A fiber optic transmitter is a hybrid device. It converts electrical signals into optical signals and launches the optical signals into an optical fiber. A fiber optic transmitter consists of an interface circuit, a source drive circuit, and an optical source. The interface circuit accepts the incoming electrical signal and processes it to make it compatible with the source drive circuit. The source drive circuit intensity modulates the optical source by varying the current through the source.
Light emitted by an optical source is launched, or coupled, into an optical fiber for transmission.
This chapter attempts to provide an understanding of light-generating mechanisms within the main types of optical sources used in fiber optics. Integrated Publishing's Official Web Page Click here for a current index of everything on this web site. All Rights Reserved.