| 摘要 |
PROBLEM TO BE SOLVED: To suppress a calorific value of an acoustooptical element driving circuit. SOLUTION: A solid-state laser apparatus 10 initiates the drive of an acoustooptical element 4 at the same time or substantially the same time as that of the drive initiation of a semiconductor laser 1 to enlarge the loss of a resonator 6, and terminates the drive of an acoustooptical element 4 at a timing according to a lifetime T of fluorescence of a solid laser medium 3 to minimize the loss of a resonator 6. Thus, the time for driving an acoustooptical element 4 is short, so that the calorific value of an acoustooptical element driving circuit 8 can be suppressed and it becomes not necessary to attach a large dissipating component to the acoustooptical element driving circuit 8. In addition, the time for feeding an acoustooptical element driving RF signal R is short, so that the ectromagnetic interference EMI can be suppressed. The temperature rise of circuit components such as capacitor and coil can be suppressed and output stability can be enhanced. COPYRIGHT: (C)2010,JPO&INPIT |
