68.3 km transmission with 1.37 Terebit-km/s capacity using wave-length division multiplexing of 10 single frequency lasers at 1.5 microns.
01 January 1985
We describe the first single fiber lightwave transmission system with more than 1 Terabit-km/s capacity. The ultra high capacity transmission over 68.3 km of low loss single mode fiber was achieved by closely spaced wavelength division multiplexing of 10 distributed feedback lasers. The lasers operated around 1.5micron wavelength and the multiplexer channel spacing was 1.35 nm. Each laser/channel was modulated at 2 Gbit/s giving a total transmission capacity of 1.366 Terabit-km/s.