Optical switch is a vital part in the fiber optic systems to perform ON/OFF operations or reroute a fiber optic signal. All kinds of telecommunication network need switches, so is the fiber optic network.fiber switch is a vital part in the fiber optic systems to perform ON/OFF operations or reroute a fiber optic signal. Our optical switch include simple 1XN type to complicated MXN type.1XN fiber optical switch control the input signal to go via any of the N ports output. The 2X2 optical switches are used for node by passing in fiber optic systems like in FDDI networks. MXN optical switch matrix or arrays could be found to use in WDM systems, they are combination of the simple models switches in multistage structure.