Modeling and analysis of the fusion strength of single-mode optical fiber in the high altitude environment

Abstract

Up to date, there has been no complete theoretical research and no field experimental reports on the fiber fusion strength in high altitude environments. Therefore, we have conducted an exploratory study on the fiber fusion strength at high altitudes, and firstly analyzed the crack growth characteristics of splicing points, and then considered the influence of fusion variables and parameters on fusion strength. A mathematical model to improve the fiber fusion strength in high altitude environment is established by pondering over the joint effect of temperature, humidity, oxygen content, atmospheric pressure, high wind and gravity. Furthermore, we have implemented multiple field fusion experiments in different altitude areas (53, 2980, 4000, 4200, 4300, 5020 and 5200m). The simulation results are basically consistent with the theoretical analysis. Ultimately, the method proposed has been directly used in the splicing projects at high altitudes, achieving good results.