FOV expanded upconversion imaging based on tight focusing system

YuQi Jiang; DaQuan Yu; GuoHua Gu; WeiJi He; Qian Chen

doi:10.1117/12.2603891

24 November 2021 FOV expanded upconversion imaging based on tight focusing system

YuQi Jiang, DaQuan Yu, GuoHua Gu, WeiJi He, Qian Chen

Proceedings Volume 12061, AOPC 2021: Infrared Device and Infrared Technology; 120610M (2021) https://doi.org/10.1117/12.2603891
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China

Abstract

In this work, a field-of-view(FOV) expanded tight focusing up-conversion imaging system at 1550 nm is proposed. To satisfy the non-collinear phase-matching and increase the field-of-view, three groups 4f system are inserted. To enhance the intensity of converted images, the signal pulse at 1550 nm with the average power of 0.14mW is tight focused into a 1mm thick periodically poled lithium niobate (PPLN) bulk by a lens with 30mm focal length. Pumped by a continue-wave beam with the power of 1W, the 1550 nm pulse is converted to 863 nm and the pattern of target is captured by an industry camera. According to the experiment, the converted image with the pixel of 1000 × 1000 is reached and the diameter of FOV reaches 7.15 mm.

Citation Download Citation

YuQi Jiang, DaQuan Yu, GuoHua Gu, WeiJi He, and Qian Chen "FOV expanded upconversion imaging based on tight focusing system", Proc. SPIE 12061, AOPC 2021: Infrared Device and Infrared Technology, 120610M (24 November 2021); https://doi.org/10.1117/12.2603891

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