Mid-infrared upconversion imaging pumped by sub-nanosecond micro-cavity laser

Lingwei Zhao; Lei Liu; Wei Zhao; Chuan Guo; Hongyan Wang; Weihong Hua

doi:10.1117/12.2523830

29 March 2019 Mid-infrared upconversion imaging pumped by sub-nanosecond micro-cavity laser

Lingwei Zhao, Lei Liu, Wei Zhao, Chuan Guo, Hongyan Wang, Weihong Hua

Proceedings Volume 11046, Fifth International Symposium on Laser Interaction with Matter; 1104607 (2019) https://doi.org/10.1117/12.2523830
Event: Fifth International Symposium on Laser Interaction with Matter, 2018, Changsha, China

Abstract

Based on the polarization period of 22.67um magnesium-oxide-doped lithium niobate (MgO: PPLN) Crystal, a 4f midinfrared imaging system was constructed. The electronic enhanced charge-couple device (EMCCD) was used to receive the mid-infrared images to improve the sensitivity of the systerm. The resolution tablets of USAF 1951 were used to confirm the performance of the optical system. In this experiment, mid-infrared upconversion from 3412 nm to 3482 nm were achieved by changing the crystal temperature and the wavelength of the signal light. The upconversion imaging at 3482nm was attained by a silicon based CCD camera with the conversion efficiency of 3.8×10^-6 and the resolution of 2.52/2 lp/mm.

Citation Download Citation

Lingwei Zhao, Lei Liu, Wei Zhao, Chuan Guo, Hongyan Wang, and Weihong Hua "Mid-infrared upconversion imaging pumped by sub-nanosecond micro-cavity laser", Proc. SPIE 11046, Fifth International Symposium on Laser Interaction with Matter, 1104607 (29 March 2019); https://doi.org/10.1117/12.2523830

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