Analytical modelling of Tm-doped tellurite glass including cross-relaxation process

Compact broadband amplified spontaneous emission in Tm-doped tungsten tellurite glass double-cladding single-mode fiber

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...

Energy transfer and energy level decay processes in Tm 3 1 - doped tellurite glass

Optical Properties of Ho3+ Doped in Tellurite Glass

We visit the standard procedure for analyzing the optical spectrum of Ho doped tellurite glass has been studied. The glass was formed using a composition 79% Te O2 + 20% Li2 CO2 + 1% Ho O2. I density and refractive index were measured and used to calculate various physical properties such as, rare earth concentration, mean atomic volume, electric polarization, ionic radius, molar refractivity, ...

Blue upconversion enhancement by a factor of 200 in Tm 3+ -doped tellurite glass by codoping with Nd 3+ ions

Novel Calculation for Cross-Relaxation Energy Transfer Parameter Applied on Thulium Highly-Doped Tellurite Glasses

We investigate the cross relaxation parameter of Tm3+ ions in tellurite glasses over a wide range of concentrations: from 0.36 mol% up to 10 mol%. We propose a new measurement approach based on monitoring the steady-state emission spectra. The proposed method is very simple and allows to measure even very highly doped samples. The crossrelaxation parameter shows a linear dependence with respect...