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The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
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Cylindrical vector beam generator using a two-element interferometer.

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    Summary
    This summary is machine-generated.

    We developed a compact cylindrical vector beam generator using a simple interferometer. This device efficiently transforms vortex beams into various cylindrical vector (CV) beams, offering a novel optical element alternative.

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    Area of Science:

    • Optics and Photonics
    • Laser Physics

    Background:

    • Cylindrical vector (CV) beams possess unique polarization properties crucial for advanced optical applications.
    • Existing methods for generating CV beams often involve complex setups or specialized optical elements.

    Purpose of the Study:

    • To develop a robust, compact, and simple generator for cylindrical vector (CV) beams.
    • To demonstrate the transformation of vortex beams into various CV beam types using a novel interferometer.

    Main Methods:

    • Utilized a two-element interferometer comprising a beam displacer and a cube beamsplitter.
    • Employed the higher-order Poincaré sphere framework to analyze the polarization transformation process.
    • Experimentally validated the conversion of a single vortex beam into different CV beams.

    Main Results:

    • Successfully generated a robust and compact cylindrical vector beam.
    • Demonstrated the transformation of a vortex beam into all well-known CV beam types.
    • Showcased control over CV beam generation via parameters on the higher-order Poincaré sphere.

    Conclusions:

    • The developed interferometer provides an efficient and simple method for generating CV beams.
    • This approach offers a viable alternative to Pancharatnam-Berry phase optical elements.
    • The design has potential for monolithic integration, simplifying optical systems.