Fiber optic transceivers are very important and common stuff that widely used in telecommunication systems for both conversion and transmission functions. Receiving the basic knowledge about the optical transceiver modules is an important first step for those who plan to go depth into the fiber optic communication industrial. This column on optical transceiver module would start with the fiber optic transceiver structure, which would help you easily understand the fiber optic transceiver working principle, its types and even facilitate you choosing the correct target transceiver modules for use in the feature.

A fiber optic transceiver consists of a transmitter on one end of a fiber and a receiver on the other end. It is also called fiber optic transmitter and receiver. It transmits on one direction on one fiber and on another fiber in the reverse direction.

In the optical transceiver module, there includes both transmission and receiver inside. The work process is: The transmitter takes in an electrical signal and then converted it into an optical one with the light source device like a laser diode or LED. The light converted from the transmitter is then coupled into the fiber with a connector and is transmitted through the fiber cable plant outside. The light from the end of the fiber is coupled to a receiver in which a detector converts the light into an electrical signal and finally adopted by the receiver equipment.

Fiber Optic Transmitters
LEDs, fabry-perot (FP) lasers, distributed feedback (DFB) lasers and vertical cavity surface-emitting lasers (VCSELs) are the 4 types of source for the transmitters that can convert the electrical signals into optical signals. They are al tiny semiconductor chips.