| 摘要 |
PROBLEM TO BE SOLVED: To provide a discharge-excited pump laser device wherein a stable beam profile can be obtained by stabilizing the shape of a discharge space. SOLUTION: In this discharge-excited pump laser device, main electrodes (5A, 5B) which are arranged sandwiching the discharge space (16) and excite laser medium by generating main discharge (35) between the electrodes are installed. An electric field control electrode (37) is arranged in a side part of the discharge space (16), almost parallel with the main electrodes (5A, 5B) in the longitudinal direction, and an electric field control voltage (-VE) which shuts electrons in the discharge space (16) into the inside is applied to the electric field control electrode (37). The discharge-excited pump laser device is a pulse laser equipment, and the electric field control voltage (-VE) is changed in accordance with oscillating frequency of pulse oscillation. |
