摘要
本文提出了一种利用量热型激光功率计测量窄脉冲激光能量的方法.测试了不同重复频率下脉冲激光的信号响应,结果表明,在脉冲激光重复频率不低于8 Hz、脉冲激光与功率计探头作用时间不低于4 s的情况下,量热型激光功率计能够达到热平衡,利用读数能够计算出单个脉冲激光的平均能量.
In this paper,a method is proposed to measure the laser energy of the narrow pulses by using a thermal power meter.The laser response is measured at different repetition frequencies.The results suggest that the calorimetric laser power meter can achieve heat balance when the frequency is higher than 8 Hz and the interaction time between the laser and the probe is not less than 4 s.The average energy of a single pulse laser can be calculated by the indicator.
作者
苗昕扬
彭雪
路婉婷
詹洪磊
赵昆
MIAO Xin-yang;PENG Xue;LU Wan-ting;ZHAN Hong-lei;ZHAO Kun(College of New Energy and Materials,China University of Petroleum(Beijing),Beijing 102249,China)
出处
《大学物理》
2020年第12期32-35,共4页
College Physics
基金
中国石油大学(北京)研究生教育质量与创新工程重点项目(yjs-2017019)
国家自然科学基金项目(11804392)
北京市自然科学基金项目(1184016)
中国石油大学(北京)科研基金项目(ZX20190163,2462017YJRC029)资助。
关键词
脉冲激光
量热型功率计
平均能量
重复频率
pulsed laser
calorimetric power meter
average energy
repetition frequency
