Electro-optically controlled beam deflection for grazing incidence geometry on a domain-engineered interface in LiNbO3

Robert W. Eason, Alexander J. Boyland, Sakellaris Mailis, Peter G.R. Smith

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

We report an analysis on the electro-optically induced beam deflection experienced by light traversing an interface between two anti-parallel domains in a sample of LiNbO3. In contrast to other work on prism deflection schemes, we present a grazing incidence geometry for light at incidence angles between 87.7° and 89.0° that has been investigated to maximise the deflection angles achievable. Further improvements can be obtained for both range of angular deflection and transmission uniformity, by faceting the exit face of the device at an optimum angle. We present a theoretical analysis for this configuration and compare with data obtained for a wavelength of 1.52 μm. A practical geometry would permit a deflection of ∼140 mrad for an applied voltage of 1 kV.

Original languageEnglish
Pages (from-to)201-207
Number of pages7
JournalOptics Communications
Volume197
Issue number1-3
DOIs
Publication statusPublished - 15 Sep 2001
Externally publishedYes

Keywords

  • Beam deflection
  • Beam scanning
  • Domain engineering
  • Electro-optic effect
  • Lithium niobate

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