Abstract

We report a new method of tuning the second-harmonic signal generated in a periodically poled lithium niobate (PPLN) waveguide. This technique relies on the recent progress in the fabrication of PPLNs on x-cut substrates along with periodical coplanar electrodes to reduce the tuning voltage while preserving the conversion efficiency. Our scheme exploits a type I interaction implemented in a titanium waveguide to impede cancellation of the electro-optical coefficients and to minimize the group-velocity mismatch between the first- and second-harmonic modes. The tuning range covers 58nm with an applied voltage of ±150V.

© 2007 Optical Society of America

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Corrections

F. Généreux, G. Baldenberger, B. Bourliaguet, and R. Vallée, "Low-voltage tunable second-harmonic generation in an x-cut periodically poled lithium niobate waveguide: erratum," Opt. Lett. 32, 2124-2124 (2007)
https://www.osapublishing.org/ol/abstract.cfm?uri=ol-32-15-2124

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