Since 2015 coherent pluggable modules have been available in CFP MSA form-factor that specifies the power consumption to be less than 24W.
Along with the insertion loss, reflection and scattering of signal also occur along fiber that contributes to a degradation of the signal.
Opatija, Croatia, 27. - 29. January 2016
Fiber optic cable is known for its very low attenuation (0.2dB/km) and wide bandwidth which allows for tremendous capacity enabled fiber links to span across oceans.