PLZT ceramics electrooptic modulators for infrared solid state Nd:YAG and Er:YAG lasers

PLZT 8.75/65/35 ceramics modulators are developed for solid state infrared lasers used in medicine. The halfwave voltage U/sub /spl lambda//2/ for the cw Nd:YAG (1.06 /spl mu/m) laser DC mode electrooptic modulation is 1450 V, and the modulator size is 5/spl times/5/spl times/6 mm/sup 3/. For Er:YAG pulse mode modulation, the modulator has a size of 4/spl times/6/spl times/18 mm/sup 3/, and U/sub /spl lambda//2/ is 1350 V with 300 V DC bias. By modulation, 150 /spl mu/s long pulses with rise and decay times less than 5 /spl mu/s can be achieved.