Optical transmission system using raman optical amplification
US8301040B2 · kind B2 · utility
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Key dates
| Filing date | Jun 11, 2009 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Jan 27, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/272
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical transmission system using Raman optical amplification, which is configured in a WDM-PON topology where a signal light between an optical line terminal and each of optical network units is multi/demultiplexed at a WDM. The optical line terminal supplies continuous lights having wavelengths to the optical network units through an optical fiber from the optical line terminal. The continuous lights are used for an uplink signal. In addition, the optical line terminal outputs a pumping light having a wavelength which is used to excite lights of the continuous lights, to the optical fiber from the optical line terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.