Broadband upconversion imaging around 4 µm using an all-fiber supercontinuum source

Laurent Huot, Peter M. Moselund, Lasse Leick, Peter Tidemand-Lichtenberg, Christian Pedersen

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    Abstract

    We present a novel mid-infrared imaging system born from the combination of an all-fiber mid-IR supercontinuum source developed at NKT with ultra-sensitive upconversion detection technology from DTU Fotonik. The source delivers 100 mW of average power and its spectrum extends up to 4.5 µm. The infrared signal is passed through a sample and then focused into a bulk AgGaS2 crystal and subsequently mixed with a synchronous mixing signal at 1550 nm extracted from the pump laser of the supercontinuum. Through sum frequency generation, an upconverted signal ranging from 1030 nm to 1155 nm is generated and acquired using an InGaAs camera.
    Original languageEnglish
    Title of host publicationProceedings of SPIE
    Number of pages7
    Volume10088
    PublisherSPIE - International Society for Optical Engineering
    Publication date2017
    Article number100880J
    DOIs
    Publication statusPublished - 2017
    EventNonlinear Frequency Generation and Conversion 2017: Materials and Devices XVII - The Moscone Center, San Francisco, United States
    Duration: 27 Jan 20171 Feb 2017
    Conference number: 17

    Conference

    ConferenceNonlinear Frequency Generation and Conversion 2017
    Number17
    LocationThe Moscone Center
    Country/TerritoryUnited States
    CitySan Francisco
    Period27/01/201701/02/2017

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