A micro-structured aperture made of a hollow triangular-core fiber for novel beam shaping | Zendy

Woosung Ha | Zendy; Sejin Lee | Zendy; Jongki Kim | Zendy; Yoonseob Jeong | Zendy; Kyunghwan Oh | Zendy; Jens Kobelke | Zendy; Kay Schuster | Zendy; Sonja Unger | Zendy; Anka Schwuchow | Zendy; Jun Ki Kim | Zendy

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A micro-structured aperture made of a hollow triangular-core fiber for novel beam shaping

Author(s) -

Woosung Ha,

Sejin Lee,

Jongki Kim,

Yoonseob Jeong,

Kyunghwan Oh,

Jens Kobelke,

Kay Schuster,

Sonja Unger,

Anka Schwuchow,

Jun Ki Kim

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.020918

Subject(s) - optics , cladding (metalworking) , materials science , numerical aperture , optical fiber , diffraction , core (optical fiber) , beam propagation method , beam (structure) , photonic crystal fiber , refractive index , physics , wavelength , metallurgy

We demonstrate a micro-structured aperture made of a unique hollow triangular-core fiber (HTCF) that consists of a central air hole, a high-index hollow triangular core, and silica cladding for all-fiber novel beam shaping. Detailed fabrication processes to embed a hollow triangular structure into a cylindrical optical fiber are described and unique diffraction patterns out of the HTCF for monochromatic light are analyzed both experimentally and theoretically. Fourier-optic analysis combined with guided mode calculation was pursued to interpret experimental patterns in terms of the beam propagation distance.

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