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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 24 — Nov. 19, 2012
  • pp: 26922–26928

Electro-optical tunable waveguide Bragg gratings in lithium niobate induced by femtosecond laser writing

W. Horn, S. Kroesen, J. Herrmann, J. Imbrock, and C. Denz  »View Author Affiliations

Optics Express, Vol. 20, Issue 24, pp. 26922-26928 (2012)

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We report the fabrication of femtosecond laser-induced, first-order waveguide Bragg gratings in lithium niobate in the low repetition rate regime. Type-II waveguides are written into an x-cut lithium niobate wafer and structured periodically to achieve narrowband reflections at wavelengths around 1550 nm. Additionally, electrodes are employed to allow for electro-optic tuning of the spectral response. We demonstrate wavelength control of the central reflection peak by applying a static external electric field. A maximum shift of the reflection peak of Δλ = 625 pm is observed.

© 2012 OSA

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(160.3730) Materials : Lithium niobate
(220.0220) Optical design and fabrication : Optical design and fabrication
(230.1950) Optical devices : Diffraction gratings
(230.7370) Optical devices : Waveguides

ToC Category:
Integrated Optics

Original Manuscript: August 16, 2012
Revised Manuscript: October 21, 2012
Manuscript Accepted: October 23, 2012
Published: November 14, 2012

W. Horn, S. Kroesen, J. Herrmann, J. Imbrock, and C. Denz, "Electro-optical tunable waveguide Bragg gratings in lithium niobate induced by femtosecond laser writing," Opt. Express 20, 26922-26928 (2012)

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