Collection Of theses on high power laser and plasma physics, 2007, 5 (1): 118, Published Online: Sep. 18, 2008
Spatial characteristic of tiled-grating compressor
角度偏差 位移偏差 角谱 拼接光栅 空域特性 皮秒激光 Tip-tilt error Piston error Angular spectrum Tiling-grating Spatial characteristic Picosecond laser
Abstract
Introducing the tip-tilt and piston error as the parameter and defining the aperture function of the tiled-grating, far-field property was analyzed with Gaussian beam incidence using the theory of Fourier angular spectrum. The results showed that the output beam was Gaussian while the center of the envelope shifted, the shift magnitude was determined by angle errors and beam size. The phase difference caused by piston error translated with the tiled-grating compressor, the focal spot was affected by both non-integral number of grating space and out-of-plane piston error. Numerical simulation showed the effect on the spatial characteristic of the tiled-grating compressor due to alignment errors.
MA Xue-mei, DAI Ya-ping, ZHU Jian-qiang. Spatial characteristic of tiled-grating compressor[J]. Collection Of theses on high power laser and plasma physics, 2007, 5(1): 118.