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    A novel segmented planar imager uses a single photonic integrated circuit (PIC) and lens array for advanced optical interferometry. This innovation significantly reduces telescope size and development time.

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    Area of Science:

    • Optical Engineering
    • Astronomy Instrumentation
    • Photonics

    Background:

    • Traditional optical interferometry often involves large, power-hungry systems.
    • Photonic integrated circuits (PICs) offer miniaturization potential for optical systems.
    • Existing PIC-based imaging often requires complex, multi-directional arrangements.

    Purpose of the Study:

    • To introduce a single-PIC imaging system for optical interferometry.
    • To demonstrate a method for 2D frequency domain sampling and imaging using a single PIC.
    • To explore modularization for creating larger equivalent apertures with PICs.

    Main Methods:

    • Integration of a single PIC with a two-dimensional (2D) lens array.
    • Utilizing the single PIC for comprehensive 2D frequency domain sampling.
    • Employing modular design principles for scalable aperture construction.

    Main Results:

    • Achieved single-PIC imaging, eliminating the need for multiple PICs.
    • Demonstrated the formation of larger equivalent apertures through modularization.
    • Significantly reduced size, weight, and power consumption compared to traditional methods.

    Conclusions:

    • The single-PIC imaging system offers a compact and efficient alternative for optical interferometry.
    • Mass-producible PICs and modular design accelerate the development of large-aperture telescopes.
    • This approach advances the field of compact, high-performance imaging systems.