Data communication systems are increasingly employing optical fiber communication systems (OFCS) as the transmission path for information. A fiber laser is basically a laser where the active output medium is an optic fiber doped electrically with rare-earth elements like neodymium or erbium. They are very similar to photodiodes but used on a much larger scale. These devices operate at high power because they use excitation of high energy states in a matter that is not in its ordinary state. The excitation happens via the insertion of a thin optical fiber into the optical path. When this is done, it causes waves to be generated in the fibers and these waves are picked up by the lens. These waves are then amplified by the exciton chamber thereby giving rise to high-power output. The device is usually a vacuum tube system, which has been charged with a high voltage.
Ytterbium-Doped Fiber Laser: It is generally used in structural engraving applications where a flat surface is to be engraved, and it is commonly used as a replacement for a diamond in diamond cutting machines. It is made from Ytterbium metallic halide crystals and is extremely stable under normal circumstances. This makes it highly suitable for materials like steel and titanium, which tend to be more sensitive to shock. The crystals emit high-frequency light and create high concentrations of ultraviolet (UV) radiation, which is required for triggering the photoelectric effect. This makes Ytterbium-Doped Fiber Laser a good choice for cutting various materials like brass, aluminum, wood, granite, and steel, and fiberglass.
Highly thulium-doped silicate glass fibers can be used to develop single-frequency fiber lasers with 1.9–2.1 μm operating wavelengths, and Q-switched fiber lasers, and self-starting passively modelocked fiber lasers of up to 10 kW peak power. Erbium-doped fibers provide the basic building blocks for fiber optic amplifiers more specifically Erbium-Doped Fiber Amplifiers (EDFAs) used in broadband. These lasers are widely tunable, narrow linewidth, and single frequency... Raed more