Applied Physics A

, Volume 89, Issue 1, pp 127–132 | Cite as

Origins of waveguiding in femtosecond laser-structured LiNbO3

  • J. BurghoffEmail author
  • S. Nolte
  • A. Tünnermann
Rapid communication


Femtosecond laser-induced structural changes in LiNbO3 are studied. Depending on the laser processing parameters two different types of modification are identified and their origin is discussed. Both types of modification can be described within the framework of induced lattice defects. For strong material damage a refractive index increase can be obtained due to the induced stress field. By appropriate tailoring of this stress field thermally stable and highly symmetric waveguides can be obtained well suited for nonlinear integrated-optical applications.


Refractive Index Refractive Index Change Photorefractive Effect Relative Volume Change Refractive Index Distribution 
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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  1. 1.Institut für Angewandte PhysikFriedrich-Schiller-Universität JenaJenaGermany
  2. 2.Fraunhofer-Institut für Angewandte Optik und FeinmechanikJenaGermany

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