Elena B Kryukova

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Main error sources and their contribution to the total error of measuring the optical loss spectrum by the cut-back method are analyzed in the mid-IR range (2-20 μm) for multimode optical fibers made from materials with high (2-4) refractive index values. It is shown that in case of insufficient fiber length, neglecting the refractive index value leads to a(More)
Tellurite glasses of (TeO2)0.8(WO3)0.2 and (TeO2)0.7(WO3)0.2(La2O3)0.1 are produced by melting mixtures of respective oxides. Some properties of produced glasses essential for application in fiber optics are investigated. The best glass samples contain 0.5 – 1.0 ppm of OH groups, no more than 0.5 ppm wt. of transition metal impurities, less than 5×10 cm of(More)
We performed precise measurement of the refractive index of stable silicon isotopes 28Si, 29Si, and 30Si single crystals with enrichments above 99.9 at.% and a silicon single-crystal natSi of natural isotopic composition with the Fourier-transform interference refractometry method from 1.06 to more than 80 μm with 0.1 cm(-1) resolution and accuracy of(More)
Precise measurement of the refractive index of chemical vapor deposition (CVD) ZnSe with the Fourier-transform interference refractometry method from 0.9 to 21.7microm (from 11,000 to 460cm(-1)) with 0.1cm(-1) resolution is described. For this measurement, structurally homogeneous ZnSe plates were grown on a substrate with an optimized temperature increase.(More)
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