Sensitive infrared signal detection by upconversion technique

Teh-Hwa Wong; Jirong Yu; Yingxin Bai; William Johnson; Songsheng Chen; Mulugeta Petros; Upendra N. Singh

doi:10.1117/1.OE.53.10.107102

6 October 2014 Sensitive infrared signal detection by upconversion technique

Teh-Hwa Wong, Jirong Yu, Yingxin Bai, William Johnson, Songsheng Chen, Mulugeta Petros, Upendra N. Singh

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Optical Engineering, Vol. 53, Issue 10, 107102 (October 2014). https://doi.org/10.1117/1.OE.53.10.107102

Abstract

We demonstrated upconversion assisted detection of a 2.05-μm signal by sum frequency generation to generate a 700-nm light using a bulk periodically poled lithium niobate crystal. The achieved 94% intrinsic upconversion efficiency and 22.58% overall detection efficiency at a pW level of 2.05 μm pave the path to detect extremely weak infrared (IR) signals for remote sensing applications.

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Teh-Hwa Wong, Jirong Yu, Yingxin Bai, William Johnson, Songsheng Chen, Mulugeta Petros, and Upendra N. Singh "Sensitive infrared signal detection by upconversion technique," Optical Engineering 53(10), 107102 (6 October 2014). https://doi.org/10.1117/1.OE.53.10.107102

Published: 6 October 2014

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