R. Smith, B. Ndagano, G. Redonnet-Brown, A. Weaver, A. Astill, H. White, C. Gawith, L. McKnight
{"title":"Single-photon infrared waveguide-based upconversion imaging","authors":"R. Smith, B. Ndagano, G. Redonnet-Brown, A. Weaver, A. Astill, H. White, C. Gawith, L. McKnight","doi":"10.1117/12.2636260","DOIUrl":null,"url":null,"abstract":"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).","PeriodicalId":52940,"journal":{"name":"Security and Defence Quarterly","volume":"47 1","pages":"1227103 - 1227103-5"},"PeriodicalIF":0.0000,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Security and Defence Quarterly","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.2636260","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
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).
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