Optical module for multi-channel wavelength multiplexing
AssigneeAlcatel
InventorsOlivier Leclerc, Patrick Brindel
Life of this patent
Estimating the term…
Abstract
An optical module advantageously uses optical conversion fibers not only for a single channel but for sets of channels that are, in a specific way, selected from a multi-channel wave division multiplex (WDM) grid. The sets of channels are defined such that four wave mixing is negligible or has a negligible effect. The optical module has a demultiplexer, a multiplexer, and parallel optical conversion fiber portions that are arranged between the demultiplexer and the multiplexer. Each of the parallel optical conversion fiber portions has a specific dispersion map and transmits a different set of channels of the multi-channel WDM grid. These channels are regularly spaced from each other.
Claims7
An optical module for multi-channel wavelength division multiplexing, comprising:
- a demultiplexer;
- a multiplexer;
- and
- a plurality of parallel optical conversion fiber portions arranged between the demultiplexer and the multiplexer;
- wherein each of the plurality of parallel optical conversion fiber portions has a specific dispersion map;
- wherein each of the plurality of parallel optical conversion fiber portions is configured to transmit a set of channels of a multi-channel wavelength division multiplex grid;
- wherein the respective sets of channels transmitted by the plurality of parallel optical conversion fiber portions differ from each other;
- and
- wherein the channels of each one of the respective sets of channels are regularly spaced from each other.
Dependencies are inferred from the claim text.