【摘 要】
：
随着光纤激光器输出功率不断提高,高功率激光光纤的制备在工艺上要求更大尺寸的芯棒和对光纤预制棒稀土离子的掺杂浓度及掺杂均匀性有较高的要求。我们采用改进化学气相沉积工艺结合稀土螯合物掺杂工艺制备了掺镱光纤预制棒,并且对光纤预制棒的物理性能和材料性能进行了分析研究。实验结果表明,该预制棒稀土离子掺杂浓度较高,并且具有较好的均匀性；稀土镱的特征吸收区在850nm-l050nm,主峰为977nm,荧光中心波
【机 构】
：
激光聚变研究中心,中国工程物理研究院,绵阳,621900,中国;IFSA协同创新中心,上海交通大学,上海,200240,中国
【出 处】
：
第八届中国功能玻璃学术研讨会暨新型光电子材料国际论坛
论文部分内容阅读
随着光纤激光器输出功率不断提高,高功率激光光纤的制备在工艺上要求更大尺寸的芯棒和对光纤预制棒稀土离子的掺杂浓度及掺杂均匀性有较高的要求。我们采用改进化学气相沉积工艺结合稀土螯合物掺杂工艺制备了掺镱光纤预制棒,并且对光纤预制棒的物理性能和材料性能进行了分析研究。实验结果表明,该预制棒稀土离子掺杂浓度较高,并且具有较好的均匀性；稀土镱的特征吸收区在850nm-l050nm,主峰为977nm,荧光中心波长为1020nm,并且具有较高的量子产率；并且在本文中,我们还通过理论计算了掺镱光纤预制棒的积分吸收截面,受激发射截面,荧光线宽,荧光寿命,饱和抽运强度等参数。测试结果表明稀土掺杂预制棒具有良好的热稳定性和大的功率阈值,是较理想的增益介质。
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