Thermal welding of optical fibers consists in bringing the ends of the conductor to melting using a fiber optic splicer, and more specifically - located inside the electrodes. The welded ends are then pressed and a weld is formed. An Optical Fiber Bragg Grating (FBG) is a periodic modulation of the refractive index within the core of an optical fiber. This technology is used in industries such as laser technology, optics, sometimes even to create decorations! However, the most important area that. This SPIE Tutorial Text excerpt discusses the usefulness and versatlity of fiber Bragg gratings. It provides an expert-curated supplier directory, buyer-focused technical background information, and structured selection criteria to support professional procurement decisions. It uses special parts that are prepared in advance to connect the two ends. The most work is waiting for installers, whose tasks can be divided into several stages: In this part, we will deal with the second stage, i.