Recent Achievements in Development of Chalcogenide Optical Fibers for Mid-IR Sensing

Recent results of research passive and active optical waveguides made high-purity chalcogenide glasses for middle infrared fiberoptic evanescent wave spectroscopy liquid gaseous substances are presented. On the basis selenide telluride glass fibers, novel types highly sensitive fiber probes developed. Pr(3+)- Tb(3+)-doped Ga(In)-Ge-As-Se Ga-Ge-Sb-Se 4.2–6 μm wavelength radiation sources created all-fiber sensor systems. Successful testing sensors analysis some mixtures was carried out.