文献类型：会议论文

英文题名：Research on dispersion control technology of thulium-doped fiber laser

作者：Zhang, Ning[1]; Chen, Bingjun[1]; Chen, Ming[1]; Sun, Huijuan[2]; Luo, Yang[3]

第一作者：张宁

通讯作者：Zhang, Ning

机构：[1] Smart City College, Beijing Union University, Beijing, China; [2] Institute of Fundamental and Interdisciplinary Sciences, Beijing Union University, Beijing, China; [3] Institute of Light Wave Technology, Beijing Jiaotong University, Beijing, China

第一机构：北京联合大学智慧城市学院

会议论文集：International Conference on Electronics, Communications and Information Technology, CECIT 2020

会议日期：December 26, 2020 - December 28, 2020

会议地点：Shenzhen, Virtual, China

语种：英文

外文关键词：Adaptive control systems - Fiber amplifiers - Fiber lasers - Fibers - Laser pulses - Rare earth-doped fibers - Rare earths - Single mode fibers - Thulium - Waveguides

摘要：Rare earth doped optical fibers have important applications in fiber lasers, amplifiers and sensors. The Tm-doped fiber laser made with Tm-doped fiber as gain medium can be used in optical communication system. Because the fiber itself has a cylindrical waveguide structure and the core diameter of the fiber is very small, it is easy to achieve high energy density pumping in the fiber. Fiber laser has low laser threshold and good heat dissipation performance, and its core diameter matches well with the communication fiber, forming the integration of transmission fiber and active fiber, which can be an important basis for all-optical communication. However, due to the dispersion of Tm-doped fiber laser, it will lead to the broadening of laser pulse and the degradation of laser quality, which seriously affects the quality of laser communication. In this paper, the causes of dispersion are analyzed, and a dispersion adaptive control system is designed. The experimental results show that the proposed dispersion compensation system can compensate the dispersion produced in the optical fiber laser to a certain extent, so that the laser pulse can return to normal state.This is of great significance for optical communication systems. ? Published under licence by IOP Publishing Ltd.