In today's ever-changing digital landscape, Fiber optic cables play a vital role in transmitting large amounts of data over long distances with minimal loss. Among the different types of optical fibers available, G.652D has established itself as one of the most popular solutions due to its excellent performance in various network environments. However, there are other types of fibers used in telecommunications, like G.655 fibers, G.657 and G.653. Understanding the differences between these fibers is crucial to making informed choices when planning and designing networks..