大学物理 ›› 2020, Vol. 39 ›› Issue (12): 32-35.doi: 10.16854 / j.cnki.1000-0712.200026

• 物理实验 • 上一篇    下一篇

利用量热型激光功率计测量脉冲激光能量的实验研究

苗昕扬,彭 雪,路婉婷,詹洪磊,赵 昆   

  1. 中国石油大学(北京)新能源与材料学院,北京 102249
  • 收稿日期:2020-01-22 修回日期:2020-03-24 出版日期:2020-12-20 发布日期:2020-12-01
  • 通讯作者:
  • 作者简介:苗昕扬(1992—),男,辽宁盘锦人,中国石油大学(北京)材料科学与工程系讲师,博士,主要从事油气储层激光检测技术研究.
  • 基金资助:

    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

Experimental study of the energy measurement of the pulse laser with a calorimetric laser power meter#br#

MIAO Xinyang,PENG Xue,LU Wanting,ZHAN Honglei,ZHAO Kun   

  1. College of New Energy and Materials,China University of Petroleum (Beijing),Beijing 102249,China
  • Received:2020-01-22 Revised:2020-03-24 Online:2020-12-20 Published:2020-12-01

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.

关键词: 脉冲激光, 量热型功率计, 平均能量, 重复频率

Abstract:

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.

Key words: pulsed laser, calorimetric power meter, average energy, epetition frequency