Systems and methods for optical filter fault localization
AssigneeHuawei Technologies Co., Ltd.
InventorsZhiping Jiang, Junho Chang, Choloong Hahn
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Abstract
The disclosed systems and methods for optical filter fault localization. The optical filter fault localization is based on: i) determining an accumulated noise density at frequencies where ASE noise is filtered out by a faulty optical filter in an optical signal; ii) comparing the accumulated noise density with predicted accumulated noise densities, the predicted accumulated noise densities representing noises predicted from a plurality of optical filters to a receiver; and iii) determining, based on the comparison of the accumulated noise density and the predicted accumulated noise densities, a location of the faulty optical filter.
Claims18
A method for optical filter fault localization comprising:
- determining an accumulated noise density at frequencies where amplified spontaneous emission (ASE) noise is filtered out by a faulty optical filter in an optical signal;
- comparing the accumulated noise density with predicted accumulated noise densities, the predicted accumulated noise densities representing noises predicted from a plurality of optical filters to a receiver;
- and
- determining, based on the comparison of the accumulated noise density and the predicted accumulated noise densities, a location of the faulty optical filter.
A system for optical filter fault localization comprising:
- a non-transitory memory element having instructions thereon;
- a processor coupled to the non-transitory memory element and configured to execute the instructions to cause the processor to:
- determine an accumulated noise density at frequencies where amplified spontaneous emission (ASE) noise is filtered out by a faulty optical filter in an optical signal;
- compare the accumulated noise density with predicted accumulated noise densities, the predicted accumulated noise densities representing noises predicted from a plurality of optical filters to a receiver;
- and
- determine, based on the comparison of the accumulated noise density and the predicted accumulated noise densities, a location of the faulty optical filter.
Dependencies are inferred from the claim text.