Talk:Single-mode optical fiber
"Currently, data rates of up to 10 Gigabits/second are possible at distances of over 60 km with commercially available transceivers"
Surely, we can do better than that? That's the capacity of a single OC-192, and my understanding is that many OC-192s can be run over a single fiber at different wavelengths. From the article on DWDM:
"The first WDM systems combined two signals and appeared around 1985. Modern systems can handle up to 160 signals and can expand a basic 10 Gbit/s fibre system to a theoretical total capacity of over 1.6 Tbit/s over a single fiber pair."