ELECTROOPTIC CONTROL OF SOLID-STATE LASER-RADIATION BY PLZT CERAMICS MODULATORS

Small size PLZT 8.5/65/35 ceramics modulators (4x6x18 mm(3)) are used for electrooptic extra-cavity pulse slicing of the free running Er:YAG laser (lambda = 2.94 mu m) The rise time of the modulated pulse is 2 mu s and the decay time is 5 mu s, the halfwave voltage U-lambda/2 = 1 350 V and optical losses approximate to 40%. Q-switching of the Er:YAG laser also is realized using PLZT 8.5/65/35 ceramics electrooptic mod ulators. The width of a single Q-switched pulse approximate to 150 ns and energy - not less than 5 mJ. PLZT ceramics modulators (5x5x6 mm(3) ) are used for the electrooptic attenuation of another used in medicin e - cw Nd:YAG laser (lambda = 1.06 mu m) radiation: halfwave voltage U -lambda/2 = 1450 V, transmittance approximate to 65%.