| 摘要 |
PURPOSE:To oscillate a laser for a long period and lengthen the life by providing a means which continuously supplies the oscillation member having long oscillation face to the area irradiated by a pumping light source. CONSTITUTION:The sheet 13, which is wound in a roll and becomes an oscillating member, is inserted into an oscillation vessel 10 from a sheet inlet 11 and is drawn out of the sheet outlet 12. New oscillation face of the sheet 13 is continuously supplied to the area irradiated by a pumping light. Since the roll of sheet 13 is continuously fed and is supplied to the area irradiated by a pumping light source 14, new oscillation face is supplied always to the part, and the laser can oscillates long and the life can be lengthened. |
