general model has been developed for the optimization
of fiber-coupled laser-diode pumped lasers by including
the effect of pump-beam quality into the mode-overlap integrals.
The numerical results of the mode-overlap integrals have been
fitted to an analytical function of pump spot size, laser mode
size and the parameter p, which is in terms of laser-diode beam
quality and properties of the active medium. This analytical
function allowed us to obtain explicit formulae for the threshold
pump power, the slope efficiency, and the optimum pump spot
size. With these formulae, the optimum mode size and the
maximum output efficiency can be easily calculated for arbitrary
values of /3 and input power. From the numerical results, we
obtained an analytical expression to relate the required input
power and pump-beam quality to the desired output efficiency
and properties of an active medium. The present model provides
a straightforward procedure to design the laser resonator and the
optical coupling system for optimization. To illustrate the utility
of the present model, a Nd:YAG laser pumped by fiber-coupled
laser diodes is considered and optimized.
I. INTRODUCTION
關聯:
IEEE JOURNAL OF QUANTUM ELECTRONICS, VOL. 32, (11), p.2010-2016
如有問題歡迎與系統管理員聯繫 
