Fiber Optics Video Transmission

Abstract
The transmission of analog video signals is one of the many promising applications of fiber optics technology. With the advent of high power, high radiance GaAlAs double heterostructure light emitting diodes which have adequate linearity, and low loss optical fiber cables the design of point-to-point baseband video bandwidth systems has become straightforward. This paper discusses LED characteristics, including linearity and its effect on differential gain, receiver design and signal to noise ratio, and overall link performance. It is shown that transmission links of up to 2 km at 56 dB S/N are possible without the use of intermediate line amplifiers. The performance of a 10 MHz bandwidth demonstration link containing one line amplifier is better than 0.1 dB differential gain and 0.2ð differential phase at a S/N of 53 dB.