An optical splitter, also called a fiber optic coupler, splits an optical signal into multiple parts. It's a simple but effective way to distribute one input signal to various outputs without losing signal quality. Their ability to efficiently manage optical signals makes them indispensable in various. A fiber-optic splitter, also known as a beam splitter, is based on a quartz substrate of an integrated waveguide optical power distribution device, similar to a coaxial cable transmission system. Specifically, it functions as a power distribution device, capable of splitting an incident light beam into two or more beams, and vice versa. It can divide the input optical signal into multiple output optical signals to meet the fiber optic access needs of multiple terminal devices.