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1. 发明授权

US10277315B2 Method and apparatus for monitoring wavelength channel 有权
公开(公告)号：US10277315B2
公开(公告)日：2019-04-30
申请号：US15262632
申请日：2016-09-12
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： Ning Deng , Juan Wang
IPC分类号： H04B10/079 , H04J14/02 , H04B10/548
摘要： A method and an apparatus for monitoring a wavelength channel are disclosed. The method includes: performing optical-to-electrical detection on an optical signal on a wavelength channel, to obtain an electrical signal; obtaining a frequency spectrum of the electrical signal; determining a first parameter M according to an equation M=NAC, where NAC represents an alternating current component of the frequency spectrum of the electrical signal; and if M is greater than a preset first threshold, determining that the wavelength channel includes a real service signal. According to the method and apparatus, an erroneous configuration or operation of a network management system can be avoided.

2. 发明授权

US09941969B2 Method for controlling modulation depth of pilot signal, transmitter, and pilot locking apparatus 有权
公开(公告)号：US09941969B2
公开(公告)日：2018-04-10
申请号：US15282697
申请日：2016-09-30
申请人： Huawei Technologies Co., Ltd.
发明人： Juan Wang , Ning Deng , Xiaodong Luo , Zhiyong Feng
IPC分类号： H04B10/04 , H04B10/50 , H04B10/079 , H04B10/54
CPC分类号： H04B10/5057 , H04B10/0795 , H04B10/541 , H04B2210/075
摘要： A transmitter includes a pilot loading apparatus, an optical modulator, and a pilot locking apparatus. The pilot locking apparatus is configured to determine a pilot operating point that is currently on a response curve and that is of the optical modulator, and a target initial amplitude of an electrical pilot signal. The pilot locking apparatus is further configured to control the pilot loading apparatus to adjust an initial amplitude of the electrical pilot signal to the target initial amplitude.

3. 发明授权

US09621263B2 Method, apparatus, node device and network system for detecting optical signal-to-noise ratio 有权
公开(公告)号：US09621263B2
公开(公告)日：2017-04-11
申请号：US14493540
申请日：2014-09-23
申请人： Huawei Technologies Co., Ltd.
发明人： Yijia Wei , Juan Ni , Zhiyong Feng , Ning Deng
IPC分类号： H04B10/079 , H04B10/077
CPC分类号： H04B10/07953 , H04B10/0775 , H04B2210/075
摘要： The present invention discloses a method and an apparatus for detecting an optical signal-to-noise ratio, a node device, and a network system. The method includes: receiving a detected optical signal carrying amplified spontaneous emission ASE noise; detecting a first alternating current component and a first direct current component of the detected optical signal; acquiring first modulation information of the detected optical signal; acquiring first correction information corresponding to the first modulation information according to the first modulation information; and determining an optical signal-to-noise ratio OSNR of the detected optical signal according to the first alternating current component, the first direct current component, and the first correction information.

4. 发明授权

US11316591B2 Frequency offset processing method, apparatus, and device and storage medium 有权
公开(公告)号：US11316591B2
公开(公告)日：2022-04-26
申请号：US17150661
申请日：2021-01-15
申请人： Huawei Technologies Co., Ltd.
发明人： Wei Jia , Chao Pan , Han Zhao , Ning Deng
IPC分类号： H04B10/572 , H04B10/077 , H04B10/079 , H04B10/50 , H04B10/548
摘要： A frequency offset processing method, apparatus, and a storage medium, where the method includes: determining a frequency offset of a preset channel in a wavelength selective switch (WSS); determining a correspondence between a frequency offset and a wavelength or a correspondence between a frequency offset and a pixel position based on the frequency offset of the preset channel; and determining a frequency offset of a traffic channel according to the determined correspondence.

5. 发明申请

US20180198550A1 OADM NODE AND METHOD IN WDM SYSTEM 审中-公开
公开(公告)号：US20180198550A1
公开(公告)日：2018-07-12
申请号：US15914716
申请日：2018-03-07
申请人： Huawei Technologies Co., Ltd.
发明人： Ning Deng , Shiyi Cao , Jun Luo
IPC分类号： H04J14/02 , H04Q11/00 , H04B10/2581 , H04B10/275
CPC分类号： H04J14/0205 , H04B10/2581 , H04B10/275 , H04J14/0212 , H04J14/0213 , H04Q11/0005 , H04Q11/0062 , H04Q2011/0009
摘要： A node in a wavelength division multiplexing (WDM) system is provided, which includes: a colorless optical transmitter, a first arrayed waveguide grating, a first waveband filter configured to divide an input optical signal into M sub-signals of different wavebands and output to a first optical switch, and a first optical coupler/a first optical combiner. A transmit end of the colorless optical transmitter is coupled to an input end of the first waveband filter via the first arrayed waveguide grating. The first optical switch is configured to connect an output end of the first waveband filter to an input end of the first optical coupler/the first optical combiner according to a control signal. An output end of the first optical coupler/the first optical combiner is coupled to an optical transmission path.

