Development and experimental demonstration of negative first-order quasi-phase matching in a periodically poled Rb-doped KTiOPO_4 crystal

التفاصيل البيبلوغرافية
العنوان: Development and experimental demonstration of negative first-order quasi-phase matching in a periodically poled Rb-doped KTiOPO_4 crystal
المؤلفون: Petit, Yannick, Peña, Alexandra, Segonds, Patricia, Debray, Jérôme, Joly, Simon, Zukauskas, Andrius, Laurell, Fredrik, Pasiskevicius, Valdas, Canalias, Carlota, Boulanger, Benoît
المصدر: Optics Letters; November 2020, Vol. 45 Issue: 21 p6026-6029, 4p
مستخلص: We worked on a new scheme of quasi-phase matching (QPM) based on the negative first order of the spatial modulation of the sign of the second-order nonlinearity. Applying this scheme in the case of angular-QPM (AQPM) in a biaxial crystal reveals new directions of propagation for efficient parametric frequency conversion as well as “giant” spectral acceptances. The experimental validation is performed in a periodically poled rubidium-doped KTiOPO_4 biaxial crystal. This new approach naturally extends to other periodically poled uniaxial crystals such as periodically poled LiNbO_3.
قاعدة البيانات: Supplemental Index