Research Progress in Solid -State Lasers Based on Rare Earth Ion -doped Oxyfluoride Glass Ceramics

Combining the advantages of oxide glass and fluoride crystal, the oxyfluoridc glass ceramic introduces a low phonon energy filed into stable amorphous glass, making it an excellent matric material for rare earth ions to radiate. Hence, the oxyfluoridc glass ceramic has a unique and important application in the field of high-efficiency and high-power lasers. At present, researches on rare earth ion-doped oxyfluoridc glass ceramics arc mainly focused on their luminescent mechanism. Furthermore, using excellent materials to achieve laser output is still in its infancy. This study introduces the research progress in solid-state lasers based on rare earth ion -doped oxyfluoridc glass ceramics, including fiber lasers, whispering gallery mode lasers, and random lasers. In addition, the advantages and disadvantages of rare earth ion -doped glass ceramic applied as gain medium of solid-state lasers arc analyzed and discussed. The technical points of this material for solid-state lasers arc summarized, and the future development direction is prospected.