Physics of Semiconductor Devices

Optical communication

Describe an optical communication link using an optical fiber.

(a) What semiconductor devices could be used as the transmitter? What semiconductors would be used to build transmitters?

(b) What are optical fibers made of? How does an optical fiber keep the light inside? What determines how long the optical fiber can be?

(c) How is the signal detected at the receiver? Describe how the receiver works.