Huawei Technologies Co., Limited

Shenzhen Yinwang Intelligent Technologies Co., Ltd.

Han Zhao

Liangjia Zong

Zhiyong Feng

Yunfei Yan

Ning Liu

Wei Ren Jia

Ning Deng

Lei Mao

Hui Xiang

Shimao Li

Chao Pan

Shengjun Liu

Zeshan Chang

Jinlei Wang

Mi Wang

Junke Duan

A vehicle light module includes a light source assembly, a driving assembly, and a shielding assembly. The driving assembly is connected to the shielding assembly. The light source assembly is configured to send a first beam to the shielding assembly, where the shielding assembly is located on a transmission optical path of the first beam. The driving assembly is configured to drive, according to a driving instruction, the shielding assembly to move, to change a relative position between the shielding assembly and the first beam. A second beam emitted from the shielding assembly is displayed on a path around the vehicle in a target light pattern. The shielding assembly includes at least one movable member, at least a part of the first beam is illuminated on the at least one movable member, and a shape of a cross section of the second beam corresponds to the target light pattern.

Vehicle light module, lighting system, and vehicle

An optical system. A light source component generates a light beam. A light adjustment component adjusts a ratio of the S-polarized light and a ratio of the P-polarized light in the light beam. A first polarization beamsplitter mirror component splits a light beam adjusted by the light adjustment component into a first light beam and a second light beam, where the first light beam is a light beam of the S-polarized light, and the second light beam is a light beam of the P-polarized light. The first lens component projects the first light beam or a modulated first light beam to a first region. The second lens component projects the second light beam or a modulated second light beam to a second region.

Optical system, illumination system, and display system

An optical switching apparatus includes an input port, a dispersion component, a first filter, a redirection component, and output ports. The input port enables a first and a second beam to be incident onto the dispersion component, which decomposes the first and the second beams respectively into a plurality of first and second sub-beams, where the plurality of first sub-beams and second sub-beams belong to different bands. The first filter separates transmission directions of the plurality of first and second sub-beams into different transmission directions in a first direction (X) based on the different bands, enables the plurality of first and second sub-beams respectively to be incident onto a first area and a second area of the redirection component, where the first and second areas are separated in the first direction.

Optical switching apparatus, redirection method, reconfigurable optical add/drop multiplexer, and system

A wavelength switching apparatus includes M input components, a first optical component, a first switch array, a second switch array, a second optical component, and K output components. The M input components include at least one local input component having N input ports, and a light beam input by the local input component can be converged, under an action of the first optical component, on a row of switch units that are in the first switch array and that are corresponding to the local input component. In this way, this is equivalent to further connecting an N*1-dimensional WSS to an input end of an M*K-dimensional WSS, so that the wavelength switching apparatus can integrate a wavelength adding function based on the M*K-dimensional WSS.

Wavelength switching apparatus and system

A frequency offset processing method, apparatus, and a storage medium, where the method includes: determining a frequency offset of a preset channel in a wavelength selective switch (WSS); determining a correspondence between a frequency offset and a wavelength or a correspondence between a frequency offset and a pixel position based on the frequency offset of the preset channel; and determining a frequency offset of a traffic channel according to the determined correspondence.

Frequency offset processing method, apparatus, and device and storage medium

Embodiments of the present invention provide a reconfigurable optical add/drop multiplexer, including: an input component, an output component, a beamsplitter, a first switch array, a wavelength dispersion system, a redirection system, and a second switch array. The input component includes M+P input ports, the output component includes N output ports, the beamsplitter is configured to: receive M input beams from M input ports, and split each of the M input beams into at least N parts, to obtain at least M&#xd7;N beams; the first switch array includes at least P switch units; and the second switch array includes N rows of switch units. The first switch array, the beamsplitter, the wavelength dispersion system, the redirection system, and the second switch array are arranged so that P optical add beams and sub-beams of M&#xd7;N beams in the at least M&#xd7;N beams can be routed to the N output ports.

Reconfigurable optical add/drop multiplexer

A liquid crystal on silicon, a wavelength selective switch, an alignment direction obtaining method, and a method for manufacturing a liquid crystal on silicon. The liquid crystal on silicon has a first pixel area, and a first liquid crystal located in the first pixel area. The first liquid crystal is deflected in a plane perpendicular to a first panel, and is deflected towards a first direction in a plane parallel to the first panel. An alignment direction of the first partial alignment film located in the first pixel area is deflected towards a second direction relative to a polarization direction of an incident beam, and the second direction is opposite to the first direction to reduce a loss of a deflected beam.

