光学与光电技术, 2008, 6 (2): 0093, 网络出版: 2010-05-24  

双端抽运的掺Yb3+双包层光纤激光器中合作发光效应

Cooperative Luminescence Effect in Yb3+ Doped Double Clad Fiber Laser
作者单位
1 中国工程物理研究院激光聚变研究中心,四川 绵阳 621900
2 中国工程物理研究院研究生部,四川 绵阳 621900
3 西安通信学院军用光纤通信教研室,陕西 西安 710106
摘要
合作发光效应、热效应以及非线性效应限制了单根掺Yb3+光纤激光器输出功率的进一步提高。根据能级间的吸收与辐射,分析了掺Yb3+双包层光纤中的合作发光效应,分析表明,随着Yb3+的掺杂浓度的增大,光纤中合作发光增强,抽运光越强,合作发光也越强。实验研究了输出功率61.6W,斜率效率为55%的双端抽运的掺Yb3+双包层光纤激光器的合作发光效应,研究表明,随着抽运光功率的增大,合作发光强度增强,掺杂浓度越大,光纤中合作发光效应也越强。这一结果有利于进一步提高掺Yb3+光纤激光器的效率。
Abstract
The output power of the Yb3+ doped double clad fiber with single fiber was limited by the cooperative luminescence, thermal effect and nonliner effect. The cooperative luminescence effect of the Yb3+ doped double clad fiber was analyzed based on obsorption and emission between energy levels. The results showed that the cooperative luminescence was stronger while the Yb3+ concentration increased and the pumping power was higher. The cooperative luminescence of the high power cladding-pumped Yb3+ doped fiber laser was demonstrated when the output power was 61.6 W and the slop efficiency was 55%. The results show that when the Yb3+ concentration and the puming power are higher, the cooperative luminescence is stronger. It is helpful to improve the efficiency of the Yb3+ doped fiber laser.

许党朋, 李明中, 隋展, 林宏奂, 王建军, 张锐, 卢振华, 车雅良, 黄小东. 双端抽运的掺Yb3+双包层光纤激光器中合作发光效应[J]. 光学与光电技术, 2008, 6(2): 0093. XU Dang-peng, LI Ming-zhong, SUI Zhan, LIN Hong-huan, WANG Jian-jun, ZHANG Rui, LU Zhen-hua, CHE Ya-liang, HUANG Xiao-dong. Cooperative Luminescence Effect in Yb3+ Doped Double Clad Fiber Laser[J]. OPTICS & OPTOELECTRONIC TECHNOLOGY, 2008, 6(2): 0093.

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