5.3 GHz modulation passband for fiber lengths up to 100 km using a directly modulated passive feedback laser

The chirp and bandwidth tuneability of a passive feedback laser are used to obtain a modulation passband that is void of power fading dips and allows the transmission of 21.418 Gbit/s and 10.709 Gbit/s SCM signals over 61 km and 102 km of SMF, respectively.