Method and devices for automatic tuning in WDM-PON
US9660754B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2009 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | Jul 18, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0282
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method in a wavelength division multiplexing passive optical network is provided. A multiplexed optical downstream signal is transmitted from an optical line terminal to a passive distribution node. The signal is demultiplexed into a plurality of optical sub-signals. A sub-signal is transferred to an optical network termination. The received at least one sub-signal is identified. An optical wavelength of an upstream optical signal is set as a function of a predefined relationship between an optical wavelength of the received at least one sub-signal and the optical wavelength of the upstream signal. The upstream signal is transmitted to the optical line terminal via the passive distribution node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.