A novel method for laser-induced periodic domain reversal in LiNbO3 [nonlinear optical waveguide] |
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| Authors: | Daneshvar K Dong Hee Kang |
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| Affiliation: | Dept. of Electr. & Comput. Eng., North Carolina Univ., Charlotte, NC; |
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| Abstract: | An intense laser light in conjunction with a strong localized field is used to reverse the polarity of the ferroelectric domain at the location of a laser beam. The focus beam from an argon laser raises the temperature of a moving z-cut LiNbO3 plate close to the Curie point when a bipolar square wave electric field is applied. This technique has been used to construct a nonlinear periodic optical waveguide structure. This waveguide can be used for quasi-phase-matched second-harmonic generation. The applications of such waveguides are well documented in the literature |
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