| 摘要 |
PURPOSE:To lower the discharge starting voltage of a noiseless discharge type CO2 gas laser and to facilitate the control of discharge power by arranging a metal piece connected to the ground potential in the discharge space of the laser, thereby deforming the spatial electric field of the discharge space. CONSTITUTION:A high frequency high voltage is applied from a power supply 2 to a pair of dielectric electrodes 1, and is flowed in a direction designated in a laser gas 7 between the electrodes 1. Then, a voiceless discharge is uniformly formed in the discharge space 3, thereby exciting the laser gas. Then, the excited laser gas is oscillated by a fully reflecting mirror 4 and a partly reflecting mirror 5, and the output beam 6 is outputted from the mirror 5. Then, a metal piece 21 is arranged in the space 3, the spatial electric field is deformed in the space 3, and as the applied voltage is raised, the discharge is first produced from the periphery of the piece 21. |
