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High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
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Integrated electro-optic Bragg processors for digital real-time signal processing.

R Arrathoon, E R Schroeder, L D Hutcheson

    Optics Letters
    |September 3, 2009
    PubMed
    Summary
    This summary is machine-generated.

    A novel digital integrated optical convolver is proposed for real-time signal processing. This system uses electro-optic Bragg gratings to achieve digital convolution and correlation for continuous and sampled-time inputs.

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    Area of Science:

    • Optoelectronics
    • Signal Processing
    • Integrated Optics

    Background:

    • Real-time signal processing is crucial for many applications.
    • Existing methods for optical convolution and correlation have limitations.
    • Digital control over optical systems offers new processing capabilities.

    Purpose of the Study:

    • To propose and analyze a digital integrated optical convolver.
    • To enable real-time signal processing using optical methods.
    • To extend convolution and correlation theories to digital optical systems.

    Main Methods:

    • Utilizing a series of time-delayed signals applied to electro-optic Bragg gratings.
    • Adjusting signal delays to emulate a variable-wavelength traveling index wave.
    • Modifying analog Bragg diffraction theory to incorporate discrete spatial sampling.

    Main Results:

    • Demonstrated the feasibility of a digital integrated optical convolver.
    • Developed a modified theory for digital convolution and correlation.
    • Extended the theoretical framework to handle both continuous-time and sampled-time inputs.

    Conclusions:

    • The proposed digital integrated optical convolver is a viable approach for real-time signal processing.
    • The developed theory provides a foundation for designing and analyzing such systems.
    • This technology has potential applications in various signal processing domains.