Theoretical Mechanical Analysis of the Optical Fiber Side-Polishing Process

This PDF document presents a theoretical mechanical analysis of optical fiber side-polishing using free-body diagrams, force equilibrium, Newton’s laws, and Preston’s equation. The analysis examines the relationship between fiber tension forces, geometric configuration, and the normal reaction force generated during polishing. Based on the derived force equilibrium, a theoretical expression is developed to relate the volumetric material-removal rate to the mechanical conditions of the polishing process and relative surface speed. This document provides a fundamental understanding of the mechanical factors influencing optical fiber side-polishing and establishes a theoretical foundation for further investigation and optimization of the polishing system. Key topics covered: -Free-body diagram analysis of the optical fiber -Mechanical force equilibrium during pre-polishing and polishing -Relationship between fiber tension, geometric configuration, and normal reaction force -Application of Preston’s equation to derive the theoretical material-removal rate Intended audience: Students, researchers, and engineers interested in optical fiber fabrication, polishing systems, and theoretical mechanical analysis. This document complements the free 'Operating Manual for an Optical Fiber Side-Polishing System Using a Dremel 3000 Rotary Tool and Aluminium Oxide Grinding Stone', which provides practical reference information on operating the polishing system.