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1. Second harmonic generation in surface periodically-poled lithium niobate waveguides: on the role of multiphoton absorption

Author

Cherchi, M., Stivala, S., Pasquazi, A., Busacca, A. C., Sanseverino, S. Riva, Cino, A. C., Colace, L., and Assanto, G.

Subjects
Physics - Optics
Abstract

Second harmonic generation is investigated in lithium niobate channels realized by proton exchange and quasi-phase-matched by surface periodic-poling. The reduction in conversion efficiency at high powers is interpreted in terms of multi-photon absorption via two-color terms, yielding an estimate of the dominating three-photon process., Comment: 2 pages, 6 figures

Published
2009
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