Active Optical NetworkPassive Optical Network
Typically lower cost up front, costs are roughly linearCosts increase very slowly after high up front cost
Cover longer distances (tens of km)Cover shorter distance (< 10 km)
Each strand connects 1:1 between 2 devicesEach strand can feed up to 128 devices with passive splitters
Less sensitive to signal attenuation (light loss)
Far more sensitive to signal attentuation (light loss) since signals are split to feed multiple devices