A critical challenge in the fabrication of chalcogenide-glass infrared optical fibers is the need for first producing large volumes of highpurity glass – a formidable task, particularly in the case of multicomponent glasses. We describe here a procedure based on multimaterial coextrusion of a hybrid glass-polymer preform from which extended lengths of robust infrared fibers are readily drawn. O...

Er(3+) doped oxyfluoride tellurite glasses have been prepared. Three Judd-Ofelt parameters Ωt (t=2, 4, 6) and radiative properties are calculated for prepared glasses. Emission characteristics are analyzed and it is found that prepared glasses possess larger calculated predicted spontaneous transition probability (39.97 s(-1)), emission cross section σem (10.18 × 10(-21)cm(2)) and σem × Δλeff (...

We reported the ~2 μm amplified spontaneous emission (ASE) performance of highly Tm-doped (3.76 × 10 ions/cm) tungsten tellurite single-mode fibers. The double-cladding fiber was pumped by a commercial 792 nm laser diode without any reflectors. Broadband ASE spectra with the bandwidth (FWHM) varying from ~45 nm to ~140 nm were achieved in a fiber length of 34 cm. The maximum output power was ~3...

A flat 2.0 ?m ultra broadband emission with a full width at half maximum (FWHM) of 329 nm is achieved in 1 mol.% Tm2O3 and 0.05 Ho2O3 co-doped gallium tellurite glasses upon the excitation an 808 laser diode. The influence Tm3+ Ho3+ contents on spectroscopic properties minutely investigated by absorption spectra, lifetime measurement. In addition, cross section gain coefficient ions are calcula...

We present the behavioral changes and symmetrical enhancement on KERMA, mass stopping power projected range parameters against heavy-charged particles through Indium (In) Tantalum (Ta) incorporations for various zinc-tellurite glass groups such as TZI ZTT nuclear applications. SRIM PAGEX codes are utilized determination of investigated attenuation alpha proton particles. In KERMA calculations, ...

High nonlinearity and transparency in the 1–5 μm spectral range make tellurite glass fibers highly interesting for development of nonlinear optical devices. For fibers, group velocity dispersion that can be controlled by microstructuring is also great importance. In this work, we present a comprehensive numerical analysis properties microstructured two-, four-, six-, eight-core in-phase out-of-...