摘要
为了研究单模Er3+/Yb3+共掺双包层光纤中的上转换效应,采用对比实验的方法,用荧光分光光度计测量了单模Er3+/Yb3+共掺双包层光纤的绿色荧光,并与掺Yb3+光纤的绿色荧光进行了对比分析。得到Er3+/Yb3+共掺双包层光纤中的绿色荧光仍然是Er3+离子激发态吸收所产生,而Yb3+只起到能量搬运作用的结果。结果表明,两种光纤受激产生的荧光光谱、功率及其随抽运功率的变化关系,都遵循不同规律。
In order to study the frequency up-conversion in single model double cladding Er^3 ＋ -Yb^3 ＋ co-doped fiber, the green fluorescence emitted by single model double cladding Er^3 ＋-Yb^3＋ co-doped fiber was measured with a fluorphotometer and compared with the green fluorescence in Yb^3 ＋ doped fiber. The results show that the fluorescence in the single model double cladding Er^3＋ -Yb^3＋ co-doped fiber is attributed to the absorption of Er^3 ＋ ions in the excited state of and the Yb^3＋ ions only transfer the pump energy to the Er^3 ＋ ions. It leads to the difference of emissive fluorescence between the double cladding Er^3 ＋ - Yb^3 ＋ co-doped fiber and Yb^3＋ doped fiber in the spectra and the power and its variation law.
出处
《激光技术》
CAS
CSCD
北大核心
2008年第6期639-641,662,共4页
Laser Technology
基金
国家自然科学基金资助项目(60477029)
关键词
激光物理
光纤激光
上转换效应
双包层光纤
绿色荧光
laser physics
fiber laser
up-conversion
double cladding fiber
green fluorescent
