Multiplexing vortex beams using miniaturized 3D-printed optical phase elements

S. Lightman, G. Hurvitz, R. Gvishi, J. M. Wengrowicz, Ady Arie

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The ability to multiplex and demultiplex optical vortex beams using 3D-laser printed elements is investigated theoretically. This method of multiplexing and demultiplexing is based on two optical elements that serve as Log-polar transforming elements. The functionality of the structures is highly sensitive to the structures' surface roughness. Hence, various calculations and simulations are demonstrated to achieve ultimate vortex beams multiplexing and demultiplexing capabilities of the 3Dprinted elements. The beams spatial intensity and phase distributions are investigated during the transformations, along with surface roughness analysis that accompany the 3D-small scale fabrication process. Surface roughness effects are shown, as incoming beams of various orbital angular momentum values propagate inside the transforming optical elements of different surface roughness. The cross-talk between 11 incoming modes is demonstrated, in various systems of varied surface roughness, 1, 1.3 and 1.5 μm accordingly. In addition, the lateral intensity and phase distributions of the various incoming modes are shown, to provide a characterization tool to analyze the elements performance.

Original languageEnglish
Title of host publication3D Printed Optics and Additive Photonic Manufacturing
EditorsGeorg von Freymann, Manuel Flury, Alois M. Herkommer
PublisherSPIE
ISBN (Electronic)9781510618763
DOIs
StatePublished - 2018
Event3D Printed Optics and Additive Photonic Manufacturing 2018 - Strasbourg, France
Duration: 23 Apr 201824 Apr 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10675
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference3D Printed Optics and Additive Photonic Manufacturing 2018
Country/TerritoryFrance
CityStrasbourg
Period23/04/1824/04/18

Keywords

  • 3D-direct laser printing
  • Beam shaping
  • Orbital angular momentum light
  • Phase element
  • Surface roughness
  • Transformation optics

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