Laser & Optoelectronics Progress, Volume. 55, Issue 11, 111405(2018)
Theoretical Research of "Intensity Sweep" Laser Beam Smoothing Characteristics
The physical content of smoothing by spectral dispersion (SSD) technology is theoretically explained that the focal spot smoothing effect of SSD results from the temporal change of the far-field primitive electric field phase, and there is no physical image of "moving" focal spot in the practical application of SSD. On this basis, the theoretical model of "intensity sweep" laser beam, which has a far-field intensity distribution with constant form but temporal changed spatial position, is established. The smoothing characteristics of the beam are studied by numerical simulation compared with that of SSD.
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Tianran Zheng, Ying Zhang, Yuanchao Geng, Wanqing Huang, Lanqin Liu, Xibo Sun, Wenyi Wang, Ping Li, Rui Zhang, Dongxia Hu. Theoretical Research of "Intensity Sweep" Laser Beam Smoothing Characteristics[J]. Laser & Optoelectronics Progress, 2018, 55(11): 111405
Category: Lasers and Laser Optics
Received: May. 28, 2018
Accepted: Jun. 4, 2018
Published Online: Aug. 14, 2019
The Author Email: Zhang Ying (zhangying@tsinghua.org.cn)