Advances in Long Wavelength Semiconductor Lasers for Fiberoptic Communication
10 October 1988
Lasers emitting near 1.3 and 1.55microns, fabricated using the InGaAsP material system are widely used in many commercial lightwave transmission systems. The information carrying capacity of a transmission system is proportional to the data rate and the desire towards higher data rates is motivated by lower transmission cost per bit of information. Systems operating at 1.7 Gb/s are now commercially available and are being used to carry voice and data. Laboratory experiments have demonstrated error free transmission over 76 km of fiber at 8 Gb/s.