Method and system for disturbance tracking and localization
AssigneeCiena Corporation
InventorsShahab Oveis Gharan, Kim Byron Roberts
Life of this patent
Estimating the term…
Abstract
Aspects of the subject disclosure may include, for example, obtaining phase estimates associated with groups of known symbols in an optical signal that is received over an optical fiber, wherein the groups of known symbols are transmitted at known locations in the optical signal, and performing calculations using the phase estimates to facilitate detection or localization of a disturbance to the optical fiber, wherein the calculations decouple an effect of the disturbance on the phase estimates from effects of one or more of transmitter-related phase noise and receiver-related phase noise on the phase estimates. Other embodiments are disclosed.
Claims20
A coherent optical receiver, comprising:
- a disturbance tracking system that is configured to perform operations, including
- obtaining phase estimates associated with groups of known symbols in an optical signal that is received over an optical fiber, and
- performing calculations using the phase estimates to facilitate detection or localization of a disturbance to the optical fiber, wherein the calculations decouple an effect of the disturbance on the phase estimates from effects of one or more of transmitter-related phase noise and receiver-related phase noise on the phase estimates.
A non-transitory machine-readable medium, comprising executable instructions that, when executed by a processing system of an optical receiver including a processor, facilitate performance of operations, the operations comprising:
- obtaining phase estimates associated with groups of known symbols in an optical signal that is received over an optical fiber;
- and
- performing calculations using the phase estimates to facilitate detection or localization of a disturbance to the optical fiber, wherein the calculations decouple an effect of the disturbance on the phase estimates from effects of one or more of transmitter-related phase noise and receiver-related phase noise on the phase estimates.
A method, comprising:
- obtaining, by a processing system including a processor, phase estimates associated with groups of known symbols in an optical signal that is received over an optical fiber;
- and
- performing, by the processing system, calculations using the phase estimates to facilitate detection or localization of a disturbance to the optical fiber, wherein the calculations decouple an effect of the disturbance on the phase estimates from effects of one or more of transmitter-related phase noise and receiver-related phase noise on the phase estimates.
Dependencies are inferred from the claim text.