Author Affiliations
Abstract
Jilin Key Laboratory of Solid-State Laser Technology and Application, , Changchun 130022, China
A continuous-wave (CW) -polarized 1084 nm laser based on under 888 nm thermally boosted pumping is reported. According to the absorption spectrum and energy level structure of , the 888 nm laser diode (LD) is used for thermally boosted pumping. This pumping method eliminates the quantum defect caused by the nonradiative transition in under the traditional 813 nm pumping and effectively improves the serious thermal effect of the crystal. The unmatched polarized 1093 nm laser is completely suppressed, and the -polarized laser output of 1084 nm in the whole pump range is realized by the 888 nm thermally boosted pumping. In the present work, we achieved the CW -polarized 1084 nm laser with a maximum output power of 7.53 W and a slope efficiency of about 46.1%.
continuous-wave laser π-polarization Nd:MgO:LiNbO3 thermally boosted pumping Chinese Optics Letters
2022, 20(12): 121401
1 西安交通大学电子材料研究室, 西安 710049
2 清华大学电子工程系,北京 100084
通过镁离子内扩散方法.实现了沿α轴生长的Nd:MgO:LiNbO3单晶光纤具有阶跃折射率分布的芯-包层波导结构。并研制成LD泵浦的该包层单晶光纤室温腔外倍频激光器,在19 mW的1.064 μm入射光功率下,得到10 μW的0.532 μm的连续绿光输出。
Nd:MgO:LiNbO3单晶光纤 镁离子内扩散 包层 LD泵浦 倍频激光器.Nd:YVO4晶体
1 同济大学波尔研究所, 上海 200092
2 上海交通大学物理系, 上海 200052
用质子交换法制备了Nd:MgO:LiNbO3波导。通过测量平面波导的二次离子质谱,得到了波导的原子组分分布,并测量了Nd:MgO:LiNbO3晶体的吸收谱线,最后利用端面耦合,分别得到了条波导内和衬底内激光诱导的荧光谱线。
Nd:MgO:LiNbO3光波导 质子交换 二次离子质谱 荧光谱
以Nd:MgO:LiNbO3同时兼作激活介质和非线性光学材料,研究自倍频激光器。用小型氙灯泵浦,在室温下获得二次谐波激光(0.547 μm) 阈值小于4.8'J,最大输出400μJ/shot,工作温度范围大于20℃~45℃,无光损伤。
自倍频 二次谐波产生
本文首次报道Nd:MgO:LiNbO3晶体的折射率、位相匹配角及其室温自倍频激光器的测量结果。在26 ℃时,用小型氙灯泵浦,获得了每个脉冲400 μJ的纯绿光输出,阈值小于4.8 J,器件工作温度范围为25 ℃到45 ℃,没有观察到光折变现象。
Nd:MgO:LiNbO3晶体 折射率 自倍频激光器