Design and fabrication of transmission gratings with high diffraction efficiency for pulse compression

Chaoming Li; Xinrong Chen; Lin Li; Xiaoyang Li; Hang Zha; Jian Yu; Zuyuan Hu; Wenlong Zou; Jianhong Wu; Zenghu Chang

doi:10.1117/12.2244872

9 November 2016 Design and fabrication of transmission gratings with high diffraction efficiency for pulse compression

Chaoming Li, Xinrong Chen, Lin Li, Xiaoyang Li, Hang Zha, Jian Yu, Zuyuan Hu, Wenlong Zou, Jianhong Wu, Zenghu Chang

Proceedings Volume 10016, High-Power Lasers and Applications VIII; 100161D (2016) https://doi.org/10.1117/12.2244872
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

Fused silica transmission grating plays an important role in the ultra-short laser pulse compression system. Fused silica transmission grating have the advantages of high diffraction efficiency, high damage threshold, long life and no shelter. The design and fabrication of pulse compression grating are investigated theoretically and experimentally in this paper. Rigorous coupled wave theory is used for design transmission grating with trapezoidal structure. The trapezoidal structure has better diffraction efficiency than that of the rectangular structure. The deep-etched fused silica transmission grating (1250lp/mm) is fabricated by holographic recording and ion beam etching. The aperture of transmission grating is Φ65mm, and its thickness is 1mm.The absolute -1st diffraction efficiency is about to 98%(@808nm). Experimental results are coincident with the theoretical analysis.

Citation Download Citation

Chaoming Li, Xinrong Chen, Lin Li, Xiaoyang Li, Hang Zha, Jian Yu, Zuyuan Hu, Wenlong Zou, Jianhong Wu, and Zenghu Chang "Design and fabrication of transmission gratings with high diffraction efficiency for pulse compression", Proc. SPIE 10016, High-Power Lasers and Applications VIII, 100161D (9 November 2016); https://doi.org/10.1117/12.2244872

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