| 摘要 |
PURPOSE:To reduce the capacitance of a power supply by a method wherein the selective usage of the optimum resistance value of a stabilized resistor is made possible following the change in operational condition of a laser oscillator. CONSTITUTION:One lead wire of a voltage generating device 1 is connected to the electrode 4 of a laser oscillator 3 through the intermediary of a stabilized resistor 2. The other lead wire is directly connected to the electrode 4 of the laser oscillator, and they constitute a closed loop. An arbitrary point of the stabilized resistor 2 is connected to a switching device 5, and the other point is connected between the stabilized resistor 2 and the electrode 4. The two resistance values of large and small can be obtained for the stabilized resistor 2 by performing an opening and closing operation on the switching device 5. As the condition of operation is monitored and the stabilized resistance value can be switched to large or small value, the laser output can be increased from the time of operation mode at high resistance value without increasing the capacitance of the power supply at low resistance operation mode. As a result, the laser oscillator can be made smaller in size in a high degree and the cost of production can also be cut down. |
