Ho:YAG laser applications in eye posterior segment surgery for cutting and coagulation

nal (up to 10 V) or the &bit digital signal (from the printer port of IBM PC) to the proportional output voltage up to 1 kV. Another kind of control of the voltage (and correspondingly the intensity of the laser beam) is by means of the disbalance signal between analog or digital input signal and the feedback signal. By use of the optical feedback, a good simulation of Ruby pYmp,ng , .eg,Loser L . 8 ) a ~ m