Method and system for extracting information from an optical signal
AssigneeAriel Scientific Innovations Ltd.
InventorShmuel Sternklar
Life of this patent
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Abstract
A system for providing information based on a spectral content of an optical signal, comprises: an optical modulator for applying a time-dependent modulation to the optical signal according to at least one sub-optical modulation frequency, to provide a modulated optical signal. The system also comprises an optoelectronic device configured for receiving the modulated optical signal and responsively generate an electrical sensing signal, and a signal processing system configured for processing the electrical sensing signal and to generate output correlative to at least one wavelength of the optical signal based on the modulation.
Claims23
A system for providing information based on a spectral content of an optical signal, comprising:
- an optical modulator for applying a time-dependent modulation to the optical signal according to at least one sub-optical modulation frequency, to provide a modulated optical signal;
- an optoelectronic device configured for receiving said modulated optical signal and responsively producing, at a wavelength dependent photosensitive region within said optoelectronic device, pairs of charge carriers effecting a net electrical current within said optoelectronic device thereby generating an electrical sensing signal, wherein transit times of said charge carriers within said optoelectronic device are also wavelength dependent and wherein electrical signals generated by charge carriers in response to different spectral components of the optical signal exhibit different modulation parameters;
- and
- a signal processing system configured for processing said electrical sensing signal and to generate output correlative to at least one wavelength of the optical signal based on said modulation parameters.
A method of providing information based on a spectral content of an optical signal, comprising:
- applying a time-dependent modulation to the optical signal according to at least one sub-optical modulation frequency, to provide a modulated optical signal;
- receiving said modulated optical signal by an optoelectronic device configured for receiving said modulated optical signal and responsively producing, at a wavelength dependent photosensitive region within said optoelectronic device, pairs of charge carriers effecting a net electrical current within said optoelectronic device, thereby generating an electrical sensing signal, wherein transit times of said charge carriers within said optoelectronic device are also wavelength dependent and wherein electrical signals generated by charge carriers in response to different spectral components of the optical signal exhibit different modulation parameters;
- and
- processing said electrical sensing signal to generate output correlative to at least one wavelength of the optical signal based on said modulation parameters.
Dependencies are inferred from the claim text.