公开(公告)号：US20240255757A1

公开(公告)日：2024-08-01

申请号：US18633008

申请日：2024-04-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Han Zhao ,  Lei Mao ,  Zhiyong Huang ,  Xiao Li

IPC: G02B27/01 ,  G02B5/10 ,  G02B5/30

CPC classification number: G02B27/0101 ,  G02B5/10 ,  G02B5/3083 ,  G02B2027/013

Abstract: A display apparatus includes a picture generation unit, a transflective member, and a curved mirror. The picture generation unit is configured to generate imaging light including image information and project the imaging light to the transflective member, the transflective member is configured to reflect the imaging light to the curved mirror, the curved mirror is configured to reflect received imaging light to the transflective member, and the transflective member is further configured to transmit the imaging light reflected by the curved mirror.

公开(公告)号：US20240015421A1

公开(公告)日：2024-01-11

申请号：US18474758

申请日：2023-09-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zeshan Chang ,  Guangcan Mi ,  Han Zhao

IPC: H04Q11/00 ,  H04J14/02

CPC classification number: H04Q11/0005 ,  H04J14/0212 ,  H04Q2011/0016

Abstract: An optical communication system includes a sending device, an optical cross-connect (OXC) device, and a first receiving device. The sending device is configured to send a modulated first service optical signal to the OXC device. The OXC device is configured to receive the modulated first service optical signal through a first input port, and divide the modulated first service optical signal into N1 first optical signals based on a wavelength. The OXC device is configured to send M1 first optical signals to the first receiving device through M1 first output ports.

公开(公告)号：US20230100718A1

公开(公告)日：2023-03-30

申请号：US17994605

申请日：2022-11-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Jia ,  Han Zhao

IPC: H04J14/02 ,  H04Q11/00

Abstract: 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.

公开(公告)号：US10560186B2

公开(公告)日：2020-02-11

申请号：US16378527

申请日：2019-04-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liangjia Zong ,  Han Zhao ,  Zhiyong Feng ,  Yunfei Yan

IPC: H04B10/079 ,  H04B10/548 ,  H04J14/02

Abstract: 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.

公开(公告)号：US10133005B2

公开(公告)日：2018-11-20

申请号：US15866058

申请日：2018-01-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunfei Yan ,  Han Zhao ,  Zhiyong Feng

IPC: G02B6/35 ,  G02B6/293 ,  H04Q11/00 ,  G02B6/27 ,  G02B6/32 ,  H04J14/02

Abstract: 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.

公开(公告)号：US09977190B2

公开(公告)日：2018-05-22

申请号：US15636941

申请日：2017-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liangjia Zong ,  Han Zhao

IPC: G02B6/293 ,  G02B26/08 ,  G02B6/35

CPC classification number: G02B6/293 ,  G02B6/2931 ,  G02B6/29395 ,  G02B6/3512 ,  G02B6/3534 ,  G02B6/3548 ,  G02B6/3556 ,  G02B6/356 ,  G02B6/3588 ,  G02B26/08

Abstract: 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−θ) degrees, where a wavelength of the incident light is same as a wavelength of the emergent light, θ is less than 15 degrees, the first port and the included angle of (90−θ) degrees are located on a same side of the incident light, and the second port and the included angle of (90−θ) degrees are separately located on two sides of the incident light.

公开(公告)号：US20180128984A1

公开(公告)日：2018-05-10

申请号：US15866058

申请日：2018-01-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunfei Yan ,  Han Zhao ,  Zhiyong Feng

IPC: G02B6/35 ,  G02B6/293 ,  G02B6/32 ,  G02B6/27

CPC classification number: G02B6/3546 ,  G02B6/2773 ,  G02B6/293 ,  G02B6/29371 ,  G02B6/2938 ,  G02B6/32 ,  G02B6/3512 ,  G02B6/3524 ,  G02B6/356 ,  G02B6/3594 ,  H04J14/0212 ,  H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/0026 ,  H04Q2011/0035 ,  H04Q2011/0039

Abstract: 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.