Optical properties of Ti:LMA

Abstract Single crystals of Ti:LaMgAl11019 (LMA:Ti) of 40 mm in diameter and 80 mm in length have been pulled by the Czochralski method. Parasitic absorption bands at 580, 730, 980 and 1200 nm for the polarization F//C have been observed and their evolution with annealings in oxyding or reducing atmospheres have been studied. They may be associated with the formation of Ti2+ and Ti4+ in the LMA.