公开(公告)号：US09766399B2

公开(公告)日：2017-09-19

申请号：US15406182

申请日：2017-01-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wanyuan Liu ,  Xin Tu ,  Hongyan Fu

IPC: G02B6/12 ,  G02B6/13 ,  G02B6/125 ,  G02B6/122 ,  G02B6/136

CPC classification number: G02B6/125 ,  G02B6/1228 ,  G02B6/136 ,  G02B2006/12061

Abstract: A cross waveguide includes a first waveguide and a second waveguide, where the first waveguide and the second waveguide are mutually perpendicular and crosswise disposed, an area formed by a cross part of the first waveguide and the second waveguide is a cross area, the first waveguide and the second waveguide each include a shallow etching part and a core layer, and the shallow etching part is symmetrically distributed on two sides of the core layer in a length direction relative to an axis of the core layer. By appropriately adjusting a width of the core layer or a width of the shallow etching part, an energy loss generated during optical wave transmission in the cross waveguide can be effectively reduced.

公开(公告)号：US10067363B2

公开(公告)日：2018-09-04

申请号：US15187328

申请日：2016-06-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xin Tu ,  Hongyan Fu ,  Wanyuan Liu

IPC: G02B6/26 ,  G02F1/01 ,  G02B6/126 ,  G02B6/28 ,  G02F1/025 ,  G02F1/095

Abstract: Embodiments provide a polarizer and a polarization modulation system. The polarizer includes at least one MMI multi-mode waveguide, where one side of each MMI multi-mode waveguide is connected to an input waveguide, and the other side is connected to an output waveguide. An end portion of the side, on which the output waveguide is located, of the MMI multi-mode waveguide is provided with an adjustable portion, and the adjustable portion is connected to the output waveguide. The polarizer further includes a controller connected to the adjustable portion, where the controller is configured to perform control to change a material property of the adjustable portion, so that the output waveguide outputs optical signals in different polarization states.

公开(公告)号：US20170023808A1

公开(公告)日：2017-01-26

申请号：US15187328

申请日：2016-06-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xin Tu ,  Hongyan Fu ,  Wanyuan Liu

IPC: G02F1/01 ,  G02B6/28 ,  G02F1/095 ,  G02F1/025

CPC classification number: G02F1/0136 ,  G02B6/126 ,  G02B6/2813 ,  G02F1/0147 ,  G02F1/025 ,  G02F1/095 ,  G02F2201/05 ,  G02F2201/58 ,  G02F2202/10 ,  G02F2202/105 ,  G02F2203/07

Abstract: Embodiments provide a polarizer and a polarization modulation system. The polarizer includes at least one MMI multi-mode waveguide, where one side of each MMI multi-mode waveguide is connected to an input waveguide, and the other side is connected to an output waveguide. An end portion of the side, on which the output waveguide is located, of the MMI multi-mode waveguide is provided with an adjustable portion, and the adjustable portion is connected to the output waveguide. The polarizer further includes a controller connected to the adjustable portion, where the controller is configured to perform control to change a material property of the adjustable portion, so that the output waveguide outputs optical signals in different polarization states.

Abstract translation: 实施例提供偏振器和偏振调制系统。 偏振器包括至少一个MMI多模波导，其中每个MMI多模波导的一侧连接到输入波导，另一侧连接到输出波导。 MMI多模波导的输出波导所在的一侧的端部设置有可调节部分，并且可调部分连接到输出波导。 偏振器还包括连接到可调部分的控制器，其中控制器被配置为执行控制以改变可调部分的材料特性，使得输出波导输出具有不同极化状态的光信号。

公开(公告)号：US20170123155A1

公开(公告)日：2017-05-04

申请号：US15406182

申请日：2017-01-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wanyuan Liu ,  Xin Tu ,  Hongyan Fu

IPC: G02B6/125 ,  G02B6/136 ,  G02B6/122

CPC classification number: G02B6/125 ,  G02B6/1228 ,  G02B6/136 ,  G02B2006/12061

Abstract: A cross waveguide includes a first waveguide and a second waveguide, where the first waveguide and the second waveguide are mutually perpendicular and crosswise disposed, an area formed by a cross part of the first waveguide and the second waveguide is a cross area, the first waveguide and the second waveguide each include a shallow etching part and a core layer, and the shallow etching part is symmetrically distributed on two sides of the core layer in a length direction relative to an axis of the core layer. By appropriately adjusting a width of the core layer or a width of the shallow etching part, an energy loss generated during optical wave transmission in the cross waveguide can be effectively reduced.

公开(公告)号：US20170030802A1

公开(公告)日：2017-02-02

申请号：US15293904

申请日：2016-10-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wanyuan Liu ,  Hongyan Fu ,  Xin Tu

IPC: G01M11/00 ,  H04B10/073

CPC classification number: G01M11/33 ,  G01M11/02 ,  G01M11/31 ,  G01M11/331 ,  G01M11/35 ,  H04B10/071 ,  H04B10/073

Abstract: An apparatus is provided. The apparatus includes: a first main waveguide, configured to input and output a first optical signal; a first to-be-tested waveguide, configured to couple the first optical signal to generate a second optical signal, and transfer the second optical signal, an optical signal that is reflected by a second fiber Bragg grating, and an optical signal that is reflected by a first fiber Bragg grating. The apparatus also includes the first fiber Bragg grating, configured to totally reflect the optical signal that is reflected by the second fiber Bragg grating; the second fiber Bragg grating, configured to partially transmit and partially reflect the second optical signal and the optical signal that is reflected by the first fiber Bragg grating; and a first photoelectric detector, configured to receive an optical signal that is transmitted by the second fiber Bragg grating of the corresponding first to-be-tested waveguide.

Abstract translation: 提供了一种装置。 该装置包括：第一主波导，被配置为输入和输出第一光信号; 第一待测试波导，被配置为耦合第一光信号以产生第二光信号，并传送第二光信号，由第二光纤布拉格光栅反射的光信号和被反射的光信号 通过第一光纤布拉格光栅。 该装置还包括第一光纤布拉格光栅，其被配置为完全反射由第二光纤布拉格光栅反射的光信号; 第二光纤布拉格光栅，其被配置为部分地透射和部分地反射由第一光纤布拉格光栅反射的第二光信号和光信号; 以及第一光电检测器，被配置为接收由相应的待测试波导的第二光纤布拉格光栅传输的光信号。