复合光纤界面残余应力研究进展OA

During the the fabrication of optical fibers,differences in the material parameters between the core and cladding,as well as process factors such as cooling rate and drawing speed,lead to the generation of interfacial residual stress,which significantly affects the optical performance and service life of optical fibers.This paper focuses on the issue of interfacial residual stress in optical fibers,systematically reviews recent research progress on the formation mechanisms and effects of frozen-in residual stress,thermally induced residual stress,and mechanically induced residual stress,achieved through methods such as theoretical analysis,numerical simulation,and physical modeling.Furthermore,characterization techniques for interfacial residual stress,including photoelastic method,micro-Raman spectroscopy,and Brillouin scattering method,are summarized and discussed.The aim is to provide a reference for the preparation of high-performance optical fibers and the precise control and characterization of interfacial residual stress.