Three-dimensional spatiotemporal self-referenced characterization of ultrashort pulses using the coherent diffraction imaging technique

Youjian Yi; Yingming Xu; Ping Zhu; Xingchen Pan; Dongjun Zhang; Yan Liang; Linjun Li; Jun Kang; Qingwei Yang; Ailin Guo; Haidong Zhu; Qi Gao; Meizhi Sun; Xiao Liang; Xinglong Xie; Cheng Liu; Jiangqiang Zhu

doi:10.1117/12.2591441

28 February 2021 Three-dimensional spatiotemporal self-referenced characterization of ultrashort pulses using the coherent diffraction imaging technique

Youjian Yi, Yingming Xu, Ping Zhu, Xingchen Pan, Dongjun Zhang, Yan Liang, Linjun Li, Jun Kang, Qingwei Yang, Ailin Guo, Haidong Zhu, Qi Gao, Meizhi Sun, Xiao Liang, Xinglong Xie, Cheng Liu, Jiangqiang Zhu

Author Affiliations +

Proceedings Volume 11781, 4th Optics Young Scientist Summit (OYSS 2020); 117811P (2021) https://doi.org/10.1117/12.2591441
Event: Optics Frontier: Optics Young Scientist Summit, 2020, Ningbo, China

Abstract

We proposed a self-referenced technique for measuring the spatiotemporal characteristics of ultrashort pulses using the coherent diffraction imaging. This technique includes the wavelength spatial multiplexing coherent diffraction imaging measurement and the three-dimensional spatiotemporal amplitude and phase reconstruction. In experiment, we verified the feasibility of this technique by measuring a pulse from the femtosecond laser oscillator. Wavelength spatial multiplexing was realized by the combination of two-dimensional diffracted optical element and narrow-band-pass filter, and the amplitude and phase information of each wavelength was recovered by ePIE (extended Ptychographic Iterative Engine) algorithm. This technique can measure the three-dimensional spatiotemporal amplitude and phase information of ultrashort pulses with high resolution and simplicity. In the future, it is expected to be an effective method for the comprehensive monitoring of the spatiotemporal optical field of ultrashort pulse lasers, and will be helpful for the laser performance improvement.

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Youjian Yi, Yingming Xu, Ping Zhu, Xingchen Pan, Dongjun Zhang, Yan Liang, Linjun Li, Jun Kang, Qingwei Yang, Ailin Guo, Haidong Zhu, Qi Gao, Meizhi Sun, Xiao Liang, Xinglong Xie, Cheng Liu, and Jiangqiang Zhu "Three-dimensional spatiotemporal self-referenced characterization of ultrashort pulses using the coherent diffraction imaging technique", Proc. SPIE 11781, 4th Optics Young Scientist Summit (OYSS 2020), 117811P (28 February 2021); https://doi.org/10.1117/12.2591441

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