High-efficiency single-pass cw quasi-phase-matched frequency doubling based on PP-MgO: SLT

• 来源期刊: 中国物理（英文版）
• 关键词: quasi-phase-matching periodically poled MgO-doped stoichiometric lithium tantalate(PP-MgO:SLT) second-harmonic generation angular acceptance bandwidth
• 年，卷（期）: 2005,（2）
• 页码范围: 353-358
• 页数: 6页
• 语种: 英文

摘要

We demonstrate a single-pass cw quasi-phase-matched (QPM) frequency doubling based on periodically poled MgO-doped stoichiometric lithium tantalate (PP-MgO:SLT) with crystal length of 20mm. For the maximum 1064nm fundamental power of 7.69W, the maximum conversion efficiency and the maximum output second-harmonic power are 11.8% and 905mW, respectively. In the experiment we found that the optimum temperature of the oven for PPMgO:SLT should be adjusted with the change of the fundamental power and the focal length. In addition, angular acceptance bandwidth and temperature acceptance bandwidth are studied. Their experimental results are in good agreement with the theoretical calculations.