BLACKHEAD: Já bych to úplně nezatracoval a jak jsem si myslel a podle tohoto? :)
In 1977, the first live telephone traffic through fiber optics happens in Long Beach, California.
In the early 1980s, telephone companies started to use fiber optics to rebuild their communication infrastructure.
In 1986, Emmanuel Desurvire invented the erbium-doped amplifier which reduced the cost of long-distance fiber systems.
In 1988, the first transatlantic telephone cable went into operation.
In 1991, Desurvire and Payne demonstrate amplifiers were built into the fiber optic cable itself. Also in 1991, the photonic crystal fiber was developed.