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US 9,020,350 B2Granted
Optical spectrum recovery
AssigneeTechsys Insights
InventorsEdward T Sullivan, Hal Kauffeldt
Life of this patent
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AssigneeTechsys Insights
InventorsEdward T Sullivan, Hal Kauffeldt
Estimating the term…
The invention is directed to systems and methods for re-arranging optical spectrum utilization so that unallocated portions of the spectrum may be made contiguous. Rearrangement of optical spectrum is accomplished by moving a channel from its initial spectral location to a targeted spectral location by reserving additional spectrum for that channel that at least includes the targeted spectral location, shifting the channel to the targeted location and then collapsing the reserved spectrum around the targeted location to cover the minimal required spectrum for the channel allocation of the channel. In some cases, a secondary channel can be used as an alternate source to carry user traffic while the first channel is shifted to the targeted location.
A method for changing at least one of the optical frequency range and/or states of polarization of an optical allocation of an optical channel from an initial allocation to a target allocation without tearing down said optical channel and without changing the spectral width of an optical signal within said optical channel, comprising:
A system for changing at least one of the optical frequency range and/or states of polarization of an optical allocation of an optical channel from an initial allocation to a target allocation without tearing down said optical channel and without changing the spectral width of an optical signal within said optical channel, comprising:
Dependencies are inferred from the claim text.