COMSOL Simulation of Temperature Field of CO2 Laser Annealing Ge Core Fiber

Shaoye Wang; Jianbo Zhang; Ziwen Zhao; Yifan Du; Shuangqi Zhong

doi:10.3788/LOP221828

Journals >Laser & Optoelectronics Progress >Volume 60 >Issue 15 >Page 1506005 > Article

Laser & Optoelectronics Progress
Vol. 60, Issue 15, 1506005 (2023)

COMSOL Simulation of Temperature Field of CO₂ Laser Annealing Ge Core Fiber

Shaoye Wang^1,2,3, Jianbo Zhang^1,2,3, Ziwen Zhao^1,2,3,*, Yifan Du^1,2,3, and Shuangqi Zhong^1,2,3

Author Affiliations

¹Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200444, China

²Joint International Research Laboratory of Specialty Fiber Optics and Advanced; Communication, Shanghai University, Shanghai 200444, China

³Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai 200444, China

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DOI: 10.3788/LOP221828 Cite this Article Set citation alerts

Shaoye Wang, Jianbo Zhang, Ziwen Zhao, Yifan Du, Shuangqi Zhong. COMSOL Simulation of Temperature Field of CO₂ Laser Annealing Ge Core Fiber[J]. Laser & Optoelectronics Progress, 2023, 60(15): 1506005 Copy Citation Text

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Abstract

The temperature field distribution of germanium (Ge) core fiber in the process of CO₂ 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 190 μm, the inner diameter of the fiber was 28 μm. The simulation of the paper provided a reference for experiments to optimize the properties of Ge core fibers.

Keywords

CO2 laser COMSOL simulation fiber optics Ge core fiber temperature field distribution