Fusion splicing provides a low-loss, highly reliable connection by melting and fusing fiber ends, making it ideal for long-haul applications, whereas fiber mechanical splicing offers a quick and practical solution for field repairs and temporary connections by using a junction to. Fusion splicing provides a low-loss, highly reliable connection by melting and fusing fiber ends, making it ideal for long-haul applications, whereas fiber mechanical splicing offers a quick and practical solution for field repairs and temporary connections by using a junction to. It's the process of joining two fiber optic cables using techniques such as fusion splicing and mechanical splicing, crucial for maintaining uninterrupted communication networks. In this guide, we'll explore what splicing of fiber entails, why it's important, and dive into the key methods and tools. In this guide, we cover the basics of fiber optic splicing, how to perform splicing using two different methods, and finally some best practices to perform good fiber splicing. What is Fiber Optic Splicing and Why is it Needed? – #1. Use and Maintain Your. Splice modules Fiber optic installation is the heart of any professional fiber optic infrastructure. They protect and organize the sensitive connection points between optical fibres and play a decisive role in the quality, reliability and ease of maintenance of the entire network.