Automatic phase-locked control of grating tiling

作者：Yang, Yuchuan^*; Wang, Xiao; Zhang, Junwei; Luo, Hui; Li, Fuquan; Huang, Xiaojun; Jing, Feng

来源：Optics and Lasers in Engineering, 2012, 50(2): 262-267.

DOI：10.1016/j.optlaseng.2011.08.004

• Tiling grating
• Phase locking
• Far-field monitor
• SPGA algorithm

The development of phased-array grating compressor is a crucial issue for the high-energy, ultra-short pulse petawatt-class lasers. Several systems have adopted the tiling-grating approach to meet the size requirements for the compression gratings. Grating tiling need to be precisely phased to ensure a transform-limited focal spot when focusing the high-energy laser pulses onto the target. Monochromatic grating automatic phasing and performance maintaining are experimentally achieved with a far-field CCD camera technique based on a two-tiling system.

• 出版日期2012-2
• 单位中国人民解放军国防科学技术大学