多模式耦合非线性光纤光学

新型超快光纤激光器

激光医疗应用

项目聚焦于非线性光束自保持这一新颖的多模非线性效应。拟通过基于大规模并行算法的数值模型，在高、低功率条件下均考虑线性微扰引起的模式耦合，解构非线性光束自保持效应的物理本质。通过构建不同高阶模式占主导的高功率脉冲激光器作为输入光源，探究不同高阶模式占主导、不同功率条件下，激光在渐变折射率多模光纤中传输产生的现象，从而直接证明多模光纤中非线性光束自保持效应的普适存在。通过数值模拟和传输实验详细研究非线性光束自保持效应的产生条件以及该效应对传输激光特性的影响，从而明晰该效应的物理机理。项目将拓展人们对光纤激光系统中多模非线性效应及其产生机理的认识，推动多模激光系统在通信系统、传感成像和激光加工方面的应用。

1. Zhang Baofu, Ma Shanchao, Lu Sihua, He Qiurun, Guo Jing, Jiao Zhongxing*, and Wang Biao “All-fiber mode-locked ytterbium-doped fiber laser with a saturable absorber based on the nonlinear Kerr beam cleanup effect”, Optics Letters, 2020, 45(21): 6050-6053.

2. Zhang Baofu, Ma Shanchao, He Qiurun, Guo Jing, Jiao Zhongxing*, and Wang Biao*, “Investigation on saturable absorbers based on nonlinear Kerr beam cleanup effect”, Optics Express, 2020, 28(5): 6367-6377.

3. Zhang Baofu, Zheng Xionghua, Guo Jing, Jiao, Jiao Zhongxing*, and Wang Biao*, “Investigation of the reabsorption effect in an all-fiberized mode-locked thulium-doped fibre laser”, Laser Physics, 2019, 29(4): 045104-045104.

4. Zhang Baofu, He Guangyuan, Jiao Zhongxing*, and Wang Biao*, “Efficient theoretical model and numerical simulation for optimization of gain-switched thulium-doped fiber lasers”, APPLIED PHYSICS B-LASERS AND OPTICS, 2016, 122(3): 62.

5. Zhang Baofu, Cao Dingxiang, Jiao Zhongxing*, and Wang Biao*, “All-fiberized polarized mode-locked thulium-doped fibre laser”, LASER PHYSICS LETTERS, 2015, 12(1): 015102.

材料结构缺陷与性能、发光材料与显示技术

指导学生竞赛获奖第十五届“挑战杯”广东大学生课外学术科技作品竞赛，三等奖