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US 12,492,984 B2Granted
Method and apparatus for coherent spread spectrum optical spectroscopy
AssigneeCiena Corporation
InventorsBrandon Taylor Buscaino, Mohammad Ebrahim Mousa Pasandi, Kim Byron Roberts
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Abstract
Aspects of the subject disclosure may include, for example, generating one or more first optical signals, launching the first optical signal into a medium, receiving from the medium one or more second optical signals, mixing the one or more second optical signals with one or more third optical signals to generate one or more mixed signals, obtaining one or more electrical signals from the mixed signal, and generating one or more point spread functions from the one or more electrical signals. Other embodiments are disclosed.
Claims20
A system comprising components that perform operations, the operations comprising:
- receiving, by a receiver component and from a medium, one or more second optical signals resulting from a propagation of one or more first optical signals through the medium, wherein one or more optical sources output first light that traverses a first path in which the first light is modulated by a data signal to generate the one or more first optical signals, wherein the one or more optical sources further output second light that traverses a direct path to the receiver component without being modulated by a data signal and without being altered, wherein the one or more first optical signals have a broad substantially-coherent optical spectrum, wherein the one or more first optical signals are launched into the medium, and wherein the medium has a characteristic of being bulk and diffusing which causes the one or more second optical signals to have characteristics of a temporal point spread function (TPSF);
- mixing the one or more second optical signals with second light to generate one or more mixed signals;
- obtaining one or more electrical signals from the one or more mixed signals;
- and
- generating one or more point spread functions from the one or more electrical signals to extract characteristics of the TPSF.
2 more elements
An apparatus, comprising:
- a processing system including a processor;
- and
- a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, comprising
- receiving, by a receiver in the processing system and from a medium, one or more second optical signals resulting from a propagation of one or more first optical signals through the medium, wherein one or more optical sources output first light that traverses a first path in which the first light is modulated by a data signal to generate the one or more first optical signals, wherein the one or more optical sources further output second light that traverses a direct path to the receiver without being modulated by a data signal and without being altered, wherein the one or more first optical signals have a broad substantially-coherent optical spectrum, wherein the one or more first optical signals are launched into the medium, and wherein the medium has a characteristic of being bulk and diffusing which causes the one or more second optical signals to have characteristics of a temporal point spread function (TPSF);
- mixing the one or more second optical signals with the second light to generate one or more mixed signals;
- obtaining one or more electrical signals from the one or more mixed signals;
- and
- generating one or more point spread functions from the one or more electrical signals to extract characteristics of the TPSF.
5 more elements
A method, comprising:
- receiving, by a receiver and from a target medium, one or more second optical signals resulting from a propagation of one or more first optical signals through the target medium, wherein one or more optical sources output first light that traverses a first path in which the first light is modulated by a data signal to generate the one or more first optical signals, wherein the one or more optical sources further output second light that traverses a direct path to the receiver without being modulated by a data signal and without being altered, wherein the one or more first optical signals have a broad substantially-coherent optical spectrum, wherein the one or more first optical signals are launched into the target medium, and wherein the target medium has a characteristic of being bulk and diffusing which causes the one or more second optical signals to have characteristics of a temporal point spread function (TPSF);
- mixing the one or more second optical signals with second light to generate one or more mixed signals;
- obtaining one or more electrical signals from the one or more mixed signals;
- and
- generating, based on matched filtering, one or more point spread functions from the one or more electrical signals to extract characteristics of the TPSF.
2 more elements
Dependencies are inferred from the claim text.