Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: A method for selecting a grasp posture of a dual-arm robot includes: setting a fitness value range, an iteration quantity threshold, and a fitness function; calculating the fitness value of the population, determining whether the population is within the value range, ending an iteration if the population is within the value range or continuing to determine whether a quantity of iterations reaches the iteration quantity threshold if the population is not within the value range, ending the iteration if the quantity of iterations reaches the iteration quantity threshold or performing crossover and mutation operations if the quantity of iterations does not reach the iteration quantity threshold, and dynamically selecting a gene retention strategy based on an iteration depth and a fitness value to retain a gene; updating a gene population representing a grasping position and performing determining cyclically; and obtaining an optimal target corresponding to dual arms after the iteration.

Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: A few-mode light detection and ranging (LIDAR) system may include an illumination source to generate an illumination beam, one or more transmission optics to direct at least a portion of the illumination beam within a field of view, one or more collection optics to collect return light from an object in the field of view illuminated by the illumination beam, wherein the collected return light includes a plurality of spatial modes, a few-mode optical amplifier to optically amplify portions of the return light propagating along at least two of the plurality of spatial modes, and a detector configured to convert output light from the few-mode optical amplifier to an output electrical signal.

Abstract: Photonic units for vector-vector multiplication, matrix-vector multiplication, matrix-matrix multiplication, batch matrix-matrix multiplication, and tensor-tensor multiplication are described. Multiplications are through coherent mixing and square-law detection. There are many dimensions—wavelength, vector mode, quadrature, and three dimensions of space—that can be used to construct photonic accelerators. The encoded input vector or input matrix is fanned out into a desired number of copies and mixed with the corresponding encoded local oscillators containing the weight vectors comprising the weight matrix. Any subset of two (three) dimensions can be used to construct photonic accelerators for matrix-vector (matrix-matrix) multiplications. Multiple dimensions can be combined into a hyperdimension to increase the scalability.

Abstract: A mode demultiplexing hybrid (MDH) that integrates mode demultiplexing, local oscillator power splitting, and optical 90-degree hybrid using multi-plane light conversion (MPLC). Reflective cavity and transmissive systems are disclosed. The MDH may fine advantageous application as the optical front end for a coherent receiver in a space-division multiplexing (SDM) system.

Abstract: A mode demultiplexing hybrid (MDH) that integrates mode demultiplexing, local oscillator power splitting, and optical 90-degree hybrid using multi-plane light conversion (MPLC). Reflective cavity and transmissive systems are disclosed. The MDH may fine advantageous application as the optical front end for a coherent receiver in a space-division multiplexing (SDM) system.

Abstract: An accessible processing method of webpage contents and accessible webpage device are provided. The foregoing accessible processing method may include the follows. A document outline list tag is added to a webpage. After the document outline list tag obtains a focus, the following is further included. All title tags of a specified level in current webpage may be traversed. An anchor point may be added to each title tag of the specified level. Text information of each title tag of the specified level may be respectively copied to a corresponding link newly established. The link newly established may be enabled to point to an anchor point of a corresponding title label. Each link newly established may be taken as a list item. The list item may be added to the document outline list tag.

Abstract: An optical fiber system including an optical fiber and an optical grating is provided. The optical fiber is configured to support M mode groups, where differences in effective refractive index between adjacent mode groups are substantially equal. The optical grating is optically coupled to the optical fiber, and has a period inversely proportional to the difference in effective refractive index between adjacent mode groups. The optical grating is configured to couple all adjacent mode groups in the optical fiber.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for categorizing items presented on webpages. An example method includes: extracting text and an image from a webpage including an item to be categorized; providing the text as input to at least one text classifier; providing the image as input to at least one image classifier; receiving at least one first score as output from the at least one text classifier, the at least one first score including a first predicted category for the item; receiving at least one second score as output from the at least one image classifier, the at least one second score including a second predicted category for the item; and combining the at least one first score and the at least one second score to determine a final predicted category for the item.

Abstract: A system for automatically embedding behavior collection components into a mobile device application; the system includes a user interface module, a recording module, a marking module, and an embedding module. The user interface module provides an operation interface which includes tracking items. The tracking items correspond to behavior collection components. The behavior collection components transmit operation information of the mobile device to a server. The recording module records relational information respectively corresponds to each of the behavior collection components, and each relational information is a relational function selected from of a plurality of relational functions of a library. The marking module determines and marks embedding positions of the behavior collection components in the mobile device application based on the behavior collection components of the selected tracking items and relational information thereof.

Abstract: As disclosed herein a method, executed by a computer, includes launching a session corresponding to a test environment, saving a session context to provide a saved session context, and associating the saved session context with a defect record entered in a defect tracking system. The method further includes receiving a request to recreate the test environment using the saved session context and reconnecting to a session corresponding to the saved session context, in response to receiving the request to recreate the test environment. The method further includes terminating the session corresponding to the saved session context, in response to verifying resolution of an error identified in the defect record. A computer system, and a computer program product corresponding to the method are also disclosed herein.

Abstract: As disclosed herein a method, executed by a computer, includes launching a session corresponding to a test environment, saving a session context to provide a saved session context, and associating the saved session context with a defect record entered in a defect tracking system. The method further includes receiving a request to recreate the test environment using the saved session context and reconnecting to a session corresponding to the saved session context, in response to receiving the request to recreate the test environment. The method further includes terminating the session corresponding to the saved session context, in response to verifying resolution of an error identified in the defect record. A computer system, and a computer program product corresponding to the method are also disclosed herein.

Abstract: Analog and digital fiber-optic telecommunication links using high-order modes in few-mode fibers (FMFs) to improve the Spurious Free Dynamic Range (SFDR) and reduce wavelength division multiplexing (WDM) penalties due to fiber nonlinearities. Methods and applications.

Abstract: An optical device and a method of using an optical filter are provided. The optical device includes an optical filter and a narrowband optical source. The optical filter has a refractive index that varies along a length of the optical filter. The narrowband optical source is in optical communication with the optical filter and is configured to generate light having a wavelength at or in the vicinity of at least one of a wavelength corresponding to a local transmission maximum and a wavelength corresponding to a maximum slop of the group index spectrum of the optical filter.

Abstract: An optical device, a method of configuring an optical device, and a method of using a fiber Bragg grating is provided. The optical device includes a fiber Bragg grating, a narrowband optical source, and at least one optical detector. The fiber Bragg grating has a power transmission spectrum as a function of wavelength with one or more resonance peaks, each comprising a local maximum and two non-zero-slope regions with the local maximum therebetween. The light generated by the narrowband optical source has a wavelength at a non-zero-slope region of a resonance peak that is selected such that one or more of the following quantities, evaluated at the resonance peak, is at a maximum value: (a) the product of the group delay spectrum and the power transmission spectrum and (b) the product of the group delay spectrum and one minus the power reflection spectrum.