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A new type of single-mode four-port electro-optic switch is investigated. The operation principle is based on the electrically controlled two-mode interference in the intersection region of two crossing single-mode channel waveguides. The switch is analysed numerically by the beam-propagation method, and is realised experimentally by using Ti:LiNbO3 channel waveguides.
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http://iet.metastore.ingenta.com/content/journals/10.1049/el_19830375
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