论文部分内容阅读
分析了Yb3+的能级结构、光谱特性以及激光发射特性。实验研究了中心波长为1100 nm、输出功率为61.6W、斜率效率为55%的高功率掺Yb3+双包层光纤激光器。采用了两个中心波长在915 nm的高功率激光二极管分别从光纤的两端将泵浦光耦合进入光纤,采用45°对波长在(1100±10)nm的激光高反,对波长在(915±10)nm的泵浦光高透的双色镜将激光输出,实验发现了掺Yb3+双包层光纤的合作发光效应。理论分析表明,掺Yb3+双包层光纤中合作发光效应是由Yb3+对在激光产生过程中的吸收与发射引起的。
The energy level structure, spectral characteristics and laser emission characteristics of Yb3 + were analyzed. Experimental study of the center wavelength of 1100 nm, the output power of 61.6W, the slope of the efficiency of 55% Yb3 + -doped double-clad fiber lasers. Two high-power laser diodes with a center wavelength of 915 nm are used to couple the pump light into the optical fiber from both ends of the optical fiber respectively. The laser light of (1100 ± 10) ± 10) nm pump light through the dichroic mirror will laser output, the experiment found Yb3 + doped double-clad fiber co-luminescent effect. Theoretical analysis shows that the Yb3 + -doped double-clad fiber has a cooperative luminescence effect caused by the absorption and emission of Yb3 + in the laser generation process.