Research On Multi-Wavelength Solid-State Laser

Laser diode-pumped solid-state green lasers have an extremely important applications as the industrial, basic science research, military and medicine field, and so on., it is precisely because some of the advantages, such as the small size, long lifetime, compactness, environmental protection high stability and efficiency.Among those, solid-state multi-wavelength lasers have wide scope of applications in many fields than single wavelength lasers, because it is of the unique advantages of multi-wavelength lasers emission simultaneously or alternatively, with the development of modern clinical medicine,color printing,laser display and spectroscopy and so on. In this paper,LD-pumped multi-wavelength green laser is studied.As follows:1. Understanding of the development of solid-state lasers, we mastered the advantages and disadvantages about LD-pumped green laser. Multi-wavelength laser's applications and obtained methods are classified. At last present development of LD pumped solid-state multi-wavelength lasers in the world is introduced.2.Multi-wavelength lasers were analyzed theoretically based on the coupled-wave equation and the rate equation. Laser crystal and nonlinear crystal in DPSSL have been researched3.In respect of experiments, LD end-pumped Optical-contact composites Nd:YVO4+KTP three-wavelength laser is output (532nm,537nm,542nm).The oscillation condition for the simultaneous dual-wavelength operation at 1064nm and 1084nm,the impact frequency conversion efficiency on fundment oscillation and the reason of three wavelength intensity changed with pump power were studied.