An optical amplification device includes: an optical module that outputs an amplified light; and a controller that makes the optical module emit a light when an emission command is input into the controller, wherein the controller cancels an inputting of the emission command until a predetermined time passes, when a protection for forbidding a light emission of the optical module is canceled. Users can advance in the call flow based on any response other than one or more alternative valid responses for the one intended step that lead in the call flow to one or more alternative steps to the one intended step because every action in the call flow motivates the user to follow the predetermined ordering. One or more privileged applications are designated and allowed to affect the priority structure, including requesting a new in-focus application to be placed atop the priority structure.