and the arc-shaped coil assembly, and the interaction force between the magnetic assembly and the coil assembly can be further adjusted by adjusting the magnitude of the current of the coil assembly.

Abstract: An optoelectronic apparatus includes a semiconductor substrate, an electrically activated spatial light modulator disposed on the semiconductor substrate, and a vertical-cavity surface-emitting laser (VCSEL) disposed over the spatial light modulator on the semiconductor substrate. A controller is coupled to actuate the VCSEL to emit a beam of optical radiation and to control the spatial light modulator so as to modify an optical property of the beam.

Abstract: An optoelectronic device includes a silicon interposer and an array of resonant cavity mesas. The array of resonant cavity mesas is monolithically integrated in a set of one or more epitaxial layers and flip-chip bonded to the silicon interposer. The array of resonant cavity mesas includes a first subset of resonant cavity mesas connected to a first subset of conductors of the silicon interposer and biased to a first electrical polarity, and a second subset of resonant cavity mesas connected to a second subset of conductors of the silicon interposer. The second subset of resonant cavity mesas provides electrostatic discharge (ESD) protection for the first subset of resonant cavity mesas.

Abstract: A laser assembly includes a set of one or more substrates having a first surface opposite a second surface. The set of one or more substrates defines a resonant cavity extension. The resonant cavity extension extends into the set of one or more substrates from an opening in the first surface. The laser assembly further includes a first reflector disposed within the resonant cavity extension and configured to reflect at least one wavelength of electromagnetic radiation received through the opening back through the opening; a laser having an active region configured to generate the at least one wavelength of electromagnetic radiation; and a second reflector. The active region is disposed in a resonant cavity extending between the first reflector and the second reflector. The resonant cavity includes the resonant cavity extension.

Abstract: The present teaching relates to method, system, medium, and implementations for text processing. Upon receiving input data including an original token and a ground truth token label for the original token, a manipulation is applied to the original token to generate a manipulated token based on which to generate manipulated input data. Training data is generated based on the manipulated input data, the ground truth token label, and a ground truth action that, when applied to the manipulated token, yields the original token with the ground truth token label. A text moderation model is trained based on the training data.

Abstract: Various embodiments of the present invention provide a method, system, and program product that perform the following operations: organizing a project having source code into a stacked-layer framework, the stacked-layer framework having: (i) a code layer including the source code of the project, (ii) a label layer including one or more label pages labelling the source code according to respective features of the source code, and (iii) a mask layer including one or more mask pages concealing portions of the source code according to labels of the label layer; receiving a request from a user to utilize a portion of the project, wherein the request includes a user requirement identifying one or more desired features; identifying a mask page of the one or more mask pages corresponding to the one or more desired features identified by the user requirement; and communicating the identified mask page to the user.

Abstract: An optoelectronic device includes a carrier substrate and a lower distributed Bragg-reflector (DBR) stack disposed on an area of the substrate and including alternating first layers. A set of epitaxial layers disposed over the lower DBR includes a quantum well structure. An upper DBR stack disposed over the set of epitaxial layers includes alternating second layers. Electrodes apply an excitation current to the quantum well structure. At least one of the electrodes includes a metal ring disposed at an inner side of at least one of the DBR stacks in proximity to the quantum well structure. One or more metal vias pass through the at least one of the DBR stacks so as to connect the metal ring at the inner side of the at least one of the DBR stacks to an electrical contact on an outer side of the at least one of the DBR stacks.

Abstract: Methods, systems, and computer program products for container image management are disclosed. In a method, a first group of operations that are performed in respective layers in a base image are obtained. A second group of operations that are performed in respective layers not comprised in the base image are obtained. The second group of operations are optimized based on a comparison between the first and second groups of operations. A destination container image is generated based on the optimized second group of operations and the base image.