Controlling apparatus and controlling method for spatial optical switch

摘要

A controlling apparatus (5) for a spatial optical switch having a deflecting means (2) which has two or more deflection axes, and controls deflection angles around deflection axes to deflect an optical path of an input light beam from any one of a plurality of input ports between the plural input ports and a plurality of output ports, and outputs the input light beam to any one of the plural output ports. The controlling apparatus (5) comprises an optical detecting means (6) for detecting an output optical level from the output port in order to control the output optical level of the spatial optical switch at a high resolution, and a controlling means (7) for controlling the output optical level detected by the optical detecting means (6) to a desired output optical level by controlling a deflection angle around one deflection axis of the deflection means (2), then controlling a deflection angle about another deflection axis of the deflecting means (2).