Tm Ho:YVO4 crystals

摘要

Abstract: In this paper, a kind of new crystals-Tm,Ho:YVO - have been investigated for the use of 2 $mu@m lasers. The absorption and fluorescence spectra of the crystals have been measured to get absorption cross section and effective cross section. The characteristics of these crystals varied with concentration of Tm$+3$PLU$/ and Ho$+3$PLU$/ were discussed to determine the best conditions in which the crystal can work. The temperature effect of the crystals was measured. All the results are contracted with Tm,Ho:YAG to decide whether this kind of crystals can be used in 2 $mu@m lasers.!6