A fiber optical switch, also known as a fiber channel switch or a SAN (Storage Area Network) switch, is a high-speed network transmission relay device. Fiber-optic switches control light paths within fiber optics, ranging from simple on/off types to complex matrix configurations like 64×64. They are used in a wide range of applications, including telecommunications, data centers, industrial automation, and military and aerospace. It automates the connection from the incoming optical fiber to selected output optical fibers and hence eliminates the. Fiber optic switches route an optical signal without electro-optical and opto-electrical conversions. The fiber has a very small core diameter of approximately 8. Optical fiber switches are devices that enable data transfer between servers by connecting them through fiber optic cables.