High intensity illumination effects in LiNbO3 and KTiOPO4 waveguides
- 1 August 1997
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 82 (3) , 998-1005
- https://doi.org/10.1063/1.365939
Abstract
Quasi-phase-matched waveguides are known to degrade when generating high intensity short wavelength light. Photoinduced changes in the refractive indices can lead to reduced efficiency by broadening phase-matching curves or inducing power dependent losses. In this work a pump-probe technique was used to investigate photorefractive effects in nonlinear optical waveguides. A strong two photon photorefractive effect in single domain and Ti-poled LiNbO3 was found that is considerably reduced in electric field periodically poled LiNbO3 and is absent in Rb-exchanged KTiOPO4.This publication has 21 references indexed in Scilit:
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