公开(公告)号：US11880068B2

公开(公告)日：2024-01-23

申请号：US17527757

申请日：2021-11-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuping Wu ,  Chunhui Zhang ,  Changzheng Su

IPC: H04B10/60 ,  G02B6/26 ,  H04B10/61 ,  H04B10/80 ,  H04J14/02 ,  H04B10/11 ,  H04B10/67 ,  H04B10/112

CPC classification number: G02B6/26 ,  H04B10/61 ,  H04B10/801 ,  H04J14/02 ,  H04B10/11 ,  H04B10/1121 ,  H04B10/60 ,  H04B10/615 ,  H04B10/67

Abstract: A space optical coupling apparatus, including M first couplers, a phase adjustment apparatus, N beam splitters, M second couplers, a coupling apparatus, and a controller. The first coupler receives a beam, and couples the beam to the phase adjustment apparatus. The phase adjustment apparatus includes M phase adjusters, N beam splitters, and N detectors. Each beam splitter is configured to split a received beam into two beams, one sent to a corresponding detector and the other sent to a corresponding phase adjuster. The second coupler receives output light from the coupling apparatus, and transmits the output light into the space. The coupling apparatus is configured to couple a beam onto a single-mode fiber. The controller is configured to control, based on the beam intensity detected by the detector and the beam intensity on the single-mode fiber, the M phase adjusters to adjust the phases of the received beams.

公开(公告)号：US20240361516A1

公开(公告)日：2024-10-31

申请号：US18770283

申请日：2024-07-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lin Zhang ,  Yuping Wu ,  Bofang Zheng ,  Yang Wang ,  Zhiqun Yang

IPC: G02B6/02 ,  G02B6/12 ,  H04B10/61

CPC classification number: G02B6/02042 ,  G02B6/02038 ,  H04B10/616 ,  G02B2006/12061

Abstract: A light receiving module is provided, including a beam contraction module, a multi-core multi-mode waveguide, and a detector. The beam contraction module is configured to receive a first optical signal, and contract a mode spot of the first optical signal, to obtain a second optical signal. The multi-core multi-mode waveguide includes a cladding layer and N waveguides. The multi-core multi-mode waveguide is configured to: receive the second optical signal, and concentrate energy of the second optical signal in a plurality of waveguides of the N waveguides, to obtain a plurality of third optical signals. A plurality of sub-detectors are in one-to-one correspondence with the plurality of third optical signals. The plurality of sub-detectors are configured to receive the plurality of third optical signals, to obtain a plurality of electrical signals based on the plurality of third optical signals.

公开(公告)号：US11686616B2

公开(公告)日：2023-06-27

申请号：US17671636

申请日：2022-02-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenye Liang ,  Yuping Wu ,  Zhengjun Wei

IPC: G01J1/44 ,  G01J1/46

CPC classification number: G01J1/46 ,  G01J2001/442

Abstract: This application provides a single-photon detection apparatus that includes a phase-reversed reflection branch, a single-photon sensing device, a phase-unreversed reflection branch. An input signal is divided into a first and a second input signals, and the two input signals respectively arrive at the phase-reversed reflection branch and the single-photon sensing device. The phase-reversed reflection branch is configured to perform phase-reversed reflection processing on the first input signal, to obtain a phase-reversed signal. The single-photon sensing device is configured to send the second input signal to the phase-unreversed reflection branch, and is further configured to sense a photon, generate photon information, and output a first branch signal. The phase-unreversed reflection branch is configured to perform phase-unreversed reflection processing on the second input signal to obtain a second branch signal. The first branch signal is superimposed with the second branch signal, to obtain the photon information.