DWDM and CWDM hybrid PON system and method
US8417117B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2007 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Feb 3, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0252
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A passive optical network (PON) comprises an Optical Line Termination (OLT), an Optical Distribution Network (ODN), and a plurality of Optical Network Terminations (ONTs), wherein the OLT includes an OLT Dense Wavelength Division Multiplexing (DWDM) multiplexer, an OLT CWDM demultiplexer, and a Wavelength Division Multiplexing (WDM) filter, wherein the OLT DWDM multiplexer and the OLT CWDM demultiplexer are coupled to the WDM filter, wherein the ODN includes a WDM filter, a DWDM demultiplexer, and a plurality of fanout splitters, wherein the DWDM demultiplexer is coupled to the WDM filter, wherein the WDM filters are coupled to one another and wherein a portion of the plurality of ONTs that are associated with a wavelength are coupled to one of fanout splitters that is associated with the wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.