Magnetic Bubble Optical Matrix Switch

Abstract

The authors have devised a current-access optical matrix switch employing a bubble which has two rest positions within a well dugout on a magnetic garnet film. Satisfactory agreement was found between theory and experiment on the rest positions, determined by the demagnetizing field in the well. Various matrix configurations for driving bubbles have been examined by using a scaled-up model. Discussions are given of the characteristics evaluation in order to achieve an optimum access method.