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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 18, Iss. 5 — May. 1, 2001
  • pp: 1186–1191

Characterization of α-phase soft proton-exchanged LiNbO3 optical waveguides

Yu. N. Korkishko, V. A. Fedorov, E. A. Baranov, M. V. Proyaeva, T. V. Morozova, F. Caccavale, F. Segato, C. Sada, and S. M. Kostritskii  »View Author Affiliations


JOSA A, Vol. 18, Issue 5, pp. 1186-1191 (2001)
http://dx.doi.org/10.1364/JOSAA.18.001186


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Abstract

Waveguides in LiNbO<sub>3</sub> are realized by a soft proton exchange (SPE) process with use of a melt of stearic acid highly diluted by lithium stearate. No phase transitions are formed when α-phase waveguides are obtained by SPE. The α-phase presents the same crystalline structure as that of pure LiNbO<sub>3</sub> crystal, and it maintains the excellent nonlinear and electro-optical properties of the bulk material. The kinetics of the SPE method is studied by the use of secondary-ion mass spectrometry and prism-coupling techniques. The hydrogen effective diffusion coefficient as well as the self-diffusion coefficients of H<sup>+</sup> and Li<sup>+</sup> ions are determined as a function of the proton-exchange temperature for X-cut LiNbO<sub>3</sub>.

© 2001 Optical Society of America

OCIS Codes
(130.3130) Integrated optics : Integrated optics materials

Citation
Yu. N. Korkishko, V. A. Fedorov, E. A. Baranov, M. V. Proyaeva, T. V. Morozova, F. Caccavale, F. Segato, C. Sada, and S. M. Kostritskii, "Characterization of α-phase soft proton-exchanged LiNbO3 optical waveguides," J. Opt. Soc. Am. A 18, 1186-1191 (2001)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-18-5-1186

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