Back to results
US 2006/0067704 A1Published application
Method and apparatus for dispersion management in optical communication systems
OwnerDaniel Fishman, Xiang Liu +2inventors
InventorsDaniel Fishman, Xiang Liu, Xing Wei, Jinpin Ying
Life of this patent
Estimating the term…
Abstract
A dispersion compensator apparatus including interleavers for de-interleaving/interleaving even and odd channels of a WDM signal, and dispersion compensation modules (DCMs) coupled between the interleavers. One or more of the DCMs is a periodic-group-delay (PGD) DCMs for providing dispersion compensation.
Claims33
A dispersion compensator apparatus comprising:
- a first interleaver for de-interleaving even and odd channels of a WDM signal onto a first output port and a second output port, respectively;
- a first dispersion compensation module (DCM) coupled to the first output port, and a second DCM coupled to the second output port, wherein at least one of the first DCM and the second DCM is a periodic-group-delay (PGD) DCM for providing dispersion compensation for one or more of the even or odd channels of the WDM signal;
- and
- a second interleaver coupled to the first and second DCMs for interleaving even and odd channels of the WDM signal.
1 more element
An optical transmission system comprising:
- a plurality of dispersion compensation apparatus for distributed dispersion compensation at a plurality of dispersion compensation module (DCM) nodes in the transmission system, each dispersion compensation apparatus including:
- a first interleaver for de-interleaving even and odd channels of a WDM signal onto a first output port and a second output port, respectively;
- a first DCM coupled to the first output port, and a second DCM coupled to the second output port, wherein at least one of the first DCM and the second DCM is a periodic-group-delay (PGD) DCM for providing dispersion compensation for one or more of the even or odd channels of the WDM signal;
- and
- a second interleaver coupled to the first and second DCMs for interleaving even and odd channels of the WDM signal.
2 more elements
A method for dispersion compensation comprising:
- de-interleaving even and odd channels of a DWDM signal;
- providing dispersion compensation for one or more of the even or odd channels of the DWDM signal using a periodic-group-delay dispersion compensator module;
- and
- interleaving even and odd channels of the DWDM signal.
1 more element
Dependencies are inferred from the claim text.