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Updated: Feb 20, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
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Simple method for efficient reconfigurable optical vortex beam splitting.

Alexey P Porfirev, Svetlana N Khonina

    Optics Express
    |October 19, 2017
    PubMed
    Summary

    Researchers developed an efficient method for splitting vortex laser beams using a compact diffractive optical element. This technique enables the reconfigurable generation of multiple optical vortex arrays for diverse applications in optics and photonics.

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    Area of Science:

    • Optics and Photonics
    • Structured Light
    • Singular Optics

    Background:

    • Singular light beams with orbital angular momentum are key components of structured light.
    • Advancements in singular optics include the generation of multiple vortex beams.
    • Current methods for generating multiple vortex beams can be complex or inefficient.

    Purpose of the Study:

    • To present a novel and efficient method for vortex laser beam splitting.
    • To introduce a compact, pure-phase diffractive optical element for generating multiple vortex beams.
    • To demonstrate the reconfigurable generation of multiple closed-packed optical vortex arrays.

    Main Methods:

    • Design and implementation of a two-level pure-phase diffractive optical element.
    • Utilizing low-cost binary spatial light modulators or advanced fabrication techniques (electron beam lithography, photolithography).
    • Testing the element's performance in generating multiple vortex beams.

    Main Results:

    • The proposed diffractive optical element efficiently splits vortex laser beams.
    • It enables the reconfigurable generation of multiple, closed-packed optical vortex beams.
    • The element operates effectively over a wavelength range of approximately 8% of the central wavelength.

    Conclusions:

    • The developed method offers an efficient and compact solution for generating optical vortex arrays.
    • The diffractive optical element is versatile and can be implemented using various fabrication technologies.
    • This technique holds significant potential for applications in modern optics and photonics requiring structured light.