Recent demonstration of the wavelength tunable Ti

3+

:Al

2

O

3

laser has led to increased interest in the growth and spectroscopic characters of Ti

3+

Al

2

O

3

crystal. The characteristics of crystal depend on the growth method. Two key properties of these crystals are the concentration and optical absorption cross section of the Ti

3+

ions. The single crystal having high concentration of Ti

3+

(0.3 wt%)and good optical quality

was grown with IFUS method(Induction Field Up-Shift Method). The absorption

polarized fluorescence spectra and lifetime were masured at 300K.Analysis of the fluorescence spectra of Ti

3+

ions in Al

2

O

3

is made for the temperature ranged for 15K to 290K.The temperature dependence of fluorescence spectra of Ti

3+

-doped sappire is shown in Fig.6.