The lowest cost and smallest footprint VGA SWIR detector with high performance

S. Frasse-Sombet; T. Colin; C. Bonvalot; J. Fantini; A. Nedelcu; J. Coussement; J. Dupuy; P. Garabédian; Y. Daultier; L. Rubaldo; S. Pelletier

doi:10.1117/12.2522104

7 May 2019 The lowest cost and smallest footprint VGA SWIR detector with high performance

S. Frasse-Sombet, T. Colin, C. Bonvalot, J. Fantini, A. Nedelcu, J. Coussement, J. Dupuy, P. Garabédian, Y. Daultier, L. Rubaldo, S. Pelletier

Author Affiliations +

Proceedings Volume 11002, Infrared Technology and Applications XLV; 1100215 (2019) https://doi.org/10.1117/12.2522104
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

SOFRADIR is the worldwide leader on the cooled IR detector market for high-performance space, military and security applications thanks to a well mastered Mercury Cadmium Telluride (MCT) technology, and recently thanks to the acquisition of III-V technologies including Indium Gallium Arsenide (InGaAs). As a result, strong and continuous development efforts are deployed to deliver cutting edge products with improved performances in terms of spatial and thermal resolution, dark current, quantum efficiency, low excess noise and operability. Recent years have evidenced significant progress with InGaAs process maturity enabling low noise detectors operable at room temperature, with no cooling requirement. This new generation of so called Tecless devices meets a surging interest for affordable Short-Wave Infrared (SWIR) detectors for use in volume applications such as industrial machine vision, science imaging or surveillance applications. For these systems, the latest uncooled InGaAs sensors allow major cost savings without sacrificing performance. In this talk we will review and analyze the impact of temperature on InGaAs detectors. We will also discuss implementation and optimization tradeoffs which should be considered when using uncooled InGaAs SWIR detectors.

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S. Frasse-Sombet, T. Colin, C. Bonvalot, J. Fantini, A. Nedelcu, J. Coussement, J. Dupuy, P. Garabédian, Y. Daultier, L. Rubaldo, and S. Pelletier "The lowest cost and smallest footprint VGA SWIR detector with high performance", Proc. SPIE 11002, Infrared Technology and Applications XLV, 1100215 (7 May 2019); https://doi.org/10.1117/12.2522104

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KEYWORDS

Sensors

Indium gallium arsenide

Short wave infrared radiation

Staring arrays

Nonuniformity corrections

Diffusion

Image quality

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