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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 5 — Mar. 2, 2009
  • pp: 3923–3928

Local periodic poling of ridges and ridge waveguides on X- and Y-Cut LiNbO3 and its application for second harmonic generation

L. Gui, H. Hu, M. Garcia-Granda, and W. Sohler  »View Author Affiliations

Optics Express, Vol. 17, Issue 5, pp. 3923-3928 (2009)

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Fabrication, characterization and application of periodical ferroelectric domains in ridges and Ti in-diffused ridge waveguides on X-and Y-cut Lithium Niobate (LN) are reported. The ridge waveguides of 3.5 μm height and 9 μm width were fabricated by inductively coupled plasma (ICP) etching followed by Ti in-diffusion into the ridges only. Appropriate electrodes on their side walls enabled domain inversion restricted to the ridge. The domain structure was investigated by selective chemical etching. Second harmonic generation in a 1.4 cm long ridge waveguide on an X-cut substrate was demonstrated at 1548 nm fundamental wavelength with an efficiency of 17% W-1.

© 2009 Optical Society of America

OCIS Codes
(160.2260) Materials : Ferroelectrics
(160.3730) Materials : Lithium niobate
(190.2620) Nonlinear optics : Harmonic generation and mixing
(230.7370) Optical devices : Waveguides

ToC Category:

Original Manuscript: December 19, 2008
Revised Manuscript: February 23, 2009
Manuscript Accepted: February 26, 2009
Published: February 27, 2009

Li Gui, Hui Hu, Miguel Garcia-Granda, and Wolfgang Sohler, "Local periodic poling of ridges and ridge waveguides on X- and Y-Cut LiNbO3 and its application for second harmonic generation," Opt. Express 17, 3923-3928 (2009)

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