102 km optical fibre transmission experiments at 1.52 μm using an external cavity controlled laser transmitter module

Abstract

The operation of a 1.52 μm external cavity controlled laser transmitter module over 102 km of monomode fibre at 140 Mbit/s is reported. The laser emission is restricted to a single longitudinal mode by the external cavity, resulting in a system penalty of less than 0.5 dB.