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12 November 2014 Confocal ring cavity as micro-optical gyro element
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Passive ring cavities are now treated as the most promising sensitive elements for cheap and technologically simple microoptical gyro for mass production. Usually the single-mode planar waveguides are considered to be the only possible technology for such devices implementation. However, our analysis shows that in some cases the confocal ring cavity, characterized by degeneration of transverse modes, can be the better alternative for such a device technology. The paper considers possible advantages and disadvantages of such an approach, its limitations and technology prospects.
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Yuri V. Filatov, Alexander A. Sevryugin, Egor V. Shalymov, and Vladimir Yu. Venediktov "Confocal ring cavity as micro-optical gyro element", Proc. SPIE 9274, Advanced Sensor Systems and Applications VI, 927416 (12 November 2014);

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