CONTINUOUS-WAVE LASER PROPERTIES OF THE SELF-FREQUENCY-DOUBLING YAL3(BO3)(4)ND CRYSTAL

In this paper the laser propel-ties of Nd3+ ion in yttrium aluminum be rate crystal are systematically investigated under continuous-wave end pumping by using a Ti:sapphire tunable laser. Spectral characteristic s in the diode-pumping region are analyzed, and no significant excited -state absorption of pumping radiation is predicted. Internal losses a re determined to be as low as 0.02 cm(-1) and a net-gain cross section of 1.7 x 10(-19) cm(2) for the infrared laser line at 1062 nm. Differ ent cavity configurations devoted to demonstrate the possibility of lo w threshold, high slope efficiency at 1062 nm, and efficient laser gen eration at 531 nm by self-frequency doubling are investigated for the ordinary and extraordinary beams. (C) 1998 Optical Society of America.