Experimental investigations of the photorefractive damage in pure PPLN waveguide

Oleg Kashin1, Martin Hohmann1, Vladislav Matusevich1, Armin Kiessling1, Richard Kowarschik1, Frank Setzpfandt2, Thomas Pertsch2
  1. 1Institute of Applied Optics and Biophysics, Friedrich Schiller University Jena
  2. 2Institute of Applied Physics, Friedrich Schiller University Jena

oleg [dot] kashin [at] uni-jena [dot] de

Photorefractive damage in pure PPLN waveguides occurs during the SHG process and is an undesirable effect because it decreases the SHG efficiency. In this work we investigated the photorefractive response in periodically poled waveguide structures using an interferometric method. The modulation of the refractive index depends on temperature, input intensity and wavelength of the laser beam. The magnitude of the induced refractive index modulation can reach values in the order of 10e-5. The obtained experimental results offer the possibility to control the SHG process via the photorefractive effect or to realize different coupling processes in pure PPLN waveguide arrays.

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@inproceedings{kashin2009p43,
  author     = {Kashin, Oleg and Hohmann, Martin and Matusevich, Vladislav and Kiessling, Armin and Kowarschik, Richard and Setzpfandt, Frank and Pertsch, Thomas},
  title      = {{Experimental investigations of the photorefractive damage in pure PPLN waveguide}},
  booktitle  = {DGaO-Proceedings 2009},
  series     = {DGaO-Proceedings},
  eventtitle = {110. Jahrestagung der DGaO},
  eventdate  = {2009-06-02/2009-06-05},
  venue      = {Brescia},
  publisher  = {Deutsche Gesellschaft für angewandte Optik e.V.},
  year       = {2009},
  pages      = {P43},
  langid     = {english},
  url        = {https://dgao-proceedings.de/paper/110-p43}
}
110. Annual Conference of the DGaO · Brescia · 2009