Abstract
A 40 % slope efficiency from a pulsed Er3+LiYF4 is demonstrated under cw Ti:sapphire pumping. This value clearly exceeds the Stokes limit of 35 % due to energy recycling fiom lower to upper laser level. With reduction of the pump-pulse duration a decrease of the slope efficiency and an increase of the threshold is experimentally observed and confirmed by a computer simulation. An approximate function following an exponential law can be used to describe the dependence of the slope efficiency on the pump-pulse duration.
© 1996 Optical Society of America
PDF ArticleMore Like This
S. Wittwer, M. Pollnau, R. Spring, W. Lüthy, H. P. Weber, R. A. McFarlane, Ch. Harder, and H. P. Meier
CThI18 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 1996
T. Jensen, G. Huber, and K. Petermann
IL5 Advanced Solid State Lasers (ASSL) 1996
M. Pollnau, W. Lüthy, and H. P. Weber
CTuL5 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 1996