High energy quasi-phase matched optical parametric oscillation using Mg-doped congruent LiTaO3 crystal

[摘要]：We report on high energy optical parametric oscillation of 118 mJ output with similar to 70% slope efficiency in 10 ns duration of 30 Hz operation by using Mg-doped congruent composition LiTaO3 (MgLT). The periodically poled MgLT device with similar to 30 mu m period for quasi-phase matching (QPM) in 5-mm-thick crystal are prepared. MgLT crystal could become a candidate for high-energy and higher durability material of QPM device, compared to conventional Mg-doped congruent composition LiNbO3. (C)2009 Optical Society of America

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