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Effects of annealing on modal properties and second-harmonic generation in periodically poled LiTaO3 channel waveguides

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2 Author(s)
Wong, Victor ; Imaging Research and Advanced Development, Eastman Kodak Company, Rochester, New York 14650-1822 ; Gupta, Mool C.

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.369021 

We provide a systematic investigation of the effects of annealing on modal properties and second-harmonic generation in periodically domain-reversed LiTaO3 channel waveguides. Prism-coupling studies show complex spatial mode distributions and strong dependence of waveguide modal properties on index profiles. Second-harmonic measurements observe the recovery of the optical nonlinear coefficient by annealing. The optimum conversion efficiency is obtained in a very narrow window of annealing time. A considerably large shift in quasi-phase-matching wavelength is also documented. Measurement results are correlated with theoretical modeling. © 1998 American Institute of Physics.

Published in:

Journal of Applied Physics  (Volume:84 ,  Issue: 12 )

Date of Publication:

Dec 1998

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