24 October 2014 Wave guiding by low refractive-index strips on surfaces of Chalcogenide glass thin films
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Abstract
In this paper, we proposed and demonstrated a simple ChG waveguide structure, guided by low refractive-index strips on the surfaces of planar ChG films. Theoretical analysis shows that it supports quasi-TE mode transmission in 1.5μm band with high nonlinearity. Samples of this surface guiding ChG waveguides are fabricated. Its transmission properties are measured by the cut-off method, showing a waveguide attenuation of 0.67dB/mm and a coupling loss with optical fibers of ~8dB/facet. It provides a simple way to realize high quality ChG waveguides, which has great potential in developing nonlinear photonic devices.
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Yanfen Zhai, Yanfen Zhai, Wei Zhang, Wei Zhang, Yidong Huang, Yidong Huang, "Wave guiding by low refractive-index strips on surfaces of Chalcogenide glass thin films", Proc. SPIE 9270, Optoelectronic Devices and Integration V, 92700X (24 October 2014); doi: 10.1117/12.2071662; https://doi.org/10.1117/12.2071662
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