Collection Of theses on high power laser and plasma physics, 2008, 6 (1): 80, Published Online: Oct. 9, 2009
Optimal Design of Grating-Size-Limited Compressor
光学器件 光栅压缩器 拍瓦激光装置 啁啾脉冲放大 optical devices grating compressor petawatt laser facility chirped pulse amplification
Abstract
Pivotal parameters and restricted condition of the grating-size-limited compressor in an ultra-short, ultra-intense laser system are analyzed, and three basic parameters are obtained. An optimal method for compressor to output a maximal pulse energy is developed, and the maximal output pulse energy of the grating-size-limited compressor is given. Compared with the traditional circular beam method, an advanced elliptical beam method is presented, which could be used to output much higher pulse energy, a smaller spot size and a larger focal intensity. Using numerical simulation, the maximal output pulse energy of the 500 mm grating compressor based on the circular beam and the elliptical beam are calculated separately. The results show that the 500 fs, 500 J, 1 PW pulse can be obtained without using tiled grating technology if elliptical beam method is used.
Li Zhaoyang, Dai Yaping, Wang Tao, Xu Guang. Optimal Design of Grating-Size-Limited Compressor[J]. Collection Of theses on high power laser and plasma physics, 2008, 6(1): 80.
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