We describe a frequency-stabilized diode-pumped Nd:YAG laser of high p
ower whose single-mode operation is obtained by suppressing the spatia
l hole burning through the twisted-mode technique, Active frequency st
abilization is achieved by fringe side locking the laser beam to a ref
erence Fabry-Perot cavity, Output power up to 800 mW in single-transve
rse and -longitudinal mode operation with a linewidth of less than 20
kHz is obtained.