公开(公告)号：US08780340B2

公开(公告)日：2014-07-15

申请号：US13693657

申请日：2012-12-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zebin Li ,  Degang Zhong ,  Shengping Li ,  Changliang Yu

IPC: G01N21/00 ,  G01J1/04 ,  G01J1/42 ,  G01J5/08 ,  G01M11/00

CPC classification number: G01M11/3109 ,  G01M11/3145 ,  H04B10/071 ,  H04B10/272 ,  H04Q11/0067 ,  H04Q2011/0083

Abstract: Embodiments of the present disclosure disclose an OTDR test signal modulation circuit, including a laser diode drive, a laser diode, a current adjusting unit, and an OTDR control unit. The laser diode drive is connected to the laser diode and is configured to drive, according to an input data signal, the laser diode to transmit data light. The current adjusting unit is connected to the laser diode and the OTDR control unit and is configured to adjust a current flowing through the laser diode according to an OTDR test signal provided by the OTDR control unit, so as to modulate the OTDR test signal to the data light transmitted by the laser diode. Moreover, the embodiments of the present disclosure also disclose a passive optical network system and apparatus.

Abstract translation: 本公开的实施例公开了包括激光二极管驱动器，激光二极管，电流调节单元和OTDR控制单元的OTDR测试信号调制电路。 激光二极管驱动器连接到激光二极管，并配置为根据输入数据信号驱动激光二极管传输数据光。 电流调节单元连接到激光二极管和OTDR控制单元，并且被配置为根据由OTDR控制单元提供的OTDR测试信号来调节流过激光二极管的电流，以便将OTDR测试信号调制到 由激光二极管传输的数据光。 此外，本公开的实施例还公开了一种无源光网络系统和装置。

公开(公告)号：US09705023B2

公开(公告)日：2017-07-11

申请号：US15234256

申请日：2016-08-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changliang Yu ,  Zhenxing Liao ,  Yanli Zhao

IPC: H01L31/107 ,  H01L31/18 ,  G02B6/122 ,  G02B6/13 ,  H01L31/0224 ,  H01L31/0232 ,  H01L31/028 ,  G02B6/12

CPC classification number: H01L31/1075 ,  G02B6/12004 ,  G02B6/1228 ,  G02B6/131 ,  G02B6/4295 ,  G02B2006/12061 ,  H01L31/022408 ,  H01L31/02327 ,  H01L31/028 ,  H01L31/035281 ,  H01L31/107 ,  H01L31/18 ,  H01L31/1804 ,  Y02E10/547

Abstract: An avalanche photodiode includes a GeOI substrate; an I—Ge absorption layer configured to absorb an optical signal and generate a photo-generated carrier; a first p-type SiGe layer, a second p-type SiGe layer, a first SiGe layer, and a second SiGe layer, where a Si content in any one of the SiGe layers is less than or equal to 20%; a first SiO2 oxidation layer and a second SiO2 oxidation layer; a first taper type silicon Si waveguide layer and a second taper type silicon Si waveguide layer; a heavily-doped n-type silicon Si multiplication layer; and anode electrodes and a cathode electrode.

公开(公告)号：US20160351743A1

公开(公告)日：2016-12-01

申请号：US15234256

申请日：2016-08-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changliang Yu ,  Zhenxing Liao ,  Yanli Zhao

IPC: H01L31/107 ,  H01L31/0232 ,  G02B6/13 ,  H01L31/18 ,  G02B6/122 ,  H01L31/028 ,  H01L31/0224

CPC classification number: H01L31/1075 ,  G02B6/12004 ,  G02B6/1228 ,  G02B6/131 ,  G02B6/4295 ,  G02B2006/12061 ,  H01L31/022408 ,  H01L31/02327 ,  H01L31/028 ,  H01L31/035281 ,  H01L31/107 ,  H01L31/18 ,  H01L31/1804 ,  Y02E10/547

Abstract: An avalanche photodiode includes a GeOI substrate; an I—Ge absorption layer configured to absorb an optical signal and generate a photo-generated carrier; a first p-type SiGe layer, a second p-type SiGe layer, a first SiGe layer, and a second SiGe layer, where a Si content in any one of the SiGe layers is less than or equal to 20%; a first SiO2 oxidation layer and a second SiO2 oxidation layer; a first taper type silicon Si waveguide layer and a second taper type silicon Si waveguide layer; a heavily-doped n-type silicon Si multiplication layer; and anode electrodes and a cathode electrode.

