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| 弯曲直径对多模光纤激光器输出性能的影响 | |
| 引用本文： | 李立波,楼祺洪,周军,董景星,魏运荣,李进延.弯曲直径对多模光纤激光器输出性能的影响[J].中国激光,2007,34(3):323-326. |
| 作者姓名： | 李立波 楼祺洪 周军 董景星 魏运荣 李进延 |
| 作者单位： | 1. 中国科学院上海光学精密机械研究所,上海,201800;中国科学院研究生院,北京,100039 2. 中国科学院上海光学精密机械研究所,上海,201800 3. 烽火通信科技股份有限公司,湖北,武汉,430079 |
| 基金项目： | 上海市光科技专项基金;中国科学院知识创新工程项目 |
| 摘 要： | 大模场面积(LMA)多模光纤激光器的输出性能与光纤的弯曲程度有关。为研究两者之间的关系,在光纤不同弯曲直径下,对多模光纤激光器的输出性能进行了实验测量和理论计算。采用刀口法测量了不同弯曲直径下的激光光束质量因子M~2,并对每种情况下光纤激光器的斜率效率进行了测量。光纤弯曲直径分别为285 mm, 195 mm和130 mm时,多模光纤激光器光束质量因子M~2为2．88,1．82和1．67,斜率效率为39％,35％和34％。另外,对于实验所采用的大模场面积多模光纤,理论计算了各模式损耗与光纤弯曲直径的关系。 |
| 关 键 词： | 激光技术 光纤激光器 输出性能 刀口法 弯曲直径 大模场面积多模光纤 |
| 文章编号： | 0258-7025（2007）03-0323-04 |
| 收稿时间： | 2006/7/17 |
| 修稿时间： | 2006-07-17 |
Influence of Bending Diameter on the Output Capability of Multimode Fiber Laser |
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| LI Li-bo,LOU Qi-hong,ZHOU Jun,DONG Jing-xing,WEI Yun-rong,LI Jin-yan.Influence of Bending Diameter on the Output Capability of Multimode Fiber Laser[J].Chinese Journal of Lasers,2007,34(3):323-326. | |
| Authors: | LI Li-bo LOU Qi-hong ZHOU Jun DONG Jing-xing WEI Yun-rong LI Jin-yan |
| Affiliation: | 1. Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800, China 2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China 3 FiberHome Telecommunication Technology Co. , Ltd, Wuhan, Hubei 430079, China |
| Abstract: | The output capability of large mode area(LMA)multimode fiber laser depends on the fiber bending.To study the relationship,the output capability of multimode fiber laser is measured under various bending diameters, and it also be calculated theoretically.Beam quality factor M~2 is measured by the means of knife edge for different bending of LMA fiber and the slope efficiency is measured separately.When bending diameters of 285 mm,195 mm and 130 mm are used,the corresponding beam quality factors are 2.88,1.82 and 1.67 with the slope efficiencies of 39%,35% and 34% respectively.For the LMA multimode fiber used in the experiment,losses of different modes are calculated theoretically under various bending diameters. |
| Keywords: | laser technique fiber laser output capability knife edge bending diameter large mode area multimode fiber |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |