A simplified method for determination of the induced-emission cross section of neodymium doped glasses

Induced-emission cross sections for the
⁴
F_{3/2}\rightarrow
⁴
I_{11/2}
and
⁴
F_{3/2} \rightarrow
⁴
I_{13/2}
transitions of Nd
³⁺
in glasses can be determined with a satisfactory precision by a simplified method, based on the Judd-Ofelt theory, from the measurement of the integrated absorbance of the 750-nm band and of the effective linewidth of the fluorescence band.