3D printed photonic structure for generation to zeroth- And high-order Bessel beams from a single-mode optical fiber

Abstract
Bessel beams have gained prominence due to their diffraction-free propagation and self-healing properties [1]. The zeroth-order Bessel beam has maximum intensity at its center and has found many applications, including optical trapping and bio-imaging. On the other hand, higher-order Bessel beams have a node due to a phase singularity and carry orbital angular momentum (OAM). Over the past years, Bessel beams have been generated by using different approaches, namely by Fourier transforming a narrow circular beam with a lens, by using axicons and with holographic beam shaping techniques. The need to miniaturize optics has led to efforts towards the on-fiber generation of Bessel beams. The successful attempts include the fabrication of a customized annular-core fiber along with a polymer lens [2], or modifying the end of the fiber to an axicon profile with chemical or lithographic methods [3]. These techniques have limited capability on generating Bessel beams with on-demand optical parameters and are only focused on creating zeroth-order Bessel beams from optical fibers.

Citation
Reddy, I. V. A. ., Bertoncini, A., & Liberale, C. (2021). 3D printed photonic structure for generation to zeroth- and high-order Bessel beams from a single-mode optical fiber. 2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). doi:10.1109/cleo/europe-eqec52157.2021.9541753

Publisher
IEEE

Conference/Event Name
2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021

DOI
10.1109/CLEO/Europe-EQEC52157.2021.9541753

Additional Links
https://ieeexplore.ieee.org/document/9541753/

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