Abstract translation: 雪崩光电二极管包括GeOI衬底; 配置为吸收光信号并产生光生载体的I-Ge吸收层; 第一p型SiGe层，第二p型SiGe层，第一SiGe层和第二SiGe层，其中任一SiGe层中的Si含量小于或等于20％; 第一SiO 2氧化层和第二SiO 2氧化层; 第一锥形硅Si波导层和第二锥形硅Si波导层; 重掺杂的n型硅Si倍增层; 和阳极电极和阴极电极。

公开(公告)号：US09106333B2

公开(公告)日：2015-08-11

申请号：US13894767

申请日：2013-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Degang Zhong ,  Zebin Li ,  Changliang Yu ,  Shengping Li

IPC: H04B10/08 ,  H04B17/00 ,  H04B10/07 ,  H04B10/071

CPC classification number: H04B10/07 ,  H04B10/071

Abstract: A method for testing an optical fiber includes: receiving a test optical signal from an optical fiber network, and converting the test optical signal into a test current signal; receiving, by a transimpedance amplifier, the test current signal by using a first working mode and outputting a first test voltage signal; acquiring a swing of the first test voltage signal, and determining whether the swing of the first test voltage signal meets a preset condition; and receiving, by the transimpedance amplifier, the test current signal by using a second working mode and outputting a second test voltage signal when the swing of the first test voltage signal meets the preset condition, where an upper limit and a lower limit of a receiver dynamic range when the transimpedance amplifier works in the first working mode are different from those when the transimpedance amplifier works in the second working mode.

Abstract translation: 一种用于测试光纤的方法包括：从光纤网络接收测试光信号，并将测试光信号转换成测试电流信号; 通过使用第一工作模式通过跨阻抗放大器接收测试电流信号并输出​​第一测试电压信号; 获取所述第一测试电压信号的摆幅，并且确定所述第一测试电压信号的摆幅是否满足预设条件; 并且通过所述跨阻放大器通过使用第二工作模式接收所述测试电流信号，并且当所述第一测试电压信号的摆幅满足所述预设条件时，输出第二测试电压信号，其中接收器的上限和下限 当跨阻放大器工作在第一工作模式时的动态范围与跨阻放大器工作在第二工作模式时的动态范围不同。

公开(公告)号：US20130259470A1

公开(公告)日：2013-10-03

申请号：US13894767

申请日：2013-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Degang Zhong ,  Zebin Li ,  Changliang Yu ,  Shengping Li

IPC: H04B10/07

CPC classification number: H04B10/07 ,  H04B10/071

Abstract: A method for testing an optical fiber includes: receiving a test optical signal from an optical fiber network, and converting the test optical signal into a test current signal; receiving, by a transimpedance amplifier, the test current signal by using a first working mode and outputting a first test voltage signal; acquiring a swing of the first test voltage signal, and determining whether the swing of the first test voltage signal meets a preset condition; and receiving, by the transimpedance amplifier, the test current signal by using a second working mode and outputting a second test voltage signal when the swing of the first test voltage signal meets the preset condition, where an upper limit and a lower limit of a receiver dynamic range when the transimpedance amplifier works in the first working mode are different from those when the transimpedance amplifier works in the second working mode.

Abstract translation: 一种用于测试光纤的方法包括：从光纤网络接收测试光信号，并将测试光信号转换成测试电流信号; 通过使用第一工作模式通过跨阻抗放大器接收测试电流信号并输出​​第一测试电压信号; 获取所述第一测试电压信号的摆幅，并且确定所述第一测试电压信号的摆幅是否满足预设条件; 并且通过所述跨阻放大器通过使用第二工作模式接收所述测试电流信号，并且当所述第一测试电压信号的摆幅满足所述预设条件时，输出第二测试电压信号，其中接收器的上限和下限 当跨阻放大器工作在第一工作模式时的动态范围与跨阻放大器工作在第二工作模式时的动态范围不同。