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17 November 2016 Optical waveguide materials, structures, and dispersion modulation
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Optical waveguide is used in most integrated optic devices to confine and guide light in higher refractive index channels. The structures and materials of slot waveguides are reviewed in this paper. Coupled resonator optical waveguides (CROWs) can be used for a rotation sensor with compact size, low power consumption and low cost. The loss determines the ultimate sensitivity of CROW gyros. Resonator-based optical gyroscope’s sensitivity for measuring rotation is enhanced via using the anomalous dispersion characteristic of superluminal light propagation, which can be also generated by using passive optical resonators.
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Hao Zhang, Jiaming Liu, Jian Lin, Wenxiu Li, Xia Xue, Anping Huang, and Zhisong Xiao "Optical waveguide materials, structures, and dispersion modulation", Proc. SPIE 10027, Nanophotonics and Micro/Nano Optics III, 100270D (17 November 2016);

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