An optical receiver functions as the final component in a fiber-optic link. Its fundamental purpose is to capture the light signal transmitted through the fiber and accurately translate it back into a usable electrical data stream. This can lead to errors in the interpretation of the received signal. The approach taken will be to present the material in a straightforward. In CATV over FTTH applications, an optical receiver is a home-based optical termination device that converts optical TV signals into electrical RF signals for analog or digital TV access.