Dispersion compensation method in optical communication system having optical add drop multiplexing capability
US7542677B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2007 |
| Grant date | Jun 2, 2009 |
| Priority date | — |
| Expiry date | Aug 21, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/256
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Dispersion compensation values are set so as to be transmittable to any path groups in a WDM optical communication system having OADM nodes, which includes transmitting-end and receiving-end terminal nodes; a WDM optical communication transmission line including a plurality of spans each having an optical fiber, the plurality of spans joining the transmitting-end and receiving-end terminal nodes; and a plurality of add drop multiplexing (OADM) nodes disposed on the optical communication transmission line; wherein when taking as the reference a residual dispersion target value of between the transmitting-end terminal and receiving-end terminal nodes, a residual dispersion target value for a node segment between one of the terminal nodes and one of the add drop multiplexing (OADM) nodes and a residual dispersion target value for a node-to-node segment between two of the add drop multiplexing (OADM) nodes are set so as to be proportional to ratios of the span counts in the node segment and in the node-to-node segment, respectively, to the total span count between the transmitting-end and receiving-end terminal nodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.