Thermally induced self-focusing and optical beam interactions in planar strontium barium niobate waveguides
- 1 March 1998
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 23 (5) , 343-345
- https://doi.org/10.1364/ol.23.000343
Abstract
We present an experimental study of thermally induced self-focusing effects and interactions of incoherent light beams in strontium barium niobate waveguides. Depending on the input power, a single parallel beam is strongly focused inside the sample up to diameters of several micrometers. For higher input power we observe the splitting of the beam in a sequence of several spots. We demonstrate that these thermally induced refractive-index patterns can be used to focus and deflect an incoherent guided probe beam in the waveguide with time constants below 1 ms.Keywords
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