Spectroscopic properties of Er3+ transitions in SrWO4 crystal -: art. no. 093525

Er3+:SrWO4 crystal of good optical quality was grown by Czochralski technique method. Polarized absorption and emission spectra of Er3+ ions in SrWO4 crystal have been investigated. The Judd-Ofelt (JO) theory was applied to the polarized absorption spectra of Er3+:SrWO4 to obtain the three JO parameters: Omega(2) = 7.41 x 10(-20) cm(2), Omega(4) = 0.25 x 10(-20) cm(2), and Omega(6) = 1.71 x 10(-20) cm(2). The radiative probabilities, radiative lifetimes, and branch ratios of Er3+:SrWO4 were calculated. The stimulated emission cross sections of the potential laser transitions at 1535 nm were determined using the reciprocity method and the Fuchtbauer-Ladenberg formula, and the potential laser gain versus wavelength for the I-4(13/2)-> I-4(15/2) transition has been estimated and discussed. (c) 2005 American Institute of Physics.