Mid-infrared emission and quantitative analysis of energy transfer processes in Er<sup>3+</sup>doped oxyfluogermanate glasses

Publication Type:
Journal Article
Citation:
Journal of Applied Physics, 2015, 117 (24)
Issue Date:
2015-06-28
Full metadata record
© 2015 AIP Publishing LLC. Oxyfluogermanate glasses with good thermal stability were prepared by melt-quenching method. The investigation of 2.7μm fluorescence spectra and energy transfer mechanism was performed pumped by an 808nm laser diode. The 2.7μm radiative transition probability and emission cross section are 32.62s-1and 12.88×10-21cm2, respectively. The energy transfer parameters between4I11/2and4I13/2levels were calculated by Inokuti-Hirayama and Yokota-Tanimoto's model to further elucidate 2.7μm fluorescent behaviors. It is found that the energy transfer mechanism among Er3+is mainly dominated by dipole-dipole interactions. Results indicate that the prepared oxyfluogermanate glass is a promising candidate for mid-infrared laser applications.
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