We know that these days fiber optic couplers/splitters are indispensable to the operation of modern telecommunication systems. As the name suggests, they work by either splitting a light signal into two separate signals flowing down different fibers of optic ­cable or alternatively combining at least one new channel into an existing traffic stream while still using wavelength division multiplexing techniques for long-distance transmission. These devices simultaneously divide incoming signals into numerous outputs and then merge multiple series of input data into one terminal, all of this accomplished without any appreciable loss in signal quality. When processing signals, diagonal couplers/minister are precisely crafted to ensure the strength and integrity of the signals remain intact. They operate over a wide wavelength range (from 500 to 1600 nm) and can accept either single-mode or multisequencing fibers. They are used for improvements to the systems where they are deployed throughout the chain of telecommunication networks, in fiber-to-the-home installations, data centers, and more moderately revenue generating cable television, among other applications.