Collection Of theses on high power laser and plasma physics, 2014, 12 (1): 0202004, Published Online: May. 27, 2017
A Method of Online Diagnosing for Focusing Performance in Picosecond Parameter Measurement System
激光光学 激光束特征 高能激光 超快激光 laser optics laser beam characterization high-intensity lasers ultrafast lasers
Abstract
Focusing performance is an important parameter to improve peak power intensity of a laser facility. This paper provides a diagnostic method of focusing performance in order to realize a function of online diagnosing for focusing performance in petawatt laser. A high preciseness and low tolerance far-field diagnostics unit is designed in this method. Then measurement data is testified by a focal spot measurement unit in target room. At last the far-field diagnostics unit can be used to prove online diagnosing for focusing performance in petawatt laser. Experimental result shows that similarity between the far-field diagnostics unit and the focal spot measurement unit is about 1. So measurement data of far-field diagnostics unit can be used to diagnose peak power intensity with energy data and pulse width data when online diagnosing of peak power intensity in physics experiments is realized.
Ouyang Xiaoping, Hua Neng, Yang Lin, Liu Daizhong, Chen Ming, Tang Shunxing, Liu Chong, Zhu Jian, Zhu Baoqiang, Zhu Jianqiang. A Method of Online Diagnosing for Focusing Performance in Picosecond Parameter Measurement System[J]. Collection Of theses on high power laser and plasma physics, 2014, 12(1): 0202004.
PDF全文
