Abstract
A switching-control algorithm is necessary in order to connect the optical paths between input and output ports by using MEMS mirrors in a free-space optical system. We propose a new search algorithm that finds the maximum optical power by using the motion control technique of MEMS mirrors. We apply the algorithm to peak search control for optical path connection with maximum optical power and to the optical power stabilization control in the case of environment changes, such as temperature change. The results confirm that the algorithm is suitable for practical use.
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