Planar-waveguide quasi-phase-matched second-harmonic-generation device in Y-cut MgO-doped LiNbO3.
We designed a planar-waveguide quasi-phase-matched second-harmonic-generation device, which consists of a Y-cut periodically poled 5 mol.% MgO-doped LiNbO3 core and SiO2 claddings, that provided a 1.08 W green light with 30% conversion efficiency by using a 7 mm long sample at room temperature. The highest conversion efficiency of 49% at 0.88 W second-harmonic generation was attained by using an 18 mm long device.
Sakai
Kiyohide
K
Information Technology R&D Center, Mitsubishi Electric Corporation, Kamakura, Kanagawa 247-8501, Japan. Sakai.Kiyohide@aj.MitsubishiElectric.co.jp
Koyata
Yasuharu
Y
Hirano
Yoshihito
Y