| 摘要 |
A technology for stabilizing the power of pulsed light that is output from a laser processing apparatus is provided. A laser processing apparatus (100) includes optical amplifying fibers (1, 8) that amplify seed light using excitation light, a seed LD (2) that generates seed light in a pulsed manner, and excitation LDs (3, 9A, 9B) that generate excitation light. The conditions for the excitation light during a non-emitting time period during which the seed light is not generated can be varied based on conditions relating to laser light that is output from the laser processing apparatus (100). The control apparatus (20) varies the conditions for the excitation light during the non-emitting time period by controlling drivers (22, 23A, 23B). This makes it possible to stabilize the energy of pulsed light that is output from the laser processing apparatus regardless of the length of the non-emitting time period. |
