LASER CONTROL METHOD, LASER APPARATUS, LASER TREATMENT METHOD USED FOR THE SAME, LASER TREATMENT APPARATUS

摘要

A laser control method capable of obtaining stable laser pulse laser and eliminating a useless time of tact time. The laser control method uses a gain medium and a Q-switch in such a manner that excitation light is continuously radiated to the gain medium to set the Q-switch to a continuous oscillation mode and laser pulse is obtained by providing a predetermined halt period before laser pulse generation. When the continuous oscillation period of the Q-switch has continued for more than a predetermined period of time, the Q-switch halt period for obtaining the second laser pulse and after is different from the Q-switch halt period for obtaining the first laser pulse.