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. 2016 Jan 25;7(2):18. doi: 10.3390/mi7020018

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© 2016 by the author.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).

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Principle of 1 × 2 and 2 × 2 optical switch [5,89] using a sliding flat mirror as coupler between fixed waveguides.