发明名称 Optical WDM Transmission Network
摘要 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.
申请公布号 US2016329966(A1) 申请公布日期 2016.11.10
申请号 US201615091611 申请日期 2016.04.06
申请人 ADVA Optical Networking SE 发明人 Eiselt Michael;Grobe Klaus
分类号 H04B10/272;H04B10/25;H04J14/02 主分类号 H04B10/272
代理机构 代理人
主权项 1. An optical WDM transmission network comprising at least one optical line terminal, a remote node and a plurality of optical network units, wherein (a) the at least one optical line terminal is connected to the optical remote node via an optical WDM path, (b) each optical network unit is connected to the optical remote node via an optical distribution path, (c) the optical remote node has connection ports for connecting the at least one optical line terminal and the plurality of optical network units to the optical remote node, the optical remote node having wavelength-depending routing properties being configured in such a way that bidirectional hub links via the optical remote node between the at least one optical line terminal and each of the optical network units can be established and being further configured in such a way that direct bidirectional star links via the optical remote node between one or more selected optical network unit and at least one of the other optical network unit can be established, the wavelength-dependent routing properties being essentially identical in a first optical band, a second optical band, and a third optical band, the first, second and third optical band having no overlap, (d) wherein, for establishing the hub links, the at least one optical line terminal creates optical downstream channel signals at first wavelengths lying in the first optical band and each of selected one or more optical network units creates an optical upstream channel signal at a dedicated second wavelength lying in the second optical band and wherein, for establishing the direct star links, each of selected one or more optical network units creates an optical star link channel signal at a dedicated third wavelength lying in the third optical band, wherein (e) each of the selected optical network units further comprises a first optical band filter device comprising a common port and a first band port and a second band port, a first optical receiver connected to the first band port and a second optical receiver coupled to the second band port, the first optical receiver being adapted to receive an optical downstream channel signal lying in the first optical band for establishing a hub link and the second optical receiver adapted to receive an optical channel signal lying in the third optical band for establishing a direct star link, (f) wherein the optical band filter device is configured to route an optical channel signal supplied to the common port and lying in the first optical band to the first band port and to route an optical channel signal supplied to the common port and lying in the third optical band to the second band port.
地址 Meiningen DE