中国激光, 2011, 38 (2): 0203004, 网络出版: 2011-01-21
纳秒双脉冲激光的控制方法
Nanosecond Dual Pulse Laser Controlling Method
激光技术 双脉冲激光 偏振组束 定时抖动 触发延迟 laser technique double-pulse laser polarization beam combination timing jitter trigger delay
摘要
研究了用于航空发动机涡轮叶片气膜孔加工的双脉冲激光控制方法。报道了采用两台闪光灯抽运的电光调Q激光器偏振组束产生100 ns左右时间间隔的双脉冲激光的实验结果。共轴的双脉冲激光的时间间隔可以在零到几百纳秒之间自由调节。双脉冲最大相对定时抖动小于5 ns。双脉冲激光器的重复频率40 Hz,双脉冲能量大于400 mJ。
Abstract
Double-pulse laser controlling method used for film cooling holes processing of aircraft engine turbine blade is studied. Double-pulse laser experimental results of producing approximately 100 ns temporal delay between the pulses with polarization beam combining by two sets of flash-lamp pumped electrooptical Q-switched laser are reported. The interval of co-aligned double-pulse laser can be turned freely from 0 to several hundred nanoseconds. The maximal timing jitter of double-pulse laser is less than 5 ns. The repetition rate of double-pulse laser is 40 Hz, and output energy per double-pulse laser is more than 400 mJ.
王学军, 孟繁禹, 李猛, 王静波, 高光波. 纳秒双脉冲激光的控制方法[J]. 中国激光, 2011, 38(2): 0203004. Wang Xuejun, Meng Fanyu, Li Meng, Wang Jingbo, Gao Guangbo. Nanosecond Dual Pulse Laser Controlling Method[J]. Chinese Journal of Lasers, 2011, 38(2): 0203004.