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

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

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)20918-20925
Number of pages8
JournalOptics Express
Volume18
Issue number20
DOIs
Publication statusPublished - 2010 Sep 27

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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