公开(公告)号：US20160329966A1

公开(公告)日：2016-11-10

申请号：US15091611

申请日：2016-04-06

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt ,  Klaus Grobe

IPC: H04B10/272 ,  H04B10/25 ,  H04J14/02

CPC classification number: H04B10/272 ,  H04B10/2503 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J2014/0253

Abstract: The invention relates to an optical WDM transmission network including at least one optical line terminal, a remote node and a plurality of optical network units. The at least one optical line terminal is connected to the optical remote node via an optical WDM path. Each optical network unit is connected to the optical remote node via an optical distribution path.

Abstract translation: 本发明涉及一种包括至少一个光线路终端，远程节点和多个光网络单元的光WDM传输网络。 所述至少一个光线路终端经由光WDM路径连接到所述光学远程节点。 每个光网络单元经由光分配路径连接到光学远程节点。

公开(公告)号：US20160134364A1

公开(公告)日：2016-05-12

申请号：US14928269

申请日：2015-10-30

Applicant: ADVA Optical Networking SE

Inventor： Klaus Grobe

IPC: H04B10/077

CPC classification number: H04B10/0773 ,  H04B10/071 ,  H04B10/0775 ,  H04B2210/078 ,  H04L7/0075

Abstract: An apparatus and method for providing a differential latency, DL, between an upstream, US, transmission and a downstream, DS, transmission via an optical transmission link (OTL), said apparatus comprising a measurement unit (2) configured to measure the round trip delays, RTD, of at least two measurement signals having different measurement wavelengths; and a processing unit (3) configured to derive an upstream, US, delay of at least one optical signal at an upstream wavelength from the at least two measured round trip delays, RTD, and to derive a downstream, DS, delay of at least one optical signal at a downstream wavelength from the at least two measured round trip delays, RTD, wherein the differential latency, DL, is calculated on the basis of the derived delays, RTD.

Abstract translation: 一种用于经由光传输链路（OTL）在上游，US，传输和下游DS传输之间提供差分延迟DL的装置和方法，所述装置包括测量单元（2），其被配置为测量往返 具有不同测量波长的至少两个测量信号的延迟RTD; 以及处理单元（3），被配置为从所述至少两个测量的往返行程延迟RTD导出在上行波长处的至少一个光信号的上游美国延迟，并且导出至少一个下行DS延迟 在来自所述至少两个测量的往返行程延迟RTD的下游波长处的一个光信号，其中基于导出的延迟RTD来计算差分等待时间DL。

公开(公告)号：US20140226987A1

公开(公告)日：2014-08-14

申请号：US14180295

申请日：2014-02-13

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt ,  Klaus Grobe ,  Jörg-Peter Elbers

IPC: H04J14/02

CPC classification number: H04J14/0216 ,  H04J14/0213 ,  H04J14/0279 ,  H04J14/0283 ,  H04J14/0294 ,  H04J14/0295 ,  H04J14/0297

Abstract: The invention relates to a protected optical single-fiber WDM system. A first (3) and a second (5) head-end terminal and at least one optical add/drop filter device (11) are connected to form a chain-like transmission path, each of the first and second head-end terminals (3, 5) being connected, at a WDM port (3a, 5a), through a single optical fiber (13) to a western (11a) or an eastern WDM port (11d) of an adjacent one of the optical add/drop filter devices (11), respectively, and each of the optical add/drop filter devices (11) being connected, at an eastern or western WDM port (11d, 11a), to a western or eastern WDM port (11a, 11d) of an adjacent one of the optical add/drop filter devices (11), respectively. At least one tail-end terminal (9) is connected to each optical add/drop filter device (11), wherein a first (9a) and a second (9b) channel port of the respective add/drop tail-end terminal (9) is connected to a dedicated first (11b) and second (11c) channel port of the optical add/drop filter device (11) through a respective optical fiber (15,17). The head-end terminals (3, 5), the optical add/drop filter devices (11) and the tail-end terminals (9) are adapted to selectively or simultaneously establish a bidirectional communication between each tail-end terminal (9) and the first and second head-end terminal (3, 5), wherein each tail-end terminal (9) bidirectionally communicates through its first channel port (9a) with the first head-end terminal (3) and bidirectionally communicates through its second channel port (9b) with the second head-end terminal (5), one of these communication paths serving as a working communication path and the other of these communication paths serving as a protection path, wherein for the communication between each of the tail-end terminals (9) and the first and second head-end terminal (3, 5), respectively, dedicated optical channel signals lying in a first wavelength band and a second wavelength band are used for each transmission direction, the first and second wavelength band revealing no overlap and the optical channel signals in each wavelength band forming, in each transmission direction in the chain-like transmission path, respective optical WDM signals.