It is a technique that uses controlled heat to permanently fuse two optical fiber ends together. Unlike mechanical splicing, which relies on alignment sleeves and index-matching gel, this thermal approach creates a continuous glass path between fibers. Optical fiber technology is rapidly evolving. New fiber designs are taking over, such as multicore, hollow-core, ultra-thin, or tapered fibers. They offer lower latency, higher capacity and transmission, and unlock new possibilities in telecommunications, industrial lasers, and photonics. But these. Thus, the conjugation of high power propagation and tight bending, resulting from the actual FTTH infrastructures, is responsible for fibre lifetime reduction, mainly caused by the local increase of the coating temperature. In deserts, splicing crews have reported needing to cool down machines in ice chests to prevent overheating. When subsea fiber cables are damaged – whether by. One notable shift is the move from 12-fiber to 16-fiber ribbon cables, enabled by designs such as AFL's SpiderWeb Ribbon™ (SWR™). With a flexible 200-µm fiber pitch, SWR™ supports higher-density splicing while remaining practical to handle, ideal for mass fusion splicing platforms like the Fujikura. This paper presents an innovative approach to modelling the fiber optic fusion effect using the Network Simulation Method (NSM). An analogy between the heat conduction equations and electrical circuits is developed, allowing a complex physical problem to be transformed into an equivalent electrical.