Abstract

Er:YAG lasers, due to their radiation strong interaction with human tissue, are going to find application in medicine, particularly in dentistry.¹ The present work reports on the setup for computercontrolled modulation of Er:YAG laser beam. The control of the beam intensity by means of conventional electrooptic (EO) modulators meets essential difficulties due to the great wavelength of the Er:YAG laser and absorption of EO materials. We use as the electrooptic media PLZT transparent ceramics—a material with high values of EO coefficients and well transparent up to 5 microns.

© 1994 IEEE