Total Fiber Loss = Fiber Length × Attenuation Coefficient Total Connector Loss = Number of Connectors × Loss per Connector Total Splice Loss = Number of Splices × Loss per Splice Total Link Loss = Fiber Loss + Connector Loss + Splice Loss + Splitter Loss + Safety Margin + . Total Fiber Loss = Fiber Length × Attenuation Coefficient Total Connector Loss = Number of Connectors × Loss per Connector Total Splice Loss = Number of Splices × Loss per Splice Total Link Loss = Fiber Loss + Connector Loss + Splice Loss + Splitter Loss + Safety Margin + . Power Budgets And Loss Budgets The terms "power budget" and "loss budget" are often confused. The power budget refers to the amount of fiber optic cable plant loss that a datalink (transmitter to receiver) can tolerate in order to operate properly. After entering your values, please ensure you click the 'Calculate Link Loss' button at the bottom of the page to generate your total link loss. Fiber attenuation is the reduction in optical power as light travels through the fiber. It depends on. Fibre optic loss can be broken down into intrinsic (within the fibre itself) and extrinsic (external factors or components).