3.A 20 k:z optical fiber link uses fiber with a loss of 0.5 dB km). The fiber is jointed ever kilometer with connectors
Posted: Sun May 15, 2022 2:25 pm
3.A 20 k:z optical fiber link uses fiber with a loss of 0.5 dB km). The fiber is jointed ever kilometer with connectors which give an attenuation of 1 dB each. Deterrine the minimum mean optical power which must be launched into the fiber in order to maintain a mean optical power level of 0.1 pW at the detector (in Watt and dBm).