Second-harmonic generation in surface periodically poled lithium niobate waveguides: on the role of multiphoton absorption RID C-6517-2008
| Autor: | Cherchi M, Stivala S, Pasquazi A, Busacca AC, Sanseverino SR, Cino AC, Colace L, ASSANTO, GAETANO |
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| Přispěvatelé: | Cherchi, M, Stivala, S, Pasquazi, A, Busacca, Ac, Sanseverino, Sr, Cino, Ac, Colace, Lorenzo, Assanto, Gaetano, Colace, L |
| Rok vydání: | 2008 |
| Předmět: | |
| Popis: | 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 multiphoton absorption via two-color terms, yielding an estimate of the dominating three-photon process. |
| Databáze: | OpenAIRE |
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