In this paper

the spectrum characteristics of Ti

3+

: Sapphire crystal are expounded in detail

theoritically; and the conditions for realizing the laser operation of Ti

3+

: Sapphire laser are studide thoroughly

too. Meanwhile

the numerical value optimum scheme of the cavity structure design of astigmatically compensated

Z-model cavity is put forward. In addition

the theoritical analyses are done for the mmutual relations between the threshold pump power and cavity structure or cavity loss

in which the CW laser operation is realized for Ti

3+

: Sapphire laser. By experimental researching

under room temperature condition

the wide band laser operation of Ti

3+

: Sapphire laser of the two-reflector cavity is achieved

by Q-switch SHG YAG laser longituditally pumping. The output wavelength is in the near IR scope. Meanwhile

the qualitative studies are done for the phenomenon that the laser operation is inflenced by the pulse energy

pulse breadth

beam radius

polarized characteristies of the pump light. Also

the same studies are done for the phenomenon that the reflector film is damaged by the pump light.