Comparative analysis of the Cr3+ centre spectroscopic properties in LiNbO3 crystals from congruent to nearly stoichiometric compositionsF. Lhommé, P. Bourson, G. Boulon, Y. Guyot and M. D. FontanaEur. Phys. J. AP, 20 1 (2002) 29-40DOI: https://doi.org/10.1051/epjap:2002073