The splicer measures light coupling through fiber while moving fibers on actuators to get best transmission which means the fibers are optimally aligned. The LID system also checks transmission after splicing to estimate splice loss. Both techniques work well with most fibers. Light is coupled into the fiber by bending the fiber and shining a light source (LED or laser) on the outside of one fiber, so some light is coupled into the core. On the other fiber, the bend causes macrobending losses that are measured by a photodetector, providing a relative indication of light. Regardless of your level of experience, creating high-quality, high-performance fiber optic networks requires developing your skills in fusion splicing. This guide reveals the secrets to fusion splicing with little fluff—just proven, straightforward techniques refined from years of work in the. Splicing fiber optic cable is an extremely important phase for making dependable, high-speed communication infrastructures. In fact, fiber optic data links are often of a more complex design than point-to-point. This virtual hands-on page will take you through the steps involved in the process. Look at the slide graphics and then read the notes below. If you have your own equipment, do the recommended exercises.