Fiber optic lasers
Fiber Optics lasers are divided into optical fiber nonlinear effect laser, rare earth doped fiber laser, single crystal fiber laser, fiber arc lasers etc. Among them, rare earth doped fiber lasers are very mature, such as doped with low levels of rare-earth halides to make it capable of amplifying light. It was widely used in optical fiber communication systems. High fiber lasers are mostly used in military, laser processing, medical and other fields.
Optics is the branch of physics which involves the behavior and properties of light, including in its interactions with matter and the construction of the instruments that use or detect it. Optics usually describes the behavior of visible, ultraviolet, and infrared lights. Because light is an electromagnetic wave, other forms of the electromagnetic radiation such as X-rays, microwaves, and radio waves exhibit similar properties.