NIR emission analysis of Er~(3+)/Yb~(3+) and Er~(3+)/ Tm~(3+) ions doped Zinc lithium boro tellurite (ZLiBT) glasses for optical fiber amplification

摘要

This paper reports on the development and the near infra-red emission(NIR) analysis of Er~(3+)/Yb~(3+) and Er~(3+)/Tm~(3+) ions doped TeO_2 - B_2O_3 - ZnO - Li_2O glasses for tunable laser and optical fiber amplification. From the measured near infra-red emission spectra of Er~(3+)/Yb~(3+), Er~(3+)/Tm~(3+): ZLiBT glasses have revealed the prominent near infra-red emission bands at 1532 nm (~4I_(13/2) → ~4I_(15/2)), with an excitation wavelength ofλ_(exci) = 515 nm (Ar~+ ion laser). The full width at half-maxima (FWHM) values are also estimated from the measured near infra-red emission spectra of the glasses. Based on spectral results, broad near infra-red emissions should have potential applications in broadly tunable laser sources and broad band optical amplification at low-loss telecommunication windows.