Miniaturized electro-optic infrared beam-manipulator based on 3D photorefractive funnels

J. Parravicini, F. Di Mei, D. Pierangeli, A. J. Agranat, E. DelRe

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


We demonstrate tunable electro-optic guiding, shaping, and switching of beams in the near infrared spectrum (λ ≃ 980 nm), typical of VCSEL technology, using biomimetic 3D funnel waveguides miniaturized into a sample of potassium-lithium-tantalate-niobate. The switchable waveguides are written using the slow photorefractive build-up of a 3D volume space-charge field caused by a diffracting continuous wave low intensity λ = 532 nm beam, and electro-optic functionality is supported by the quadratic electro-optic effect of the high-symmetry paraelectric phase.

Original languageAmerican English
Article number055501
Pages (from-to)1-5
Number of pages5
JournalJournal of Optics (United Kingdom)
Issue number5
StatePublished - 1 May 2015

Bibliographical note

Publisher Copyright:
© 2015 IOP Publishing Ltd.


  • Arrays
  • Couplers
  • Nonlinear guided waves
  • Nonlinear waveguides
  • Optical solitons
  • Optical waveguides and couplers
  • Waveguides


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