Transmission of Eight 20 Gb/sec Channels over 232 km of Conventional Single-Mode Fiber

Installed telecommunication lightwave systems are now being upgraded with erbium-doped-fiber-amplifier (EDFA) optical repeaters. Less expensive than full regenerators which receive, reshape, and re-transmit the optical signal, the EDFAs also allow future capacity increases through the use of wavelength-division multiplexing. These amplifiers operate at approximately 1555 nm, where the loss of conventional step-index fiber, used in almost all installed systems, is a low 0.2 dB/km.

Access to the full text of this article is restricted. In order to view this article please log in.


Add a Comment

comments powered by Disqus