公开(公告)号：US20250015893A1

公开(公告)日：2025-01-09

申请号：US18891290

申请日：2024-09-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang Liu ,  Hongqi Wang ,  Guangcan Mi

IPC: H04B10/2525 ,  G02B6/02 ,  H04B10/2575

Abstract: Example systems and nodes are provided. An example system includes a first node, a second node, and an optical fiber that connects the first node and the second node. A zero-dispersion wavelength (ZDW) of the optical fiber belongs to a ZDW region. The optical fiber is configured for transmission of N first-direction wavelength channels and N second-direction wavelength channels. N is an integer greater than 2. At least two first-direction wavelength channels and at least one second-direction wavelength channel, or at least two second-direction wavelength channels and at least one first-direction wavelength channel, are located in the ZDW region. The first-direction wavelength channel and the second-direction wavelength channel that are in the ZDW region are mixedly distributed. The first-direction wavelength channel is sent by the first node to the second node, and the second-direction wavelength channel is sent by the second node to the first node.

公开(公告)号：US09191101B2

公开(公告)日：2015-11-17

申请号：US14136911

申请日：2013-12-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hongqi Wang ,  Shixing Li ,  Jun Luo ,  Dejiang Zhang

IPC: H04B10/032 ,  H04J14/02

CPC classification number: H04B10/032 ,  H04J14/0291 ,  H04Q2213/1301

Abstract: The present invention discloses an optical line transmission protection system and method. In which, the optical line transmission protection system includes: at least one stage of optical line protection segment having a transmitting end provided with a Tunable Optical Divide Module (TOD), and a receiving end provided with an OSW; the transmitting end of a local Optical Line Protector (OLP) is connected to the receiving end of an opposite OLP to form main and standby optical lines; and the TOD is configured to set splitting ratios of the main and standby optical lines according to a difference between the optical fiber states of the current working channel and non-working channel, and tune optical power distributions at respective transmitting ends of the main and standby optical lines, according to the splitting ratios of the main and standby optical lines.

Abstract translation: 本发明公开了一种光线路传输保护系统及方法。 其中，光线路传输保护系统包括：至少一级的光线路保护段，其具有设置有可调谐分频模块（TOD）的发送端，以及具有OSW的接收端; 本地光线路保护器（OLP）的发送端连接到相对OLP的接收端，形成主备线路; 并且TOD被配置为根据当前工作信道和非工作信道的光纤状态之间的差异来设置主和备用光线路的分离比，并调整主和备用光纤的各个发送端的光功率分布 光线，根据主光路和备用光线的分光比。