We demonstrate a passively Q-switched fiber laser system generating pulses
with as much as 0.1 mJ of pulse energy at 1.53 mu m and a > 1-kHz repetitio
n rate. These results were achieved with a simple master oscillator power a
mplifier scheme with a single pump source, realized with large-mode-area fi
ber and multiple reflections upon a semiconductor saturable-absorber mirror
. (C) 1999 Optical Society of America.