First-order quasi-phase matched LiNbO3 waveguide periodically poled by applying an external field for efficient blue second-harmonic generation

• DOI: 10.1063/1.108925
• Publication Date: 2002-07-26T13:36:08Z
• Authors: M. Yamada; N. Nada; M. Saitoh; K. Watanabe
• Keywords: 0103 physical sciences; 01 natural sciences; 7. Clean energy

A novel method of fabricating a periodic domain structure with ideal laminar domains in LiNbO3 by applying an external field at room temperature is proposed. The method allows a high blue beam power of 20.7 mW and a high conversion efficiency of 600%/W cm2 to be obtained.