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Angular Filtering by Volume Bragg Grating in Photothermorefractive Glass for ns Laser Pulse

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摘要

The two-dimensional angular filter based on volume Bragg gratings in photothermorefractive glass for ns laser pulse is demonstrated. The experimental results show that the near-field beam quality of laser pulse was effectively improved. The near-field modulation and contrast ratio were improved 1.75 and 4.48 times, respectively. The PSD curves showed that the spatial frequencies more than 0.9mm-1 in x direction and 1.2mm-1 in y direction were effectively suppressed.

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作者单位:

    Soochow University
    Soochow University
    苏州大学现代光学研究所

引用该论文

Xiong Baoxing,Gao Fan,Zhang Xiang,Yuan Xiao. Angular Filtering by Volume Bragg Grating in Photothermorefractive Glass for ns Laser Pulse[J].Chinese Optics Letters,2019,17(4):04.