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, field strength, reflection losses and dielectric constant etc. The absorption spectra of glass have been recoded in the 340 – 2000 nm and fluorescence in the 400 – 710 nm. region. The spectral lines were used to get the energy levels of Ho in tellurite glass. We have also calculated the oscillator strength, Judd-Ofelt intensity parameters, transition probability; branching ration stimulated emission cross section etc. utilizing these special data. It is marked that the line 5F4 ( 5F2) 5I8 is very intense and have very high stimulated emission cross-section and is most suitable for easer emission in Ho 3+ in tellurite glass. __________________________________________________*****_________________________________________________