Passive q-switch laser and method for optimizing action of the same

An operation optimization method of a passive Q-switch laser, which comprises an excitation source that is excited at a repetition frequency and outputs an excitation light;

• a laser medium that is in-place between a pair of reflection mirrors consisting of a optic resonator outputs a laser beam excited by an excitation light from said excitation source;
• and a saturable absorber that is in-place between said pair of the mirrors increases, a transmittance in accordance with an absorption of the laser beam from said laser medium;
• the method comprising steps of:
• generating a matrix table that stores an optimal value of the output of said excitation source and an optimal value of the pulse width relative to said repetition frequency incoordination with one another;
• and,
• controlling said control element that reads out the optimal value of the output of said excitation source and the optimal value of the pulse width, respectively corresponding to the input repetition frequency, and that refers to said matrix table and controls the excitation source so as to have a read-out optimal value of the output of said excitation source and a read-out optimal value of the pulse width.