This loss is primarily quantified as insertion loss, which measures the reduction in signal power due to the splitter's presence in the optical path. Factors influencing splitter loss include splitter type, splitter numbers, and component quality. If you use a 1×8 splitter with ~10. 5 dB of insertion loss, the power at each output would be: 0 dBm – 10. Calculation of additional loss 3. The optical network system uses an optical signal coupled to the branch distribution. The fiber optic splitter is one of the most important passive. To be able to judge whether a fiber optic cable plant is good, one does a insertion loss test with a light source and power meter and compares that to an estimate of what is a reasonable loss for that cable plant. The estimate, called a "loss budget" is calculated using typical component losses for. Fused couplers are used to split optical signals between two (or more) fibers or to combine optical signals from two (or more) fibers into one fiber.
[PDF Version]