We report a nonlinear optical upconversion 3D imaging system for infrared radiation enabled by zinc indiffused MgO:PPLN waveguides. While raster-scanning a scene with an 1800 nm pulsed-laser source, we record time-of-flight information, thus probing the 3D structure of various objects in the scene of interest. Through upconversion, the 3D information is transferred from 1800 nm to 795 nm, a wavelength accessible to single-photon avalanche diode (SPAD).
Single-photon infrared waveguide-based upconversion imaging
Electro-optical and Infrared Systems: Technology and Applications XIX ; 2022 ; Berlin,Germany
Proc. SPIE ; 12271
2022-11-02
Conference paper
Electronic Resource
English
PPLN upconversion advances single-photon detection
British Library Online Contents | 2012
|Infrared Imaging Using Nonlinear Optical Upconversion
SPIE | 1977
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