An optical fiber laser or amplifier comprising an optical fiber and a pump radiation source configured to generate pump radiation which is received through an input end of the optical fiber. The method may also include producing a compensated image based on an average of the first and second images. A plan is then developed for the client based on survey data from the service provider representative survey to address at least one aspect of the provided service requires changing. The oxide insulating layer which covers the peripheral portion of the oxide semiconductor layer is provided to increase the distance between the gate electrode layer and a wiring layer formed above or in the periphery of the gate electrode layer, whereby parasitic capacitance is reduced.