An edge-emitting laser (EEL) is a type of semiconductor laser that emits light in a plane parallel to the junction of the chip. It is an important component in fiber optic cables because it can be used to transmit light signals over long distances. The EEL is used to convert electrical signals into light signals, which are then transmitted through the cable. The laser is usually mounted on a chip and is usually enclosed in a protective housing.
The edge-emitting laser is made up of a variety of components, such as an active layer, a cladding layer, and a waveguide. The active layer is typically made from a semiconductor material and is responsible for emitting laser light. The cladding layer is typically made from an insulating material and helps to reduce the amount of light leakage. The waveguide, which is usually made of glass or plastic, is responsible for guiding the light signal along the length of the cable.
When the electrical signal is sent to the edge-emitting laser, it is converted into a light signal and travels along the waveguide in the cable. As the light signal passes through the cable, the waveguide helps to minimize the amount of light loss. The light signal is then received by the receiver on the other end of the cable, which then converts it back into an electrical signal.
Edge-emitting lasers are important components of fiber optic cables because they enable the transmission of light signals over long distances. They are also durable and reliable, making them well-suited for use in a wide range of applications.