Technique for Spatially Resolving Temperature and Strain Measurements via Brillouin Scattering
AssigneeNkt Photonics GmbH
InventorsWieland HILL, Alexander RATH, Benjamin MARX, Thorben JOSTMEIER
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Abstract
An apparatus for digitizing an optical signal comprises: an optical detector to detect an optical signal and to generate an electric signal corresponding to the optical signal; an envelope curve detector to determine the amplitude of the electric signal or a modified electric signal resulting from the electric signal, and to supply an amplitude signal corresponding to the amplitude; an analog to digital converter to digitize the amplitude signal and to supply a corresponding digitized amplitude signal; and a variable voltage source to calibrate the envelope curve detector.
Claims15
An apparatus for digitizing an optical signal, comprising:
- an optical detector to detect an optical signal and to generate an electric signal corresponding to the optical signal;
- an envelope curve detector to determine the amplitude of the electric signal or a modified electric signal resulting from the electric signal, and to supply an amplitude signal corresponding to the amplitude;
- an analog to digital converter to digitize the amplitude signal and to supply a corresponding digitized amplitude signal;
- and
- a variable voltage source to calibrate the envelope curve detector.
A method for digitizing an optical signal, comprising:
- generating an electric signal corresponding to a detected electric signal;
- determining, via an envelope curve detector, an amplitude of the electric signal or a modified electric signal resulting from the electric signal;
- generating an amplitude signal corresponding to the amplitude;
- digitizing the amplitude signal to produce a digitized amplitude signal;
- and
- calibrating the envelope curve detector with a variable voltage source.
Dependencies are inferred from the claim text.