6. 发明申请

US20170026132A1 Method for Controlling Modulation Depth of Pilot Signal, Transmitter, and Pilot Locking Apparatus 有权
标题翻译：控制导频信号，发射机和先导锁定装置调制深度的方法
公开(公告)号：US20170026132A1
公开(公告)日：2017-01-26
申请号：US15282697
申请日：2016-09-30
申请人： Huawei Technologies Co., Ltd.
发明人： Juan Wang , Ning Deng , Xiaodong Luo , Zhiyong Feng
IPC分类号： H04B10/50 , H04B10/54 , H04B10/079
CPC分类号： H04B10/5057 , H04B10/0795 , H04B10/541 , H04B2210/075
摘要： A transmitter includes a pilot loading apparatus, an optical modulator, and a pilot locking apparatus. The pilot locking apparatus is configured to determine a pilot operating point that is currently on a response curve and that is of the optical modulator, and a target initial amplitude of an electrical pilot signal. The pilot locking apparatus is further configured to control the pilot loading apparatus to adjust an initial amplitude of the electrical pilot signal to the target initial amplitude.
摘要翻译：发射机包括导频加载装置，光调制器和导频锁定装置。导频锁定装置被配置为确定当前在响应曲线上并且是光调制器的导频工作点和电导频信号的目标初始幅度。导频锁定装置还被配置为控制导频加载装置将电导频信号的初始幅度调整到目标初始振幅。

7. 发明申请

US20220294171A1 Optical Amplifier, Optical Signal Processing Method, and Storage Medium 有权
公开(公告)号：US20220294171A1
公开(公告)日：2022-09-15
申请号：US17827224
申请日：2022-05-27
申请人： Huawei Technologies Co., Ltd.
发明人： Kai Zhang , Bo Wu , Ning Deng
IPC分类号： H01S3/067 , H01S3/10 , H01S3/13
摘要： An optical amplifier includes at least two stages of optical amplifier systems, an optical switch, a dynamic gain equalizer (DGE), and a control circuit. An input end of the optical switch is separately coupled to an output end of a first-stage optical amplifier system and an output end of a second-stage optical amplifier system, and an output end of the optical switch is separately coupled to an input end of the second-stage optical amplifier system and an input end of the DGE. The optical switch is configured to set at least two gain modes of the optical amplifier. The control circuit is configured to adjust an attenuation spectrum of the DGE based on the at least two gain modes set by the optical switch. The DGE is configured to perform, based on an adjusted attenuation spectrum, power attenuation processing on signals of different wavelengths in a received optical signal.

8. 发明授权

US08989594B2 Method and device for adjusting filtering bandwidth of an optical device 有权
标题翻译：用于调整光学设备的滤波带宽的方法和装置
公开(公告)号：US08989594B2
公开(公告)日：2015-03-24
申请号：US13793928
申请日：2013-03-11
申请人： Huawei Technologies Co., Ltd.
发明人： Ning Deng
IPC分类号： H04B10/00 , H04B10/516 , H04B10/50 , H04J14/02
CPC分类号： H04B10/516 , H04B10/506 , H04J14/0221
摘要： A method for adjusting a filtering bandwidth of an optical device includes: acquiring a modulation bandwidth of a first optical signal and s modulation bandwidth of a second optical signal, where the first optical signal is an optical signal input into a first wavelength channel of an optical device, the second optical signal is an optical signal input into a second wavelength channel of the optical device, and the second wavelength channel is adjacent to the first wavelength channel; comparing the modulation bandwidth of the first optical signal with the modulation bandwidth of the second optical signal; and according to a result of comparing the modulation bandwidth of the first optical signal with the modulation bandwidth of the second optical signal, adjusting a filtering bandwidth of at least one wavelength channel of the first wavelength channel and the second wavelength channel.
摘要翻译：一种用于调整光学装置的滤波带宽的方法包括：获取第一光信号的调制带宽和第二光信号的调制带宽，其中第一光信号是输入光学第一波长信道的光信号第二光信号是输入光器件的第二波长信道的光信号，第二波长信道与第一波长信道相邻; 将第一光信号的调制带宽与第二光信号的调制带宽进行比较; 并且根据将第一光信号的调制带宽与第二光信号的调制带宽进行比较的结果，调整第一波长信道和第二波长信道的至少一个波长信道的滤波带宽。

9. 发明申请

US20210135763A1 Frequency Offset Processing Method, Apparatus, and Device and Storage Medium 有权
公开(公告)号：US20210135763A1
公开(公告)日：2021-05-06
申请号：US17150661
申请日：2021-01-15
申请人： Huawei Technologies Co., Ltd.
发明人： Wei Jia , Chao Pan , Han Zhao , Ning Deng
IPC分类号： H04B10/572 , H04B10/079 , H04B10/548 , H04B10/50 , H04B10/077
摘要： A frequency offset processing method, apparatus, and a storage medium, where the method includes: determining a frequency offset of a preset channel in a wavelength selective switch (WSS); determining a correspondence between a frequency offset and a wavelength or a correspondence between a frequency offset and a pixel position based on the frequency offset of the preset channel; and determining a frequency offset of a traffic channel according to the determined correspondence.

10. 发明授权

US10085078B2 Data processing method, related device, and system for optical transport network 有权
公开(公告)号：US10085078B2
公开(公告)日：2018-09-25
申请号：US14541950
申请日：2014-11-14
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： Ning Deng , Maarten P. J. Vissers , Xiaozhong Shi
IPC分类号： H04Q11/00 , H04J3/16
CPC分类号： H04Q11/0071 , H04J3/1658 , H04J2203/0085 , H04Q11/0066 , H04Q2011/0086
摘要： Embodiments of the present invention provide a data processing method, related device, and system for an optical transport network. The data processing method for the optical transport network includes: encapsulating service data into an optical payload unit; mapping the optical payload unit to an optical channel data unit; mapping the optical channel data unit to a payload area of an optical burst transport unit; performing electrical-optical conversion on the optical burst transport unit to form an optical burst transport unit; carrying the optical burst transport unit onto an optical timeslot of an optical burst channel; and transmitting the optical burst channel to a line. Technical solutions provided by the present invention can effectively simplify a data processing process and reduce a data processing delay.

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