摘要
对模式选择耦合器、声致光纤光栅等全光纤模式转换器件的工作原理进行总结,并结合锁模光纤激光器和模式转换器件的优势,简单高效地产生了超快矢量光束和涡旋光束,得到的超快高阶模式激光具有峰值功率高、模式纯度高等特点。实验证明了模式转换器件的快速响应特性和宽带模式转换特性,并指出了其未来的发展方向和应用前景。
This paper summarizes the working principles of all-fiber mode converters such as mode selective couplers and acoustically-induced fiber gratings. Combining the advantages of a mode-locked fiber laser and mode converters is a simple and effective method to generate ultrafast vector beams and optical vortex beams. The generated ultrafast laser with high-order modes(HOMs) has high peak powers and high mode purity. The experimental results demonstrate that the fast response and broadband mode conversion characteristics of these mode converters. In addition, the future development directions and application prospects of ultrafast HOMs are discussed.
作者
王腾
陆佳峰
黄译平
孟令浩
石帆
曾祥龙
Wang Teng;Lu Jiafeng;Huang Yiping;Meng Linghao;Shi Fan;Zeng Xianglong(Key Laboratory of Specialty Fiber Optics and Optical Access Networks , Joint International Research Laboratory ofSpecialty Fiber Optics and Advanced Communication , Shanghai Institute for Advanced Com m unicationand Data Science, Shanghai University , Shanghai 200444, China)
出处
《中国激光》
EI
CAS
CSCD
北大核心
2019年第5期111-125,共15页
Chinese Journal of Lasers
基金
国家自然科学基金(91750108)
上海市国际科技合作基金项目(16520720900)
关键词
光纤激光器
超快光学
高阶模式
模式选择耦合器
声致光纤光栅
fiber lasers
ultrafast optics
high-order mode(HOM)
mode selective coupler
acoustically-induced fiber grating
