公开(公告)号：US20160124157A1

公开(公告)日：2016-05-05

申请号：US14950877

申请日：2015-11-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chunhui ZHANG ,  Chendi JIANG

IPC: G02B6/35

CPC classification number: G02B6/3518 ,  G02B6/3556

Abstract: A 3D-MEMS optical switch, comprising: a collimator array, a PD array, a window glass which covers the PD array and is coated with a partial reflection film, a micro-electro mechanical system (MEMS) micro-mirror, and a core optical switch controller connected to the PD array and the MEMS micro-mirror. The PD array is integrated inside the core optical switch, so that the architecture and the volume of the optical switch are simplified. The window glass which covers the PD array and is coated with a partial reflection film is used to fold an optical path, and some optical signals are transmitted onto the PD array, so that the core optical switch controller adjusts the MEMS micro-mirror according to the optical power of the optical signals detected by the PD array, so as to enable the insertion loss of the 3D-MEMS optical switch to meet a preset attenuation range.

Abstract translation: 一种3D-MEMS光开关，包括：准直器阵列，PD阵列，覆盖PD阵列并且涂覆有部分反射膜的窗玻璃，微机电系统（MEMS）微镜和芯 光开关控制器连接到PD阵列和MEMS微镜。 PD阵列集成在核心光开关内部，从而简化了光开关的结构和体积。 覆盖PD阵列并涂覆有部分反射膜的窗玻璃用于折叠光路，并且一些光信号被传输到PD阵列上，使得核心光开关控制器根据 由PD阵列检测到的光信号的光功率，使得3D-MEMS光开关的插入损耗能够满足预设的衰减范围。

公开(公告)号：US20230155687A1

公开(公告)日：2023-05-18

申请号：US18157197

申请日：2023-01-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chunhui ZHANG ,  Shengyong YAN ,  Lei XIONG

IPC: H04B10/61 ,  H04B10/079 ,  H04B10/112

CPC classification number: H04B10/614 ,  H04B10/112 ,  H04B10/07955

Abstract: This application provides an optical emission apparatus, an optical communication system, and an optical communication method. Light beams of N optical emission units in the optical emission apparatus are adjusted, so that an optical power of entering an optical receiving apparatus is maximized, and impact of a speckle caused by turbulence is minimized, thereby improving receiving efficiency of an optical antenna. The optical emission apparatus includes a first optical splitter and N optical emission units, where N is an integer greater than 1; the first optical splitter is configured to transmit received same signal light to the N optical emission units; and the N optical emission units are configured to output the signal light from the first optical splitter, to obtain light beams distributed based on a preset proportion.

公开(公告)号：US20220075119A1

公开(公告)日：2022-03-10

申请号：US17527757

申请日：2021-11-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuping WU ,  Chunhui ZHANG ,  Changzheng SU

IPC: G02B6/26 ,  H04B10/61 ,  H04B10/80 ,  H04J14/02

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：US20190158941A1

公开(公告)日：2019-05-23

申请号：US16241117

申请日：2019-01-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chunhui ZHANG ,  Peng ZHANG ,  Shengyong YAN

IPC: H04Q11/00

CPC classification number: H04Q11/0005 ,  H04B10/25 ,  H04Q11/0003 ,  H04Q2011/0039 ,  H04Q2011/0041 ,  H04Q2011/0058

Abstract: This application discloses a method and an apparatus for controlling an optical switch matrix. The method includes: setting row drives corresponding to P input ports to a reset row drive value, and setting column drives corresponding to Q output ports to a reset column drive value, so that optical switches at intersections are in a first state; successively setting, based on time, a row drive corresponding to an ith input port to values in a switching row drive sequence, and successively setting, based on time, a column drive corresponding to a jth output port to values in a switching column drive sequence, so that a target optical switch in the P×Q optical switches remains in the first state, and the other optical switches are switched from the first state to a second state in first time periods.