CO_(2)激光退火锗芯光纤COMSOL仿真研究  

COMSOL Simulation of Temperature Field of CO_(2) Laser Annealing Ge Core Fiber

作　　者：王少业 张剑波 赵子文[1,2,3] 杜亦凡 钟双栖 Wang Shaoye;Zhang Jianbo;Zhao Ziwen;Du Yifan;Zhong Shuangqi(Key Laboratory of Specialty Fiber Optics and Optical Access Networks,Shanghai University,Shanghai 200444,China;Joint International Research Laboratory of Specialty Fiber Optics and Advanced/Communication,Shanghai University,Shanghai 200444,China;Shanghai Institute for Advanced Communication and Data Science,Shanghai University,Shanghai 200444,China)

机构地区：[1]上海大学特种光纤与光接入网重点实验室,上海200444 [2]上海大学特种光纤与先进通信国际合作联合实验室,上海200444 [3]上海大学上海先进通信与数据科学研究院,上海200444

出　　处：《激光与光电子学进展》2023年第15期144-151,共8页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(61975114)。

摘　　要：采用COMSOL Multiphysics有限元仿真软件模拟不同功率、不同扫描速度的CO_(2)激光退火锗芯光纤过程中的温度场分布。通过分析激光退火过程中光纤温度场的分布和变化,得到较为适合的激光退火条件。结合退火后锗芯光纤的拉曼光谱测试,发现对于外径和内径分别为190μm和28μm的锗芯光纤而言,在所有退火条件中,2.153 W激光功率、6 mm/s扫描速度能明显改善光纤性能。本仿真研究为优化锗芯光纤特性的实验提供了参考。The temperature field distribution of germanium(Ge)core fiber in the process of CO_(2) laser annealing with different powers and different scanning speeds was simulated by COMSOL Multiphysics.The suitable laser annealing condition was obtained by analyzing the distribution and change of the temperature field in the laser annealing process.Combined with the Raman spectroscopy measurement of the fiber after laser annealing,the laser power of 2.153 W and scanning speed of 6 mm/s were proper for the Ge core fiber annealing when the outer diameter of the fiber was 190μm,the inner diameter of the fiber was 28μm.The simulation of the paper provided a reference for experiments to optimize the properties of Ge core fibers.

关 键 词：光纤光学 锗芯光纤 COMSOL仿真 CO_(2)激光 温度场分布 

分 类 号：TN389[电子电信—物理电子学]