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Fiber reference misalignment induced error in cylindrical wave interferometry.

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    Summary
    This summary is machine-generated.

    Fiber optic alignment errors in cylindrical wave testing were experimentally studied. Results show 1D filtering does not impact misalignment sensitivity, which is half of previously reported values, aiding in accurate fiber realignment.

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    Area of Science:

    • Optical metrology
    • Wavefront sensing
    • Fiber optics

    Background:

    • Accurate alignment of fiber optic references is crucial for precise optical measurements.
    • Misalignment can introduce significant aberrations and errors in wavefront sensing.
    • Previous studies on cylindrical test misalignment sensitivities lack empirical validation for fiber references.

    Purpose of the Study:

    • To experimentally investigate fiber reference misalignment induced errors in a cylindrical wave test.
    • To determine the actual misalignment sensitivities of a fiber reference.
    • To assess the impact of the fiber reference's 1-dimensional filtering properties on misalignment sensitivity.

    Main Methods:

    • An experimental setup was designed to perform a cylindrical wave test with a fiber reference.
    • Fiber reference misalignment was systematically introduced and measured.
    • Optical aberrations and wavefront errors were analyzed to quantify misalignment sensitivities.

    Main Results:

    • The experimental results demonstrate that the 1-dimensional filtering properties of the fiber reference do not influence misalignment sensitivities.
    • The measured misalignment sensitivities are approximately half of the values previously reported for cylindrical test misalignment.
    • The study quantifies specific misalignment sensitivities for fiber references.

    Conclusions:

    • Fiber reference misalignment errors in cylindrical wave tests are experimentally characterized.
    • The unique 1D filtering of the fiber reference does not alter its misalignment sensitivity.
    • The findings provide crucial data for the accurate realignment of misaligned fiber references in laboratory settings.