节点文献

可调谐掺铒光纤激光器及超荧光光纤光源的研究

Studies on Tunable Er~(3+) Doped Fiber Laser and Super-fluorescent Fiber Source

【作者】 王颖

【导师】 杨天新;

【作者基本信息】 天津大学 , 物理电子学, 2004, 硕士

【摘要】 本论文对可调谐光纤激光器做了简要综述,对可调谐掺铒光纤激光器进行了理论分析和实验研究,文章最后还对超荧光光纤光源进行了理论分析和实验研究。具体做了以下工作: 1 首先在第一章介绍了光纤激光器的分类及其工作原理,以及可调谐激光器的发展现状。 2 论文在第二章介绍了可调谐半导体激光器的工作原理,以及用于可调谐光纤激光器的可调谐滤波器的工作原理。论文还在此章着重介绍了 F-P 滤波器的工作原理,特性参数以及级联 F-P 滤波器的性能和基本结构,并分析计算了一个应用的例子。 3 在第三章中,首先介绍了掺铒光纤激光器的设计原理,又分析了掺铒光纤激光器工作在 L 波段的原理。利用楔形膜可调谐滤波器,自制的 F-P 角度调谐滤波器,以及保偏光纤环形镜分别作为调谐装置,设计了 C 带可调谐掺铒光纤激光器,并进行了实验研究。利用楔形膜可调谐滤波器获得了最佳输出效果,调谐范围是 1528nm-1563nm,覆盖了大部分 C 带,激光输出功率可达1mW,线宽可达 0.094nm。 4 此外,还设计了利用保偏光纤环形镜作为调谐装置的 L 带可调谐光纤激光器,并进行了实验研究。其中双级泵浦 L 带可调谐光纤激光器和加入 FBG的 L 带可调谐光纤激光器获得了理想的效果,可调谐范围从 1565nm-1615nm,基本覆盖了整个 L 带,激光的输出功率大于 1mW,线宽在 0.6nm 左右。 5 在最后一章,首先分析了光纤超荧光的产生原理及其基本结构,接着设计了 L 带以及宽带超荧光光源,并进行了实验。得到的 L 带超荧光输出的 3dB带宽从 1565nm-1610nm;宽带超荧光输出的 3dB 平坦度内的带宽从1550nm-1607nm,其总的转换效率为 12.3%。

【Abstract】 In this dissertation, theoretical and experiment studies of tunable Er3+ doped fiberlaser are presented. In the end ,the study about Super-fluorescent Source(SFS) isalso presented. Several works is carried out as follows: 1 In the first chapter, the working principles of different fiber lasers and thedeveloping condition of tunable lasers are introduced. 2 In the second chapter, the operating principles of tunable semiconductor lasersand the tunable principles of tunable filters are introduced. Moreover, the chapter isalso emphasized on the principle special parameters of F-P filter.The characteristicsand basic structures ofcascade F-P filters are also presented. 3 In the third chapter, firstly, we introduce the design principle of Er3+ dopedfiber laser. Secondly, the theory of Er3+ doped fiber laser working at L-band isanalyzed. In the following, we designed different fiber lasers which are working atC-band by different filters.The best outcome obtained by cuniform membrane filter.The tunable range is 1528nm-1563nm, which almost cover entire C-band. Outputpower is 1mW and bandwidth is 0.094nm. 4 In addition, we designed different kinds of tunable L-band fiber lasers whichare tuned by PMF-FLM. Among them, the ideal outcomes obtained by doublepumped structure and the structure with a FBG. The tunable range is 1565nm-1615nm,which is almost cover entire L-band. The output power is more than 1mW and thebandwidth is about 0.6nm. 5 At the last chapter, we analyzed the principle and the structures of SFS. In thefollowing, we designed L-band SFS and broad band SFS.The 3dB bandwidth ofL-band SFS is 1565nm-1610nm.And that of broadband is 1550- 1607nm.The totalefficiency of it is 12.3%.

  • 【网络出版投稿人】 天津大学
  • 【网络出版年期】2004年 04期
  • 【分类号】TN248
  • 【被引频次】3
  • 【下载频次】358
节点文献中: 

本文链接的文献网络图示:

本文的引文网络