Ld Pumped Of Cr: Lisaf Frequency-doubled Lasers And Uv He-cd Laser Development,

Diode-pumped and frequeccy-doubled Cr:LiSAF blue laser has become popular in solid laser research in recent years for its short wavelength , high conversion efficiencies, tenability and simple structure . In the first two chapters of this thesis, we have studied this subject. In chapter 1, we have studied doubling property of type I critical phase matching LBO crystal at fundamental harmonic theoretically. In chapter 2 of this thesis ,LD end-pumped and intra-cavity frequency-doubled Cr:LiSAF blue laser has been researched in theory and experiment. Ultraviolet laser is another focus of laser technology. 325nm-wavelength He-Cd + laser has good beam quality and relatively low cost so it has been used as coherent light source in various fields. In chapter 3,we have studied the ultraviolet He-Cd~ laser which was made by ourself in theory and experiment.