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PHASE COMPOSITION OF PROTON-EXCHANGED WAVEGUIDES IN LiNbO3: A SPECTROSCOPIC STUDY

M. Kuneva1,* , S. Tonchev1, E. Thatsi2, D. Lampakis2

Affiliation

  1. Institute of Solid State Physics – Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd, 1784 Sofia, Bulgaria
  2. Department of Physics, National Technical University of Athens, Zografou Campus Heroon Polytechneiou 9, GR 15780 Athens, Greece

Abstract

Waveguiding layers in LiNbO3 crystal substrates with different crystallographic orientations were obtained using proton exchange technology. The phase composition of the waveguides was investigated by Raman, infrared and waveguide mode spectroscopy, and conclusions were made about the phases existing in the layers. The results obtained could be used for the estimation of the phase composition, and therefore of the optical and electro-optical properties of proton exchanged waveguides in LiNbO3..

Keywords

Optical waveguides, Proton exchange, IR-spectroscopy, Raman-spectroscopy.

Submitted at: Dec. 9, 2004
Accepted at: Jan. 26, 2005

Citation

M. Kuneva, S. Tonchev, E. Thatsi, D. Lampakis, PHASE COMPOSITION OF PROTON-EXCHANGED WAVEGUIDES IN LiNbO3: A SPECTROSCOPIC STUDY, Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 1, pp. 549-552 (2005)