Period Continuous Tuning of an Efficient Mid-Infrared Optical Parametric Oscillator Based on a Fan-out Periodically Poled MgO-Doped Lithium Niobate

• 作者: 张树宝 张玲 李晋闽 林学春 熊波 郭林
• 来源期刊: 中国物理快报(英文版)
• 学科: 工学
• 关键词: 中红外光参量振荡器 温度调谐 铌酸锂 镁掺杂 扇出 周期极化 Nd:YAG激光器 平均功率
• 年，卷（期）: 2010,（1）
• 页码范围: 140-143
• 页数: 4页
• 分类号: TN752 TN753.91
• 语种: 英文

摘要

We report a period continuously tunable, efficient, mid-infrared optical parametric oscillator (OPO) based on a fan-out periodically poled MgO-doped congruent lithium niobate (PPMgLN). The OPO is pumped by a Nd:YAG laser and a maximum idler output average power of 1.65W at 3.93μm is obtained with a pump average power of 10.5W, corresponding to the conversion efficiency of about 16%from the pump to the idler. The output spectral properties of the OPO with the fan-out crystal are analyzed. The OPO is continuously tuned over 3.78-4.58μm (idler) when fan-out periods are changed from 27.0 to 29.4μm. Compared with temperature tuning, fan-out period continuous tuning has faster tuning rate and wider tuning range.