Discuss the loss in terms of decibels per kilometer

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Reference no: EM13282223

The power in a light beam is proportional to the squareof its electric field, and the electric field for a beam travelingin an attenuating medium can be given by Equation E =Eoe^-αzsin(ωt - kz). The attenuation coefficient in that equation determines the loss. On the other hand, we frequntly discuss the loss in terms ofdecibels per kilometer. => Show that the power change in dB/kmand the attenuation coefficient α are related by γ =-8.685α, where α is given in the unitskm^-1.

Reference no: EM13282223

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