Title :
Efficiency and threshold pump intensity of CW solar-pumped solid-state lasers
Author :
Hwang, In Heon ; Lee, Ja H.
Author_Institution :
Hampton Univ., VA, USA
fDate :
9/1/1991 12:00:00 AM
Abstract :
The authors consider the relation between the threshold pumping intensity, the material properties, the resonator parameters, and the ultimate slope efficiencies of various solid-state laser materials for solar pumping. They clarify the relation between the threshold pump intensity and the material parameters and the relation between the ultimate slope efficiency and the laser resonator parameters such that a design criterion for the solar-pumped solid-state laser can be established. Among the laser materials evaluated, alexandrite has the highest slope efficiency of about 12.6%; however, it does not seem to be practical for a solar-pumped laser application because of its high threshold pump intensity. Cr:Nd:GSGG is the most promising for solar-pumped lasing
Keywords :
beryllium compounds; chromium; gadolinium compounds; garnets; neodymium; optical pumping; scandium compounds; solid lasers; 12.6 percent; CW solar-pumped solid-state lasers; GdScGG:Cr,Nd; GdScGa5O12:Cr,Nd; alexandrite; design criterion; material properties; resonator parameters; solar pumping; solid-state laser materials; threshold pump intensity; ultimate slope efficiencies; Building materials; Crystalline materials; Electromagnetic scattering; Laser excitation; Laser modes; Laser theory; Optical materials; Particle scattering; Pump lasers; Solid lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
