公开(公告)号：US09806820B2

公开(公告)日：2017-10-31

申请号：US15199734

申请日：2016-06-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haili Wang ,  Xi Chen ,  Shiyu Xie ,  Shengmeng Fu

IPC: H04B10/04 ,  H04B10/50 ,  H04B10/564 ,  H04B10/079

CPC classification number: H04B10/504 ,  H04B10/07955 ,  H04B10/506 ,  H04B10/564

Abstract: Embodiments of the present invention disclose an optical transmitter and an optical transmission method. An embodiment of the present invention includes a directly modulated laser array and a micro-ring group array, where the directly modulated laser array may output multiple channels of optical signals, each directly modulated laser is correspondingly provided with one circular waveguide group and one first waveguide, each circular waveguide group may couple a part of optical signals output by a directly modulated laser corresponding to the circular waveguide group to a same second waveguide, and the second waveguide aggregates optical signals from circular waveguide groups and outputs an aggregated optical signals. The micro-ring group array implements not only filtering but also multiplexing, which effectively reduces a quantity of elements, reduces a size of an optical transmitter, and reduces costs.

公开(公告)号：US09225367B2

公开(公告)日：2015-12-29

申请号：US14747518

申请日：2015-06-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shengmeng Fu ,  Haili Wang ,  Shiyu Xie

IPC: H03H7/30 ,  H03H7/40 ,  H03K5/159 ,  H04B1/10 ,  H04L25/03 ,  H04B10/60 ,  H04B10/27 ,  H04B10/2575

CPC classification number: H04B1/10 ,  H04B10/2575 ,  H04B10/27 ,  H04B10/60 ,  H04B10/6971 ,  H04L25/03038 ,  H04L25/03057

Abstract: Embodiments of the present invention provide a decision feedback equalizer, which includes: a receive end, configured to receive a first differential signal, and input the first differential signal to the superimposer; a superimposer, configured to superimpose the first differential signal on a square-wave signal output by a adjusting unit to obtain a second differential signal; the adjusting unit, configured to perform phase and/or amplitude adjustment for a second square-wave signal; the first decision device is configured to compare a voltage amplitude of the second differential signal with a set value, and output a first square-wave signal; the second decision device is configured to compare the voltage amplitude of the second differential signal with a voltage amplitude of a signal adjusted by the adjusting unit, and input an obtained second square-wave signal to the adjusting unit. The embodiments of the present invention can reduce data edge jitter.

Abstract translation: 本发明的实施例提供了一种判决反馈均衡器，包括：接收端，被配置为接收第一差分信号，并将第一差分信号输入到叠加器; 叠加器，被配置为将第一差分信号叠加在由调整单元输出的方波信号上以获得第二差分信号; 所述调整单元被配置为对第二方波信号执行相位和/或幅度调整; 第一判定装置被配置为将第二差分信号的电压幅度与设定值进行比较，并输出第一方波信号; 第二判定装置被配置为将第二差分信号的电压幅度与由调整单元调整的信号的电压幅度进行比较，并将获得的第二方波信号输入到调整单元。 本发明的实施例可以减少数据边缘抖动。

公开(公告)号：US20150288395A1

公开(公告)日：2015-10-08

申请号：US14747518

申请日：2015-06-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shengmeng Fu ,  Haili Wang ,  Shiyu Xie

IPC: H04B1/10 ,  H04B10/2575 ,  H04B10/27 ,  H04L25/03 ,  H04B10/60

CPC classification number: H04B1/10 ,  H04B10/2575 ,  H04B10/27 ,  H04B10/60 ,  H04B10/6971 ,  H04L25/03038 ,  H04L25/03057

Abstract: Embodiments of the present invention provide a decision feedback equalizer, which includes: a receive end, configured to receive a first differential signal, and input the first differential signal to the superimposer; a superimposer, configured to superimpose the first differential signal on a square-wave signal output by a adjusting unit to obtain a second differential signal; the adjusting unit, configured to perform phase and/or amplitude adjustment for a second square-wave signal; the first decision device is configured to compare a voltage amplitude of the second differential signal with a set value, and output a first square-wave signal; the second decision device is configured to compare the voltage amplitude of the second differential signal with a voltage amplitude of a signal adjusted by the adjusting unit, and input an obtained second square-wave signal to the adjusting unit. The embodiments of the present invention can reduce data edge jitter.

Abstract translation: 本发明的实施例提供了一种判决反馈均衡器，包括：接收端，被配置为接收第一差分信号，并将第一差分信号输入到叠加器; 叠加器，被配置为将第一差分信号叠加在由调整单元输出的方波信号上以获得第二差分信号; 所述调整单元被配置为对第二方波信号执行相位和/或幅度调整; 第一判定装置被配置为将第二差分信号的电压幅度与设定值进行比较，并输出第一方波信号; 第二判定装置被配置为将第二差分信号的电压幅度与由调整单元调整的信号的电压幅度进行比较，并将获得的第二方波信号输入到调整单元。 本发明的实施例可以减少数据边缘抖动。