Characteristics of pulse-width modulation (PWM) were studied to provide an analog communication alternative to the predominantly digital techniques presently used in fiber optic links. Large analog signal dynamic range and high SNR, coupled with freedom from intermodulation, make PWM attractive for broadband local area network (LAN) applications, including future information-oriented offices and hospitals and automated factory floors. A simple video link was constructed using common laboratory equipment. The performance of the video link supports the PWM theory developed here and elsewhere. Analog transmission capability was experimentally demonstrated. SNR was limited only by the carrier noise, and no evidence of the intermodulation problem was observed.