Abstract

The focus of optical-amplifier research in recent years has been on the second (low dispersion) and third (low loss) telecommunications windows at 1300 nm (Nd3⁺ - and Pr³⁺ -doped fluorozirconate fibers) and 1550 nm (Er³⁺:silica), respectively. Nonetheless, an efficient amplifier in the (historically) first window at 800-875 nm is of considerable interest for short-haul applications such as local area networks because of the low cost of transmitters, detectors, and multimode polymer optical fiber in this window.

© 1994 Optical Society of America