公开(公告)号：US20160134079A1

公开(公告)日：2016-05-12

申请号：US14996023

申请日：2016-01-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhenxing LIAO ,  Ning CHENG ,  Min ZHOU ,  Jing HUANG ,  Yunsheng WEN

IPC: H01S3/131 ,  H04B10/079 ,  H04B10/572 ,  H01S3/00 ,  H04B10/564

CPC classification number: H01S3/1317 ,  H01S3/0078 ,  H01S5/0078 ,  H01S5/02438 ,  H01S5/02446 ,  H01S5/0612 ,  H01S5/0617 ,  H01S5/06213 ,  H01S5/0687 ,  H04B10/0793 ,  H04B10/07955 ,  H04B10/564 ,  H04B10/572

Abstract: A wavelength alignment method includes: emitting a first optical signal by using a laser; filtering the first optical signal by using a filter, and then transmitting a second optical signal; monitoring an extinction ratio of the second optical signal and an optical power of the second optical signal; and adjusting a working temperature of the laser and/or a working temperature of the filter to a target working temperature when the extinction ratio of the second optical signal exceeds an upper limit of a first extinction ratio threshold range and the optical power of the second optical signal exceeds a lower limit of a first optical power threshold range or when the extinction ratio of the second optical signal exceeds a lower limit of a first extinction ratio threshold range and the optical power of the second optical signal exceeds an upper limit of a first optical power threshold range.

Abstract translation: 波长对准方法包括：通过使用激光发射第一光信号; 通过使用滤波器对第一光信号进行滤波，然后发送第二光信号; 监测第二光信号的消光比和第二光信号的光功率; 以及当所述第二光信号的消光比超过第一消光比阈值范围的上限和所述第二光信号的光功率时，将所述激光器的工作温度和/或所述滤波器的工作温度调整到目标工作温度 信号超过第一光功率阈值范围的下限，或者当第二光信号的消光比超过第一消光比阈值范围的下限，并且第二光信号的光功率超过第一光功率阈值范围的上限时 功率阈值范围。

公开(公告)号：US20190319710A1

公开(公告)日：2019-10-17

申请号：US16453743

申请日：2019-06-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lingjie WANG ,  Enyu ZHOU ,  Sulin YANG ,  Zhenxing LIAO

IPC: H04B10/50 ,  G02B27/28

Abstract: A transmitter optical subassembly is disclosed including a substrate and a direct modulated laser disposed on the substrate. A single-stage isolator, a polarization direction rotator, and an optical branching filter are disposed side by side on the substrate in a light propagation direction. The polarization direction rotator can adjust linearly polarized light to P-polarized light, the optical branching filter includes an optical splitter subassembly and a filter subassembly, and an optical splitter film in the optical splitter subassembly is an optical splitter film with P polarization. The polarization direction rotator adjusts the incident linearly polarized light to the P-polarized light, and the optical splitter film in the optical branching filter is the optical splitter film with P polarization; all P-polarized light with single polarization can pass through the optical branching filter, without causing any polarization loss or two peaks.

公开(公告)号：US20140328592A1

公开(公告)日：2014-11-06

申请号：US14331597

申请日：2014-07-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei ZHOU ,  Zhenxing LIAO ,  Zhenping WANG ,  Ning CHENG

IPC: H04B10/61 ,  H04Q11/00

CPC classification number: H04B10/6164 ,  H04B10/61 ,  H04B10/615 ,  H04Q11/0067

Abstract: A signal processing method, an optical receiver and optical network system is provided. The method includes: receiving a first optical signal sent by an optical network unit, generating a second optical signal and modulating a phase of the second optical signal, obtaining at least one path of electrical signals after the first optical signal and the second optical signal separately undergo polarization splitting, frequency mixing, and optical-electrical conversion, outputting a third electrical signal after performing operation processing on the at least one path of electrical signals, and restoring a data signal according to the third electrical signal and performing sending. The embodiments example benefits are greatly reducing complexity of system implementation and maximally reducing a system upgrade cost and an optical power loss.

Abstract translation: 提供信号处理方法，光接收机和光网络系统。 该方法包括：接收由光网络单元发送的第一光信号，产生第二光信号并调制第二光信号的相位，分别在第一光信号和第二光信号之后获得至少一个电信号路径 进行偏振分离，混频和光电转换，在对电信号的至少一个路径执行操作处理之后输出第三电信号，并根据第三电信号恢复数据信号并执行发送。 实施例的示例优点是极大地降低了系统实现的复杂性，并最大限度地降低了系统升级成本和光功率损耗。