Wavelength selective switch, alignment direction obtaining method, and liquid crystal on silicon and method for manufacturing same

Embodiments of the present application provide a method and an apparatus for transmitting an optical signal and a wavelength selective switch. The transmission method includes: performing diffraction processing on an input optical signal, to obtain signal light and crosstalk light. The signal light is output to a target output port in a plurality of output ports. The diffraction processing includes deflecting, in a second direction, a diffraction direction of a part or all of the crosstalk light, so that the part or all of the crosstalk light is output to an area outside the output ports.

Method and apparatus for transmitting optical signal, and wavelength selective switch

A signal monitoring method and apparatus for a wavelength selective switch (WSS) are provided. The signal monitoring method for a wavelength selective switch WSS includes: encoding a phase of a first optical engine based on an input WDM signal, so that the WDM signal is split into a transmitted signal and a monitored signal after passing through the first optical engine; inputting the monitored signal to a second optical engine disposed at an output-side grating; and controlling the second optical engine to rotate in a wavelength plane of the WDM signal, so that monitored light of a specified wavelength in the monitored signal is output from the second optical engine at a preset angle.

Signal monitoring method and apparatus for wavelength selective switch WSS

The present invention discloses an optical power equilibrium method and apparatus. The method includes: configuring a liquid crystal on silicon LCOS as a blazed grating pattern whose phase periodically changes, where each period includes three grating segments, a pixel quantity in each period does not change, and a second grating segment is located between a first grating segment and a third grating segment; monitoring power of wavelength signals in a WDM signal, where the WDM signal includes a first wavelength signal; and reducing a phase modulation depth and a pixel quantity of the second grating segment in each period at a first location if power of the first wavelength signal is greater than preset target power, so that the power of the first wavelength signal is the same as the target power, where the first location is a location at which the first wavelength signal is incident to the LCOS.

Optical power equilibrium method and apparatus

A wavelength selective switch (WSS), including an input optical fiber collimation array, a first optical switching engine, a dispersion device, an optical path converter, a second optical switching engine, a third optical switching engine, and an output optical fiber collimation array. A first beam is input from a first port of the input optical fiber collimation array. The first optical switching engine performs angle deflection on the first beam on a first plane. The dispersion device demultiplexes, on a second plane, the angle-deflected first beam into multiple sub-wavelength beams. The second optical switching engine performs angle deflection on the multiple sub-wavelength beams that are obtained by demultiplexing. The dispersion device multiplexes, on the second plane, the angle-deflected multiple sub-wavelength beams. The third optical switching engine performs angle deflection on the multiplexed multiple sub-wavelength beams on the first plane.

Wavelength selective switch, reconfigurable optical add/drop multiplexer, and wavelength selection method

A wavelength selective switch (WSS) includes a liquid crystal on silicon (LCOS) panel and a fiber array with multiple ports. The two outermost ports of the multiple ports are a first port and a second port. An included angle between an intersecting line of the LCOS panel and a first plane in which the incident light entering the LCOS panel and emergent light exiting the LCOS panel are located, and incident light entering the LCOS panel is (90&#x2212;&#x3b8;) degrees, where a wavelength of the incident light is same as a wavelength of the emergent light, &#x3b8; is less than 15 degrees, the first port and the included angle of (90&#x2212;&#x3b8;) degrees are located on a same side of the incident light, and the second port and the included angle of (90&#x2212;&#x3b8;) degrees are separately located on two sides of the incident light.

Wavelength selective switch

A wavelength selective switch includes: N input ports, an input-side fiber array, an input-side collimator array, an input-side beam deformation and polarization conversion component, an input-side wave-demultiplexing component, an input-side switching engine, a focusing transformation lens group, an output-side switching engine, an output-side wave-combining component, an output-side beam deformation and polarization conversion component, an output-side collimator array, an output-side fiber array, and M output ports. The focusing transformation lens group includes two identical aspheric convex lenses that are placed in parallel, where a curvature from a center to an edge of a surface of the aspheric convex lens changes continuously. A spatial position of the focusing transformation lens group and the curvature from the center to the edge of the surface are so set that light with different wavelengths from the input-side switching engine is focused to a corresponding position of the output-side switching engine respectively.

The present invention discloses a wavelength selective switch and a method for controlling a spatial phase modulator in a wavelength selective switch. The wavelength selective switch includes: a first demultiplexing/multiplexing component, configured to split, an input multi-wavelength optical signal into multiple single-wavelength optical signals; a spatial phase modulator, configured to change a transmission direction of each single-wavelength optical signal included in the multiple single-wavelength optical signals, where the spatial phase modulator is further configured to split a first single-wavelength optical signal in the multiple single-wavelength optical signals into a first light beam and a second light beam, where the first light beam is incident on an output port, and the second light beam is incident on a monitoring port; a photoelectric detector, configured to receive the second light beam; and a performance monitoring component, configured to perform performance monitoring on the received second light beam.

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Dongguan, China

Han Zhao